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Ricoh A085, Manual

The Ricoh A085 manual is available for download for free on our website. This comprehensive manual provides detailed instructions on how to maximize the potential of your Ricoh A085 product. Visit manualshive.com now to access and download the manual, empowering you to make the most of your device's features.

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EM

80K 160K 240K

NOTE

End Blocks and Casing

C

C

C

C

Water or alcohol

Transfer Guide Plate

C

C

C

C

Dry cloth

Pre-Transfer Lamp Filter

C

C

C

C

Dry cloth and blower brush,
discharge any static before
installation

Quenching Lamp Filter

C

C

C

C

Dry cloth, discharge any static
before installation

Toner Shield Glass and Filter

C

C

C

C

Dry cloth, discharge any static
before installation

ID Sensor

(C)

C

C

C

Blower brush

V Sensor

(C)

C

C

C

Blower brush

Erase Lamp Unit

C

C

C

C

Dry cloth

Pick-off Pawls

C

C

C

C

Replace if necessary

CLEANING UNIT

Cleaning Blade

R

R

R

Cleaning Seal

C

C

C

Replace if necessary

Cleaning Brush

R

R

R

Used Toner Tank

(C)

C

C

C

Empty used toner

DEVELOPMENT UNIT

Developer

R

R

R

Development Unit Gears

C/L

Grease G–40M  Refer to NOTE 2

Upper Seal

C

C

C

Side Seals

C

C

C

FUSING UNIT

Hot Roller

C

R/L

C

Replace if necessary, Grease
Barrierta L55/2   Refer to NOTE 3

Pressure Roller

C

R/L

C

Replace if necessary, Grease
Barrierta L55/2   Refer to NOTE 3

Stripper Pawls

C

R

R

R

Replace

Fusing Entrance and Exit
Guides

C

C

C

Suitable solvent

Fusing Thermistor

I

I

I

Suitable solvent, clean if
necessary

Fusing Drive Gear

R/L

Grease G501  Refer to NOTE 3

DUPLEX

    (for duplex copies)

Feed Roller

R

R

R

Bottom Plate Pad

R

R

R

Service

Tables

12 February 1992

PREVENTIVE MAINTENANCE SCHEDULE

4-39

Summary of Contents for A085

Page 1: ...RICOH FT4227 FT4427 FT4727 A085 A087 A088 PARTS CATALOG First Edition August 1992 RICOH COMPANY LTD ...

Page 2: ...r instructs you the numbers and names of these parts on this machine INDEX to PARTS CATALOG FT4227 FT4427 FT4727 A085 A087 A088 PS140 250 A325 A326 DF56 A497 CS120 A327 SORTER ADAPTER TYPE G A328 CS2080 A411 CS2090 A423 ST24 A374 MR20 A952 ...

Page 3: ...FT4227 FT4427 FT4727 A085 A087 A088 ...

Page 4: ...A087 A088 38 16 LCT SECTION 3 A087 A088 40 17 VERTICAL TRANSPORT SECTION A085 A087 A088 42 18 PAPER REGISTRATION A085 A087 A088 44 19 DRUM SECTION 1 A085 A087 A088 46 20 DRUM SECTION 2 A085 A087 A088 48 21 DEVELOPMENT UNIT 1 A085 A087 A088 50 22 DEVELOPMENT UNIT 2 A085 A087 A088 52 23 CLEANING UNIT A085 A087 A088 54 24 T S CORONA UNIT A085 A087 A088 56 25 TRANSPORT SECTION A085 A087 A088 58 26 FUS...

Page 5: ...8 84 39 ELECTRICAL SECTION 4 A085 A087 A088 86 40 DUPLEX UNIT 1 A088 88 41 DUPLEX UNIT 2 A088 90 42 DUPLEX UNIT 3 A088 92 43 MAIN CONTROL BOARD A085 A087 A088 94 44 MEMORY BOARD A085 A087 A088 99 45 AC HARNESS A085 A087 A088 101 46 DC HARNESS TYPE 2 A085 A087 A088 103 47 DC HARNESS TYPE 4 A085 A087 A088 105 48 FUSING UNIT HARNESS A085 A087 A088 107 49 LCT HARNESS A087 A088 109 50 DECAL AND DOCUMEN...

Page 6: ...3 LOCATION OF UNIT ...

Page 7: ...4 LOCATION OF UNIT ...

Page 8: ...5 LOCATION OF UNIT ...

Page 9: ...6 LOCATION OF UNIT ...

Page 10: ...7 LOCATION OF UNIT ...

Page 11: ...8 LOCATION OF UNIT ...

Page 12: ...9 LOCATION OF UNIT ...

Page 13: ...10 1 EXTERIOR 1 A085 A087 A088 ...

Page 14: ...6 A087 1262 Front Upper Cover A087 1 16 A085 1262 Front Upper Cover A085 1 17 A006 1396 Decal Lock 1 18 AF04 3028 Copy Tray Slid 1 19 AG07 0004 Magnet Catch 1 20 A006 4493 Guide Copy Tray 1 21 A073 1278 Decal Adding Toner 1 22 A073 1327 Decal Removing Misfeed Paper A B A085 A087 1 22 A074 1327 Decal Misfeed Removal A B A088 1 23 A074 1326 Decal Misfeed Removal C A088 1 24 A073 1326 Decal Removing ...

Page 15: ...12 2 EXTERIOR 2 A085 A087 A088 ...

Page 16: ...Cover 1 8 A088 1532 Decal Symbol A4 A088 1 8 A088 1531 Decal Symbol LT A088 1 8 A087 1532 Decal Symbols A4 A085 A087 1 8 A087 1531 Decal Symbol LT A087 1 9 A006 1268 Decal Scale A4 1 9 A006 1266 Decal Scale LT 1 10 A069 1291 Rear Cover 1 11 5442 1372 Decal Power Source 220V 1 12 AA01 2050 Filter Right Optics Cover 1 13 A069 1341 Right Optics Cover 1 14 A069 1261 Right Upper Cover 1 15 AG07 0004 Ma...

Page 17: ...14 3 OPERATION PANEL A085 A087 A088 ...

Page 18: ...1 A087 5650 Operation Panel Ass y A4 A085 A087 1 A087 5550 Operation Panel Ass y LT A087 1 1 A087 1501 Operation Panel Case A4 1 1 A087 1481 Operation Panel Case LT 1 2 A088 1502 Indication Panel Cover A4 A088 1 2 A088 1482 Indication Panel Cover LT A088 1 2 A087 1502 Indication Panel Cover A4 A085 A087 1 2 A087 1482 Indication Panel Cover LT A087 1 3 A085 1463 Keytop Start 1 4 A087 1504 Keytop Cl...

Page 19: ...16 4 PLATEN COVER A085 A087 A088 ...

Page 20: ...3 Left Spring Platen Cover 1 17 5215 2842 Right Spring Platen Cover 1 18 5215 2846 Platen Base 1 19 A053 5219 Positioning Sensor Harness 1 20 5205 5251 LED Sensor Type T 1 20 AW02 0041 Photointerruptor ASIA 1 21 A053 1949 Positioning Sensor Bracket 1 22 A053 1960 Positioning Sensor Shutter 1 22 A069 1958 Positioning Sensor Shutter ASIA 1 23 A053 1948 Mounting Bracket Platen Cover 1 23 A069 1956 Pl...

Page 21: ...18 5 OPTICS SECTION 1 A085 A087 A088 ...

Page 22: ...ont 1 19 A048 1721 Spring Plate A 2 20 A085 1669 Support Bushing 2 21 A085 1661 1st Scanner Frame 1 22 A069 1864 1st Scanner Shutter 1 23 A069 1863 1st Scanner Clamp Rear 1 24 A085 1667 Rear Lamp Terminal 1 25 A085 1668 Terminal Supporter 2 26 AW11 0011 Thermostat 140 C AC120V 15A 1 27 A085 5360 Extension Lamp Harness 1 28 A069 1881 2nd Mirror Support Plate 1 29 A085 1673 Small Reflector 2 30 A085...

Page 23: ...20 6 OPTICS SECTION 2 A085 A087 A088 ...

Page 24: ...3 0021 5th Mirror 1 19 A069 1841 6th Mirror Bracket 1 20 A069 1844 Spring Plate 6th Mirror 2 21 AC03 0063 6th Mirror 1 22 A069 1843 6th Mirror Bracket Front 1 23 A006 1766 Adjusting Cam 1 24 A069 5252 Reed Switch PS0009 1 25 AW40 0010 Original Width Sensor 1 26 A069 1805 Upper Seal Lens Cover 1 100 0313 0050W Philips Pan Head Screw M3x5 101 0434 0060W Tapping Screw M4x6 102 0951 3006W Philips Scre...

Page 25: ...22 7 OPTICS SECTION 3 A085 A087 A088 ...

Page 26: ...t 3rd Scanner 1 19 A069 5206 3rd Scanner Drive Motor DC24V 1 20 A069 1667 Scanner Slide Rail Rear 1 21 AA15 0258 Seal 0 2x13x250 1 22 5215 1812 Lens Drive Pulley 1 23 A069 1811 Lens Motor Bracket 1 24 A069 5207 Lens Drive Motor DC24V 1 25 A069 1668 Scanner Slide Rail Front 1 26 AA15 0293 Seal 0 1x18x275 1 27 AA15 2190 Seal 4x5x45 2 100 0951 3005W Philips Screw with Flat Washer M3x5 101 0951 3008W ...

Page 27: ...24 8 OPTICS SECTION 4 A085 A087 A088 ...

Page 28: ...Pulley Bracket Rear Middle 1 14 A069 1901 Timing Pulley Bracket Rear Right 1 15 AW02 0043 Photointerruptor EE SX4009 P15 3 16 AX65 0010 Cooling Fan Motor DC 8 4W 1 100 0720 0040E Retaining Ring M4 101 0964 4006W Tapping Screw With Flat Washer M4x6 102 0434 0060W Tapping Screw M4x6 103 0314 0100W Philips Pan Head Screw M4x10 104 0314 0050W Philips Pan Head Screw M4x5 105 0314 0080W Philips Pan Head...

Page 29: ...26 9 OPTICS SECTION 5 A085 A087 A088 ...

Page 30: ...7 A069 1950 Exposure Glass Stay 1 18 A069 1903 Scanner Motor Cushion 1 19 A069 1259 Left Bracket Platen Cover 1 20 A069 1932 Rear Seal Right Rail Holder 1 21 5205 1853 Mylar Seal Base 1 100 0434 0060W Tapping Screw M4x6 101 1105 0200 Clamp 102 0314 0040W Philips Pan Head Screw M4x4 103 0720 0060E Retaining Ring M6 104 0433 0060W Tapping Screw M3x6 105 1105 0200 Clamp 106 0720 0040E Retaining Ring ...

Page 31: ...28 10 BY PASS FEED TABLE A085 A087 A088 ...

Page 32: ... Rear Side Fence 1 13 AA00 2140 Decal Paper Size A4 1 13 AA00 2139 Decal Paper Size LT 1 14 A069 2631 Fixed Plate By pass Feed Table 1 15 A069 2638 Rack Manual Feed Table 2 16 AB01 3492 Gear 16Z 1 17 A048 2938 Paper Guide Manual Feed Table 1 18 A069 2871 By pass Feed Cover 1 19 A073 2577 Lever By pass Feed Table 1 101 0964 4008W Tapping Screw with Flat Washer M4x8 102 0960 3008W Philips Flange Scr...

Page 33: ...30 11 PAPER FEED TRAY A085 A087 A088 ...

Page 34: ...racket 1 29 A009 2592 Spring Pressure Release Lever 1 30 A009 2588 Release Lever 3rd Cassette 1 31 A048 2835 Side Fence Gear 2 32 A069 2711 Front Paper Guide 1 33 AA14 3288 Stepped Screw 2 34 A069 2735 Side Fence Stopper 1 35 AA06 3081 Spring 1 36 A069 2714 Front Side Fence 1 37 A048 2838 Nylon Rivet 2 38 AF01 1016 Tray Bottom Plate 1 39 A069 2716 Registration Adjustment Plate 1 40 AB01 3492 Gear ...

Page 35: ...32 12 PAPER FEED SECTION A085 A087 A088 ...

Page 36: ... Cylindrical Spring 1 33 AB04 2004 Clutch Sleeve Torque Limiter 1 34 5447 2678 Slip Clutch Cover 1 35 AF03 2019 Separation Roller 1 36 A069 2555 Paper Feed Guide 1 37 A069 5338 Paper Feed Harness Non LCT 1 37 A073 5338 Paper Feed Harness LCT 1 38 AW02 0041 Photointerruptor 4 39 A069 2681 Sensor Bracket By pass Feed 1 40 A069 2684 Sensor Bracket Paper End 1 41 A069 2556 Paper Feed Stay 1 42 AA14 03...

Page 37: ...34 13 TRAY LIFT SECTION A085 A087 A088 ...

Page 38: ... 1 15 5447 2806 Gear 15T 40T 1 16 5447 2804 Gear 15T 1 17 AW02 0041 Photointerruptor 2 18 A009 2647 Lift Sensor Bracket 1 19 AX04 0058 Tray Lift Motor DC 1 9W 1 20 A009 2632 Tray Lift Bracket 1 100 0434 0080W Tapping Screw M4x8 101 0720 0040E Retaining Ring M4 102 0720 0060E Retaining Ring M6 103 1105 0197 Wire Saddle 104 0964 4008W Tapping Screw with Flat Washer M4x8 105 0960 4012W Philips Flange...

Page 39: ...36 14 LCT SECTION 1 A087 A088 ...

Page 40: ...d Table 2 19 A335 1241 Rear Lower Cover Right 1 20 A335 1221 Front Lower Cover Right 1 21 A335 3441 Motor Cover Plate 1 22 A335 5330 LCT Harness 1 23 A335 1271 Decal Paper Set 1 24 A335 1269 Cover Guard Tape 1 101 0344 0080F Philips Truss Head Screw M4x8 102 0344 0100F Philips Pan Head Screw M4x10 103 0434 0080W Tapping Screw M4x8 104 0313 0300W Philips Pan Head Screw M3x30 105 1204 2136 Micro Swi...

Page 41: ...38 15 LCT SECTION 2 A087 A088 ...

Page 42: ... 4341 Tray Bottom Plate 1 15 A421 2543 Friction Pad 1 16 AA00 0094 Decal LCT Paper Size 1 17 5925 2258 Stopper Chain 1 18 A335 4351 Guide Roller 4 19 A335 4352 Timing Belt Clump 2 20 A335 4346 Front Support Plate 1 21 A335 4347 Rear Support Plate 1 22 A335 4348 Upper Support Plate 1 101 0623 0160E Spring Pin 3x16mm 102 0720 0060E Retaining Ring M6 103 0313 0060W Philips Pan Head Screw M3x6 104 080...

Page 43: ...40 16 LCT SECTION 3 A087 A088 ...

Page 44: ...m Plate 1 17 A335 5330 LCT Harness 1 18 A335 3421 Feed in Guide 1 19 A335 3431 Stay 1 20 A335 3451 Bottom Cover Plate 1 21 A335 3461 Harness Guide Plate 1 22 A335 3412 Right Tape Bottom Plate 1 23 A335 3413 Left Tape Bottom Plate 1 101 1105 0197 Wire Saddle 102 0314 0100W Philips Pan Head Screw M4x10 103 0434 0080W Tapping Screw M4x8 104 0720 0030E Retaining Ring M3 105 0805 3384 Bushing 5mm 106 0...

Page 45: ...42 17 VERTICAL TRANSPORT SECTION A085 A087 A088 ...

Page 46: ...ay Roller Spring 4 25 AA08 0034 Bushing 4x5x7 4 26 AF02 0126 Driven Roller Vertical Transport 2 27 AA14 0338 Feed Roller Shaft 1 28 5447 2681 Snap Ring 2 29 5215 2618 Feed Roller Hub 1 30 5215 2619 Feed Roller 1 31 A069 2740 Tray Feed Stay 1 32 A069 2744 Rear Guide Tray Feed 1 33 A069 2666 Lower Guide Tray Feed 1 34 A069 2657 Center Guide Tray Feed A085 A087 1 34 A070 2657 Duplex Paper Guide A088 ...

Page 47: ...44 18 PAPER REGISTRATION A085 A087 A088 ...

Page 48: ...Bracket 1 15 A069 2614 Lower Relay Guide 1 16 AA06 0316 Lower Guide Spring 1 17 AB01 3487 Gear 20Z 1 18 AA02 0001 Drawer Tray Magnet 2 19 AA06 0315 Upper Guide Spring 1 20 A069 2610 Upper Relay Guide 1 21 AG05 1079 Release Lever Relay Guide 1 22 AB01 3486 Gear 14Z 1 23 AB01 3485 Gear 20Z 1 24 AA08 0084 Bushing Front Registration Roller 1 100 0951 4008W Philips Screw with Flat Washer M4x8 101 0720 ...

Page 49: ...46 19 DRUM SECTION 1 A085 A087 A088 ...

Page 50: ...1 20 A069 5245 V Sensor Board 1 21 A069 2263 Grounding Plate 1 22 A085 2256 Front Side Plate Drum 1 23 A069 2285 Drum Support Plate 1 24 AA14 3313 Stepped Screw M5x7 1 25 0805 3441 Ball Bearing 8x22mm 1 26 A048 2258 Drum Holder 1 27 A069 2278 Seal 0 1x12x22 2 28 A069 2283 Guide Ring 2 29 A069 2273 V Sensor Seal 2 30 A023 2074 Hight Voltage Decal 2 31 AD02 5012 Pick off Pawl 2 100 0413 0062W Tappin...

Page 51: ...48 20 DRUM SECTION 2 A085 A087 A088 ...

Page 52: ... 2130 Anchor Grid 1 19 AD02 2260 Front End Block Main Charge 1 20 A069 9540 Charge Corona Wire 10pcs set 1 21 A030 6231 Corona Wire Ring 2 22 5442 2108 Spring Corona Wire 2 23 A069 2127 Adjuster Main Charge 1 24 AD02 2261 Front End Block Cover Main Charge 1 25 A069 2075 Electrod Plate 1 100 0314 0080W Philips Pan Head Screw M4x8 101 0413 0082W Tapping Screw M3x8 102 0951 4008W Philips Screw with F...

Page 53: ...50 21 DEVELOPMENT UNIT 1 A085 A087 A088 ...

Page 54: ...11 AD03 8021 Right Paddle Roller 1 12 A006 3335 Knob Paddle 1 13 AA15 2162 Rear Lower Seal Development 1 14 A069 3061 Lower Casing 1 15 A006 3205 Development Pannel Plate 1 16 AD03 7034 Mixing Auger 1 100 0314 0060W Philips Pan Head Screw M4x6 101 0314 0080W Philips Pan Head Screw M4x8 102 0725 0100E Retaining Ring C M10 103 0720 0040E Retaining Ring M4 104 0314 0100W Philips Pan Head Screw M4x10 ...

Page 55: ...52 22 DEVELOPMENT UNIT 2 A085 A087 A088 ...

Page 56: ...ng Toner Supply NA 1 5 AB01 3156 Gear 27T 1 6 AB01 3157 Gear 67T 1 7 5215 3295 Hopper Filter 1 8 AA15 0060 Seal 20x28mm 1 9 AA15 1100 Seal 2x28x320mm 1 10 A006 3160 Slitter 1 11 5215 3327 Shaft Agitator 1 12 5215 3347 Spring Gear 1 13 5215 3328 Joint Hopper 1 14 A006 3171 Rear Side Bracket 1 15 AA15 1148 Seal Supply Roller Rear 1 16 AA15 1104 Seal Toner Supply Roller 2 17 5215 3399 Seal 50x19mm 2 ...

Page 57: ...54 23 CLEANING UNIT A085 A087 A088 ...

Page 58: ... Blade Seal 1 19 AB01 7062 Coupled Gear 17T 18T 1 20 AB01 1026 Gear 17T 1 21 AB01 7044 Coupled Gear 18T 35T 1 22 AB01 1027 Gear 19T 1 23 5446 3648 Stepped Screw M4 1 24 AD00 2017 Cleaning Blade 1 25 AA15 1109 Seal 5x16x5 2 26 A069 3580 Toner Collection Shaft 1 27 A006 3603 Front Brush Holder 1 28 AD04 2016 Cleaning Brush 1 29 AB01 1019 Gear 12T 1 30 A069 3567 Rear Brush Holder 1 31 AA15 2016 Side ...

Page 59: ...56 24 T S CORONA UNIT A085 A087 A088 ...

Page 60: ...rona Wire 10pcs set 1 6 AD02 2201 Front End Block 1 7 A069 3070 Entrance Seal 1 8 AD02 2203 Rear End Block 1 9 A006 3855 Terminal Cover Transfer 1 10 AD02 2204 Rear End Block Cover 1 11 AA06 3036 Terminal Spring 2 100 0413 0082W Tapping Screw M3x8 101 0952 3006W Philips Screw M3x6 24 T S CORONA UNIT A085 A087 A088 Q ty per Assembly Index No Q ty per Assembly Index No Description Part No Descriptio...

Page 61: ...58 25 TRANSPORT SECTION A085 A087 A088 ...

Page 62: ...t Release Lever 1 19 A069 3882 Release Lever Bracket 1 20 A085 4351 Fusing Unit Guide Rail 1 21 A085 4355 Release Lever Fusing Unit 1 22 5203 1686 Screw Slid Rail 3 23 AA06 0318 Fusing Lock Spring 1 24 A069 2014 T S Corona Receptacle 1 25 A069 5827 Duct Bracket 1 26 A085 5623 AC Harness 230V 1 26 A085 5621 AC Harness 115V 1 27 A069 4189 Board Angle 1 28 5442 4467 Spring Stripper Pawl Plate 2 29 AA...

Page 63: ...60 26 FUSING UNIT 1 A085 A087 A088 ...

Page 64: ... 4086 Fusing Unit Guide 1 23 5447 2769 Stepped Screw 2 24 A085 4116 Side Plate Entrance Guide 1 25 A085 4139 Entrance Guide Slider 1 26 A085 4146 Rear Pressure Lever 1 27 A085 4190 Rear Heater Holder 1 28 A085 4110 Rear Side Plate 1 29 A085 4144 Fusing Connector Bracket 1 30 A085 5339 Fusing Unit Harness 1 31 AB01 3501 Gear 26Z 1 32 AB01 3559 Gear 40Z 1 33 AB01 3481 Gear 18Z 1 34 AB01 3482 Gear 24...

Page 65: ...62 27 FUSING UNIT 2 A085 A087 A088 ...

Page 66: ...ng 5 15 A006 9002 Hot Roller Stripper 5pcs set 1 17 AA00 1231 Decal Fusing Unit Removal 230V 1 17 AA00 1230 Decal Fusing Unit Removal 115V 1 18 AA00 0118 Decal High Temperature 2 19 A085 4131 Upper Exit Guide 1 20 5840 1632 Stepped Screw 5 21 A085 4132 Lower Exit Guide 1 22 AB01 3484 Gear 15Z 1 23 AA00 1205 Decal B 1 24 A073 4149 Decal Removing Misfeed Paper Fusing 1 100 0964 4008W Tapping Screw w...

Page 67: ...64 28 PAPER EXIT SECTION 1 A085 A087 A088 ...

Page 68: ...035 Photointerruptor 55C A088 1 17 A070 4182 Junction Gate Stay A088 1 18 AB01 7185 Double Gear 20 16Z 1 19 5447 3236 Gear 23T 2 20 A328 1095 Gear Bracket 1 21 AB01 3483 Gear 32Z 1 22 A069 4162 Rear Magnet Plate 1 23 AB01 3560 Gear 30Z 1 24 AA14 3400 Stepped Screw M4x7 2 25 A328 1091 Cover Plate 1 101 0964 4008W Tapping Screw with Flat Washer M4x8 102 0960 4030W Philips Flange Screw M4x30 103 0720...

Page 69: ...66 29 PAPER EXIT SECTION 2 A085 A087 A088 ...

Page 70: ...069 4164 Exit Sensor Stay 1 16 A070 4194 Junction Gate Solenoid A088 1 17 AA06 0397 Turn Gate Spring A088 1 18 5206 2686 Snap Ring A088 1 19 AA04 2006 Turn Roller Drive Belt A088 1 20 AB01 7184 Gear 19Z 1 21 A470 1703 Shift Clutch 1 22 A470 1704 Spring Lower Exit Roller 1 23 AB01 7207 Pulley A088 1 100 0434 0080W Tapping Screw M4x8 101 0720 0040E Retaining Ring M4 102 0964 4008W Tapping Screw With...

Page 71: ...68 30 FRAME SECTION 1 A085 A087 A088 ...

Page 72: ...9 1134 Grounding Plate 1 15 A069 1079 Rear Positioning Plate Optics 1 16 A070 4927 Stopper Plate Duplex Tray A088 1 30 FRAME SECTION 1 A085 A087 A088 100 0434 0060W Tapping Screw M4x6 101 0434 0080W Tapping Screw M4x8 102 0314 0080W Philips Pan Head Screw M4x8 103 0964 4008W Tapping Screw with Flat Washer M4x8 104 1105 0197 Wire Saddle 105 0720 0040E Retaining Ring M4 106 1105 0201 Harness Clamp 1...

Page 73: ...70 31 FRAME SECTION 2 A085 A087 A088 ...

Page 74: ...10 5446 6334 Front Spring Tray Pressure A088 1 10 AA06 0472 Tray Arm Spring A085 A087 1 11 A069 2759 Tray Guide Arm A085 A087 1 11 A070 2775 Tray Lock Arm A088 1 12 A069 2769 Left Stay A085 A087 1 12 A070 2773 Tray Lock Stay A088 1 13 A069 2823 Rail Guide Roller 2 14 A069 2704 Guide Roller 6x12x7 5 1 15 A070 4909 Right Rail Duplex Tray A088 1 100 0314 0060W Philips Pan Head Screw M4x6 101 0434 008...

Page 75: ...72 32 FRAME SECTION 3 A085 A087 A088 ...

Page 76: ... A069 3623 Cleaning Release Shaft 1 13 AA10 0003 Stopper E 2 14 A069 3631 Cleaning Unit Rail 1 15 A069 3637 Lower Duct 1 16 A069 3641 Duct Support Plate 1 17 A069 3636 Upper Duct 1 18 AA15 1731 Duct Seal 1 100 0951 3006W Philips Screw With Flat Washer M3x6 101 0314 0060W Philips Pan Head Screw M4x6 102 0434 0080W Tapping Screw M4x8 103 1106 0200 Bushing 19 44mm 104 0413 0082W Tapping Screw M3x8 10...

Page 77: ...74 33 FRAME SECTION 4 A085 A087 A088 ...

Page 78: ... 1 11 5420 1515 Plate Key Counter 1 12 A006 1352 Key Counter Cover 1 13 5918 3120 Stud M4 1 14 5304 1639 Bushing 8mm 4 15 5216 2676 Spring Engage Gear Bracket 1 16 A085 3483 Development Pressure Arm 1 100 0720 0040E Retaining Ring M4 101 1105 0229 Clamp 102 0434 0080W Tapping Screw M4x8 103 0720 0060E Retaining Ring M6 104 1105 0262 Wire Saddle 105 0323 0060W Philips Sunken Head Screw M3x6 33 FRAM...

Page 79: ...76 34 DRIVE SECTION 1 A085 A087 A088 ...

Page 80: ...1 20 AB01 7192 Timing Pulley 30Z 1 21 AA01 0062 Ozone Filter 1 22 AX64 0027 Transfer Fan Motor DC 4 8W 1 23 A069 1102 Clutch Case Development Drive 1 24 AB03 0274 Drum Pulley 80Z 1 25 AX20 0058 Magnetic Clutch Development Drive 1 26 AA04 3118 Timing Belt 8x537 1 27 5205 2866 Magnetic Clutch Collar 1 100 0434 0352W Pan Head Self Tapping Screw M4x35 101 0725 0170E Retaining Ring C M17 102 0720 0060E...

Page 81: ...78 35 DRIVE SECTION 2 A085 A087 A088 ...

Page 82: ...ming Belt Tightener 1 26 AB03 0273 Timing Pulley 20Z 1 27 AA06 0359 Tension Spring 1 28 A069 5837 Link Cover Plate 1 29 A069 2985 Lock Plate Feed Clutch 2 30 AB01 7188 Gear Pulley 24 24Z 2 31 AA04 3120 Timing Belt 7x612 1 32 AB01 7262 Gear Pulley 35 30Z 1 33 A069 1299 Rear Cover Bracket Right 1 34 A069 1090 Base Cover Plate 1 35 AB01 7202 Gear Pulley 35 32Z 1 36 AA04 3211 Timing Belt B90S3M564 1 3...

Page 83: ...80 36 ELECTRICAL SECTION 1 A085 A087 A088 ...

Page 84: ...A085 A087 1 6 A087 5330 Dc Main Harness 115V A087 1 7 A069 1073 Front Positioning Plate Optics 1 8 A006 5828 Cover Counter 1 9 5439 5246 Totalizer Ass y 230V 1 9 5442 5385 Tatal Counter 115V 1 10 A069 5831 Counter Bracket 1 100 0314 0080W Philips Pan Head Screw M4x8 101 0434 0060W Tapping Screw M4x6 102 1105 0199 Clamp 103 0434 0080W Tapping Screw M4x8 104 1204 1545 Main Switch 36 ELECTRICAL SECTI...

Page 85: ...82 37 ELECTRICAL SECTION 2 A085 A087 A088 ...

Page 86: ...088 1 9 A073 5331 DC Harness Paper Feed A087 1 9 A069 5331 DC Harness Paper Feed A085 1 10 A085 5111 Main Control Board 1 11 A069 5814 Main Control Board Bracket 1 12 A069 5816 Hinge Main Control Board 1 13 A073 5181 LCT Interface Board A087 A088 1 14 A073 5350 Fuse Harness 3 15A 125V 1 15 AA00 0123 Decal Fuse 1 100 1105 0183 Spacer 101 0964 4008W Tapping Screw with Flat Washer M4x8 102 0960 4006W...

Page 87: ...84 38 ELECTRICAL SECTION 3 A085 A087 A088 ...

Page 88: ...115V 1 15 AZ50 0019 CFL Stabilizer 230V 1 16 A069 5835 Board Bracket Main Motor 1 17 AA14 3300 Stepped Screw M3x4 1 18 A086 5331 DC Main Harness 230V A088 1 18 A088 5330 Dc Main Harness 115V A087 A088 1 18 A087 5330 Dc Main Harness 115V A087 1 18 A085 5330 Dc Main Harness 230V A085 1 19 A069 5808 Transfomer Bracket 1 20 5205 5405 Transfomer 115V 1 20 AZ12 0018 Main Transfomer 230V 1 21 A085 5648 N...

Page 89: ...86 39 ELECTRICAL SECTION 4 A085 A087 A088 ...

Page 90: ...ay Lock Solenoid 1 17 AA16 1016 Cushion Fork Gate 1 18 A069 2832 Seal 0 2x36x46 1 19 AA06 0436 Tray Lock Spring 1 100 0720 0030E Retaining Ring M3 101 1104 0224 Relay Bracket 102 0434 0080W Tapping Screw M4x8 103 1208 1029 Power Relay 104 0313 0060W Philips Pan Head Screw M3x6 105 0960 4010W Philips Flange Screw M4x10 106 0960 4006W Philips Flange Screw M4x6 107 0314 0100W Philips Pan Head Screw M...

Page 91: ...88 40 DUPLEX UNIT 1 A088 ...

Page 92: ...Stopper Duplex Tray 1 29 A334 4880 Guide Bracket Right Rail 1 30 A334 4890 Tray Positioning Bracket 1 31 A334 4655 End Fence Guide 1 32 A491 4890 Harness Clamp Plate 5 33 A491 4630 Bottom Cover 1 34 A069 1353 Front Cover Upper 1 35 AA00 1197 Decal Duplex Tray Removal 1 36 A491 4686 Cushion Tray Bottom Plate 1 37 AB01 7164 Gear 21Z 64Z 1 38 A491 4645 End Fence Rack 1 39 A491 4647 Cushion Side Fence...

Page 93: ...90 41 DUPLEX UNIT 2 A088 ...

Page 94: ...4 4750 Lower Guide Plate 1 25 A334 4753 Paper Flatenner 4 26 A334 4790 Turn Guide Plate 1 27 AA14 3307 Stepped Screw M3x4 1 28 AA14 5119 Jog Plate Shaft 2 29 A334 4765 Guide Plate Paper Feed 1 30 A334 4785 Mylar Seal 0 5x18x22 5 2 31 AF03 2017 Separation Roller 2 32 AA08 0128 Bushing 6x9x8 2 33 AA06 3198 Separation Spring 2 34 A334 4813 Separation Roler Shaft 1 35 A334 4811 Separation Roller Holde...

Page 95: ...92 42 DUPLEX UNIT 3 A088 ...

Page 96: ...91 4715 Paper End Actuator 1 29 5216 5245 Photointerruptor IL G 3P S3T2 E 1 30 A334 4680 Rear Side Plate 1 31 A334 4893 Grounding Plate 1 32 A334 5331 Sub Harness Duplex 1 33 AA11 1011 Paper End Feeler 1 34 A334 4683 Stopper Upper Guide Plate 1 35 A334 4710 Bracket Paper End Sensor 1 36 A334 4823 Bushing Feed Roller 1 37 5215 2621 Snap Ring M6 2 38 AF02 0184 Duplex Stack Roller 2 39 AF02 2060 Driv...

Page 97: ...94 43 MAIN CONTROL BOARD A085 A087 A088 ...

Page 98: ...95 43 MAIN CONTROL BOARD A085 A087 A088 ...

Page 99: ...96 43 MAIN CONTROL BOARD A085 A087 A088 ...

Page 100: ...or 20P 115 1103 3022 Connector 30P 116 1103 3024 Connector 117 1103 3025 Connector 50P 118 1103 3027 Connector 64P 119 1104 0339 IC Socket 64P 120 1104 0589 DIP Socket 32P 121 1400 0558 Transistor 2SD780 122 1401 0826 Diode 1SS181 123 1402 0688 Diode 124 1402 0804 Diode 1SS294 125 1402 1037 Diode U1ZB12 126 1402 1122 Diode MA159A 127 1404 0163 Diode Z2010 128 1407 1600 IC SN74LS244NS 129 1407 2187...

Page 101: ...0 1uF 163 1606 1139 Capaciter 0 01uF 20 164 1607 0551 Inductor BLM32A07PB 165 1610 0286 Capacitor 100pF 50V 10 166 1610 1162 Resistor 82 Ω 1 4W 5 167 1630 2102 Resistor 1K Ω 1 8W 5 168 1630 2103 Resistor 10K Ω 1 8W 169 1630 2104 Resistor 100K Ω 1 8W 5 170 1630 2105 Resistor 1M Ω 1 8W 171 1630 2152 Resistor 1 5K Ω 1 8W 5 172 1630 2161 Resistor 160 Ω 1 8W 5 173 1630 2181 Resistor 180 Ω 1 8W 5 174 16...

Page 102: ...99 44 MEMORY BOARD A085 A087 A088 ...

Page 103: ...ode 1SS184 106 1402 0682 Zener Diode RD3 6M 107 1407 2797 IC TC5564AFL 15 108 1606 1454 Capacitor 0 01uF 25V 109 1630 2103 Resistor 10K Ω 1 8W 110 1630 2152 Resistor 1 5K Ω 1 8W 5 111 1630 2472 Resistor 4 7K Ω 1 8W 5 44 MEMORY BOARD A085 A087 A088 Q ty per Assembly Index No Q ty per Assembly Index No Description Part No Description Part No ...

Page 104: ...101 45 AC HARNESS A085 A087 A088 ...

Page 105: ...t 114 1102 0983 Connector 2P 115 1102 1878 Connector 3P 116 1102 1401 Receptacle Housing 1P 117 1102 1402 Receptacle Housing 1P 118 1102 1403 Receptacle Housing 119 1102 1404 Connector 1P 120 1102 1507 Connector 2P 121 1102 1508 Connector 3P 122 1102 1514 Connector 1P 123 1102 1515 Connector 2P 124 1102 1524 Connector 2P 125 1102 1532 Connector 2P 126 1102 1815 Connector 3P 127 1102 3203 Contact 1...

Page 106: ...103 46 DC HARNESS TYPE 2 A085 A087 A088 ...

Page 107: ...3 1100 1625 Receptacle F187 124 1102 0185 Connector 4P 125 1102 1089 Connector 3P 126 1102 1286 Connector 2P 127 1102 1402 Receptacle Housing 1P 128 1102 1404 Connector 1P 129 1102 5291 Connector 9P 130 1102 1426 Connector 3P 131 1102 1509 Connector 4P 132 1102 1515 Connector 2P 133 1102 1632 Connector 4P 134 1102 1634 Connector 5P 135 1102 1692 Connector 2P 136 1102 1714 Connector 6P 137 1102 172...

Page 108: ...105 47 DC HARNESS TYPE 4 A085 A087 A088 ...

Page 109: ... Pin Contact 105 1100 1490 Pin Contact 106 1102 1426 Connector 3P 107 1102 1620 Connector 3P 108 1102 1628 Connector 9P 109 1102 1692 Connector 2P 110 1102 1693 Connector 7P 111 1102 1729 Connector 6P 112 1102 1746 Connector 8P 113 1102 1787 Connector 3P 114 1102 5260 Plug Housing 6P 115 1102 5272 Connector 2P 116 1103 0657 Connector 50P 117 1103 0658 Connector 40P Q ty per Assembly Index No Q ty ...

Page 110: ...107 48 FUSING UNIT HARNESS A085 A087 A088 ...

Page 111: ... 104 1100 1249 Receptacle Terminal 105 1100 1342 Terminal 106 1100 1346 Pin Contact 107 1100 1527 Contact 108 1102 1006 Pin Housing 1P 109 1102 1620 Connector 3P 110 1102 1692 Connector 2P 48 FUSING UNIT HARNESS A085 A087 A088 Q ty per Assembly Index No Q ty per Assembly Index No Description Part No Description Part No ...

Page 112: ...109 49 LCT HARNESS A087 A088 ...

Page 113: ... 1100 1322 Contact 107 1102 1286 Connector 2P 108 1102 1402 Receptacle Housing 1P 109 1102 1404 Connector 1P 110 1102 1620 Connector 3P 111 1102 1621 Receptacle Housing 3P 112 1102 1692 Connector 2P 113 1102 5264 Plug Housing 7P 114 1102 5266 Plug Housing 9P 115 1102 5289 Connector 7P 116 1402 1055 Zener Diode 1 2W 33V Q ty per Assembly Index No Q ty per Assembly Index No Description Part No Descr...

Page 114: ...111 50 DECAL AND DOCUMENT A085 A087 A088 ...

Page 115: ...112 50 DECAL AND DOCUMENT A085 A087 A088 ...

Page 116: ...113 50 DECAL AND DOCUMENT A085 A087 A088 ...

Page 117: ...114 50 DECAL AND DOCUMENT A085 A087 A088 ...

Page 118: ...115 50 DECAL AND DOCUMENT A085 A087 A088 ...

Page 119: ...per Size LT 1 20 A006 1268 Decal Scale A4 1 20 A006 1266 Decal Scale LT 1 21 A006 1396 Decal Lock 1 22 A006 1398 Decal Unlock 1 23 A023 2074 High Voltage Decal 1 24 A030 1370 Decal C 1 25 A073 1278 Decal Adding Toner 1 26 A073 1326 Decal Removing Misfeed Paper D 1 27 A073 2739 Decal Loading Paper 1 28 A335 1271 Decal Paper Size LT 1 28 AA00 2148 Decal Paper Size A4 1 29 AA00 1005 Decal A 1 30 AA00...

Page 120: ...117 51 SPECIAL TOOL A085 A087 A088 ...

Page 121: ... JFE 5 5 2 1 4 5442 9103 Launa Oil 1 5 5420 9516 Test Chart OS A3 10psc Set 1 6 A008 9502 Silicone Grease G40m 1 7 A006 9105 Drum Shaft 1 8 A069 9502 Alvania 2 Greese 1 9 5442 9106 Drum Shoe 1 10 5447 9104 Shoe Adaptor 1 51 SPECIAL TOOL A085 A087 A088 Q ty per Assembly Index No Q ty per Assembly Index No Description Part No Description Part No ...

Page 122: ...PARTS INDEX ...

Page 123: ...ing Unit Rail 61 21 A085 4116 Side Plate Entrance Guide 61 24 A085 4119 Spring Plate 61 20 A085 4120 Upper Stay 61 14 A085 4123 Stripper Pawl Holder 63 12 A085 4127 Lower Entrance Guide 61 18 A085 4130 Exit Side Plate 63 8 A085 4131 Upper Exit Guide 63 19 A085 4132 Lower Exit Guide 63 21 A085 4133 Exit Release Lever 63 2 A085 4137 Exit Sensor Feeler 63 9 A085 4139 Entrance Guide Slider 61 25 A085 ...

Page 124: ...l Instruction A4 A085 A087 115 36 A087 1525 Panel Sorter NA 15 39 A087 1526 Panel Sorter EU 15 39 A087 1527 Keytop Sorter 15 38 A087 1531 Decal Symbol LT A087 13 8 A087 1531 Decal Symbol LT A087 115 34 A087 1532 Decal Symbols A4 A085 A087 13 8 A087 1532 Decal Symbols A4 A085 A087 115 34 A087 4060 Fusing Unit 115V 61 A087 5330 Dc Main Harness 115V A087 81 6 A087 5330 Dc Main Harness 115V A087 83 2 ...

Page 125: ...l Fuse 115 32 AA00 1005 Decal A A085 A087 31 45 AA00 1005 Decal A 115 29 AA00 1006 Decal B 31 45 AA00 1006 Decal B 115 30 AA00 1190 Decal Ground 115 8 AA00 1196 Decal Switch 230V 11 3 AA00 1196 Decal Switch 230V 115 9 AA00 1197 Decal Duplex Tray Removal 89 35 AA00 1197 Decal Duplex Tray Removal 115 10 AA00 1198 Decal Paper Tray Removal 31 16 AA00 1198 Decal Paper Tray Removal 115 11 AA00 1199 Deca...

Page 126: ...ease Wire 79 2 AA05 1015 Wire Pick up Roller 33 44 AA06 0099 Cleaning Blade Spring 55 13 AA06 0146 Spring 73 9 AA06 0257 Spring Bottom Plate Clutch 93 14 AA06 0310 Turn Gate Spring 93 2 AA06 0313 Pick up Pressure Spring 33 12 AA06 0314 Stopper Spring 33 22 AA06 0315 Upper Guide Spring 45 19 AA06 0316 Lower Guide Spring 45 16 AA06 0318 Fusing Lock Spring 59 23 AA06 0319 Release Spring 31 22 AA06 03...

Page 127: ... Shaft 39 4 AA14 3025 Stepped Screw M3 93 4 AA14 3062 Shoulder Screw M4 87 14 AA14 3070 Shoulder Screw M2x2 13 2 AA14 3120 Stepped Screw M3x3 89 9 AA14 3288 Stepped Screw 31 33 AA14 3293 Gear Shaft 47 15 AA14 3300 Stepped Screw M3x4 85 17 AA14 3301 Stepped Screw M3x4 59 29 AA14 3307 Stepped Screw M3x4 91 27 AA14 3313 Stepped Screw M5x7 47 24 AA14 3315 Knob Exit A088 65 6 AA14 3358 Stepped Screw M4...

Page 128: ...A15 0259 Seal 0 1x30x75 59 16 AA15 0293 Seal 0 1x18x275 23 26 AA15 1096 Seal Supply Roller Front 53 21 AA15 1099 Seal 2x14x37mm 53 1 AA15 1099 Seal 2x14x37mm 53 3 AA15 1100 Seal 2x28x320mm 53 9 AA15 1102 Seal 2x7x420mm 53 25 AA15 1104 Seal Toner Supply Roller 53 16 AA15 1105 Front Blade Seal 55 15 AA15 1106 Rear Blade Seal 55 18 AA15 1109 Seal 5x16x5 55 25 AA15 1148 Seal Supply Roller Rear 53 15 A...

Page 129: ...AB03 0273 Timing Pulley 20Z 79 20 AB03 0273 Timing Pulley 20Z 79 26 AB03 0274 Drum Pulley 80Z 77 24 AB03 0276 Tightner Pulley 79 10 AB03 0281 Timing Pulley 28Z 39 2 AB03 0289 Timing Pulley 15Z 41 12 AB03 0401 Tightner Pulley 79 39 AB03 2042 Wire Pulley 33 46 AB03 3047 Timing Pulley 25 40Z 77 6 AB04 0013 Spring Clutch Tray Bottom Plate 93 12 AB04 1011 Bushing 6x18x10 33 31 AB04 2004 Clutch Sleeve T...

Page 130: ...F02 5015 Turn Gate 93 24 AF03 0019 Pick up Roller 33 8 AF03 1009 Paper Feed Roller 93 42 AF03 1019 Feed Roller 33 7 AF03 2017 Separation Roller 91 31 AF03 2019 Separation Roller 33 35 AF04 0036 Lower Exit Roller 67 10 AF04 0045 Exit Roller 63 7 AF04 3028 Copy Tray Slid 11 18 AG02 1008 Original Holder 17 6 AG05 0050 Fusing Knob 61 4 AG05 0051 Registration Roller Knob 11 15 AG05 0058 Relay Roller Kn...

Page 131: ...al Scale LT 13 9 A006 1266 Decal Scale LT 15 24 A006 1266 Decal Scale LT 115 20 A006 1268 Decal Scale A4 13 9 A006 1268 Decal Scale A4 15 24 A006 1268 Decal Scale A4 115 20 A006 1352 Key Counter Cover 13 17 A006 1352 Key Counter Cover 75 12 A006 1396 Decal Lock 11 17 A006 1396 Decal Lock 115 21 A006 1398 Decal Unlock 11 12 A006 1398 Decal Unlock 115 22 A006 1724 Rear Spring Plate 19 3 A006 1724 Re...

Page 132: ...y 71 2 A069 1090 Base Cover Plate 79 34 A069 1092 Right Support Plate 69 1 A069 1093 Frame Support Plate 79 38 A069 1095 Base Cover 69 7 A069 1102 Clutch Case Development Drive 77 23 A069 1106 Belt Tightener Main Drive 77 11 A069 1107 Belt Tightener Paper Feed 77 13 A069 1108 Support Bracket Fusing Drive 77 12 A069 1109 Fusing Drive Bracket 79 3 A069 1111 Fusing Drive Bushing 77 17 A069 1116 Posit...

Page 133: ...s Shutter 23 5 A069 1801 Large Lens Cover 21 8 A069 1803 ADS Sensor Bracket 21 3 A069 1805 Upper Seal Lens Cover 21 26 A069 1811 Lens Motor Bracket 23 23 A069 1821 Motor Bracket 3rd Scanner 23 18 A069 1831 3rd Scanner Bracket 21 17 A069 1832 3rd Scanner Lack 21 16 A069 1834 3rd Scanner Shoe 21 10 A069 1835 Spring Plate A 19 1 A069 1835 Spring Plate A 21 14 A069 1836 3rd Scanner Shutter 21 15 A069 ...

Page 134: ...per Registration Stay 33 2 A069 2589 Transfer Entrance Guide 45 2 A069 2610 Upper Relay Guide 45 20 A069 2614 Lower Relay Guide 45 15 A069 2620 Pick up Solenoid 33 20 A069 2621 Pick up Solenoid Bracket 33 19 A069 2627 Support Arm 33 13 A069 2628 Arm Support Link 33 23 A069 2631 Fixed Plate By pass Feed Table 29 14 A069 2638 Rack Manual Feed Table 29 15 A069 2645 Seal 0 2x16x47 29 8 A069 2648 By pa...

Page 135: ...069 2820 Friction Pad Ass y 31 25 A069 2822 Cover Plate 31 26 A069 2823 Rail Guide Roller 71 13 A069 2824 Large Positioning Bracket 43 38 A069 2824 Large Positioning Bracket 71 1 A069 2826 Small Positioning Bracket 43 10 A069 2832 Seal 0 2x36x46 87 18 A069 2841 Lift Motor Bracket 35 5 A069 2846 Tray Guide Bracket 69 10 A069 2852 By pass Feed Table Ass y A4 29 4 A069 2861 By pass Feed Table 29 7 A0...

Page 136: ... A069 4163 Exit Guide Bracket 67 3 A069 4164 Exit Sensor Stay 67 15 A069 4168 Front Magnet Holder A088 65 10 A069 4169 Rear Magnet Holder 65 8 A069 4189 Board Angle 59 27 A069 4235 Receiving Tray 11 27 A069 5131 RAM Board 83 4 A069 5131 RAM Board 97 3 A069 5131 RAM Board 99 A069 5161 Scanner Motor Control Board 85 3 A069 5205 Scanner Drive Motor DC24V 25 11 A069 5206 3rd Scanner Drive Motor DC24V ...

Page 137: ...er Plate Duplex Tray A088 69 16 A070 4928 Tray Lock Lever Duplex 87 13 A070 5337 Harness Exit Cover Switch A088 67 14 A073 1278 Decal Adding Toner 11 21 A073 1278 Decal Adding Toner 115 25 A073 1326 Decal Removing Misfeed Paper D 11 24 A073 1326 Decal Removing Misfeed Paper D 115 26 A073 1327 Decal Removing Misfeed Paper A B A085 A087 11 22 A073 1327 Decal Misfeed Removal A B A085 A087 115 2 A073 ...

Page 138: ...om Plate Clutch 93 13 A334 4707 Stopper Bottom Plate Clutch 13 24 A334 4710 Bracket Paper End Sensor 93 35 A334 4720 Duplex Stay 91 10 A334 4724 Turn Gate Solenoid 93 6 A334 4726 Turn Gate Hook 93 3 A334 4727 Turn Gate Link 93 5 A334 4730 Upper Guide Plate 91 14 A334 4740 Spring Plate 91 13 A334 4750 Lower Guide Plate 91 24 A334 4753 Paper Flatenner 91 25 A334 4755 Guide Plate 91 22 A334 4765 Guid...

Page 139: ...9 A335 4291 Lift Stay 39 10 A335 4320 Right Stay 39 12 A335 4322 Left Stay 39 13 A335 4341 Tray Bottom Plate 39 14 A335 4346 Front Support Plate 39 20 A335 4347 Rear Support Plate 39 21 A335 4348 Upper Support Plate 39 22 A335 4351 Guide Roller 39 18 A335 4352 Timing Belt Clump 39 19 A335 4353 Upper Stay 37 17 A335 4354 Guide By pass Feed Table 37 18 A335 5110 LCT Operation Board 37 7 A335 5210 LC...

Page 140: ...lancer Spring 17 13 5215 2840 Pin 4 x 115 mm 17 10 5215 2842 Right Spring Platen Cover 17 17 5215 2843 Left Spring Platen Cover 17 16 5215 2844 Slide Supporter 17 7 5215 2845 Plate Magnet 17 4 5215 2846 Platen Base 17 18 5215 2847 Base Holder 17 5 5215 3295 Hopper Filter 53 7 5215 3327 Shaft Agitator 53 11 5215 3328 Joint Hopper 53 13 5215 3347 Spring Gear 53 12 5215 3394 Seal 12x406mm 53 30 5215 ...

Page 141: ...Key Plate Tray Button 37 8 5446 6334 Front Spring Tray Pressure A088 71 10 5447 2678 Slip Clutch Cover 33 34 5447 2681 Snap Ring 33 6 5447 2681 Snap Ring 43 28 5447 2681 Snap Ring 93 15 5447 2697 Cylindrical Spring 33 32 5447 2768 Stepped Screw M3 91 17 5447 2769 Stepped Screw 61 23 5447 2804 Gear 15T 35 16 5447 2805 Slide Pin Holder 35 3 5447 2806 Gear 15T 40T 35 15 5447 2812 Slide Gear Spring 35...

Page 142: ...314 0060W Philips Pan Head Screw M4x6 73 101 0314 0060W Philips Pan Head Screw M4x6 79 105 0314 0060W Philips Pan Head Screw M4x6 89 106 0314 0060W Philips Pan Head Screw M4x6 91 105 0314 0080W Philips Pan Head Screw M4x8 17 102 0314 0080W Philips Pan Head Screw M4x8 25 105 0314 0080W Philips Pan Head Screw M4x8 49 100 0314 0080W Philips Pan Head Screw M4x8 51 101 0314 0080W Philips Pan Head Screw...

Page 143: ... Tapping Screw M4x8 35 100 0434 0080W Tapping Screw M4x8 37 103 0434 0080W Tapping Screw M4x8 39 105 0434 0080W Tapping Screw M4x8 41 103 0434 0080W Tapping Screw M4x8 43 100 0434 0080W Tapping Screw M4x8 45 103 0434 0080W Tapping Screw M4x8 49 103 0434 0080W Tapping Screw M4x8 59 101 0434 0080W Tapping Screw M4x8 65 104 0434 0080W Tapping Screw M4x8 67 100 0434 0080W Tapping Screw M4x8 69 101 043...

Page 144: ...4 87 110 0720 0040E Retaining Ring M4 89 104 0720 0040E Retaining Ring M4 91 101 0720 0040E Retaining Ring M4 93 101 0720 0050E Retaining Ring M5 53 104 0720 0050E Retaining Ring M5 63 104 0720 0050E Retaining Ring M5 65 106 0720 0060E Retaining Ring M6 27 103 0720 0060E Retaining Ring M6 33 101 0720 0060E Retaining Ring M6 35 102 0720 0060E Retaining Ring M6 39 102 0720 0060E Retaining Ring M6 43...

Page 145: ... 77 104 0951 4020W Philips Screw With Flat Washer M4 47 106 0951 5014W Philips Screw W H Flat Washer M5x14 17 106 0952 3006W Philips Screw M3x6 47 102 0952 3006W Philips Screw M3x6 57 101 0952 3006W Philips Screw M3x6 85 106 0953 4008M Screw M4x8 13 104 0960 3006W Philips Flange Screw M3x6 11 103 0960 3008W Philips Flange Screw M3x8 29 102 0960 4006W Philips Flange Screw M4x6 43 105 0960 4006W Phi...

Page 146: ...ocket Mate N Lock 103 155 1100 1247 Terminal 101 111 1100 1247 Terminal 103 113 1100 1249 Receptacle Terminal 103 114 1100 1249 Receptacle Terminal 105 103 1100 1249 Receptacle Terminal 107 104 1100 1249 Receptacle Terminal 109 105 1100 1259 Socket Mate N Lock 103 115 1100 1322 Contact 103 116 1100 1322 Contact 109 106 1100 1327 Contact 103 117 1100 1328 Contact 103 118 1100 1339 Pin Contact 101 1...

Page 147: ...8 Connector 3P 101 115 1102 1912 Connector 4P 103 141 1102 1919 Connector 11P 83 106 1102 1919 Connector 11P 103 143 1102 1940 Connector 4P 103 144 1102 2979 Connector 14P 99 101 1102 2986 Connector 14P 97 102 1102 3203 Contact 101 127 1102 3983 Connector 24P 103 146 1102 4124 Connecter 1P 107 103 1102 4205 CT Header 6P 97 103 1102 4209 CT Header 10P 97 104 1102 4293 Connector 64P 103 147 1102 496...

Page 148: ...27 105 1105 0200 Clamp 79 106 1105 0201 Harness Clamp 35 106 1105 0201 Harness Clamp 69 106 1105 0201 Harness Clamp 79 109 1105 0229 Clamp 69 107 1105 0229 Clamp 75 101 1105 0229 Clamp 79 107 1105 0231 Clamp 91 108 1105 0231 Clamp 93 108 1105 0262 Wire Saddle 75 104 1105 0262 Wire Saddle 79 108 1105 0287 Wire Saddle 27 112 1105 0287 Wire Saddle 69 108 1106 0193 Bushing 7 9mm 41 109 1106 0200 Bushi...

Page 149: ...0V 97 157 1604 1728 Capacitor 100uF 10V 97 158 1604 1958 Capacitor 100uF 50V 97 159 1605 0192 Capacitor 470pF 50V 97 160 1605 0222 Capacitor 0 033uF 50V 97 161 1605 0636 Capaciter 0 1uF 97 162 1606 1139 Capaciter 0 01uF 20 97 163 1606 1454 Capacitor 0 01uF 25V 99 108 1607 0551 Inductor BLM32A07PB 97 164 1610 0286 Capacitor 100pF 50V 10 97 165 1610 1162 Resistor 82 Ω 1 4W 5 97 166 1630 2102 Resisto...

Page 150: ...147 1632 5231 Resistor 5 23k Ω 1 97 188 1632 6191 Resistor 6 19K Ω 1 8W 1 97 189 Part No Description Description Paper and Index No Paper and Index No Part No ...

Page 151: ...ice this copier This package contains the following A table of contents for the modified manual A list of the major differences between this copier and the base copier A set of selected pages to replace the ones in the base copier s manual including revised specifications SP mode tables An explanation of this model s new functions An explanation of DF s A497 new function A section for the new sort...

Page 152: ...pleted Keep hands away from the mechanical and the electrical components to avoid any injury 6 If the start key is pressed before the copier completes the warm up period Ready indicator starts blinking keep hands away from the mechanical and the electrical components as the copier starts making copies as soon as the warm up period is completed 7 The inside and the metal parts of the fusing unit be...

Page 153: ...s battery Used batteries must be handled in accordance with local regulations SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL 1 Do not incinerate the toner cartridge or the used toner Toner dust may ignite suddenly when exposed to open flame 2 Dispose of used toner developer and organic photoconductor according to local regulations These are non toxic supplies 3 Dispose of replaced parts in accordance wi...

Page 154: ...SECTION 1 OVERALL MACHINE INFORMATION ...

Page 155: ...on for A074 6 Shadows from pasted originals Erased for normal thickness paper Not erased 7 Combine 2 originals mode Standard with ARDF Not applicable Operation panel 8 Guidance display Not applicable Standard for A074 9 Beeper Not applicable Standard 10 Indicators LEDs The following indicators are not applicable Color copy full size overlay ten keys zoom enlarge reduce special features editor boar...

Page 156: ...sec 19 Grid bias voltage Vgi for image 715 V Vgp for sensor pattern 480 V Vgi for image 745 V Vgp for sensor pattern 500 V 20 Separation corona current ac 190 µA ac 210 µA 21 VG correction Applies another 20 V to the grid bias voltage after the drum has rotated 2 44 75 and 105 hours Applies another 20 V to the grid bias voltage after the drum has rotated 2 37 63 and 88 hours 22 Exposure lamp volta...

Page 157: ...ing bin type Option Not applicable 30 Auto reverse document feeder A497 Option with combine 2 originals mode The software has been changed The ARDF with the new ROM has a different destination code The ARDF can be also installed on other current models A069 A073 A074 A053 Option 10 July 1992 MAJOR DIFFERENT POINTS FROM THE BASE COPIER A069 A073 A074 1 3 ...

Page 158: ...and B5 81 2 x 11 sideways Maximum A3 11 x 17 Minimum B5 8 x 13 Copy Paper Weight 250 sheet paper tray and 1000 sheet large capacity tray 52 128g m2 14 34lb By pass feed table 52 157g m2 14 42lb Duplex 64 105 g m2 17 28lb Reproduction Ratios 4 Enlargement and 6 Reduction A4 A3 Version LT LDG Version Enlargement 200 141 122 115 200 155 129 121 Full Size 100 100 Reduction 93 82 75 71 65 50 93 85 77 7...

Page 159: ...mm 23 6 542 mm 574 mm 21 3 22 6 Type 3 871 mm 1075 mm 34 3 42 2 600 mm 23 6 542 mm 574 mm 21 3 22 6 When the by pass feed table is opened the copy tray is extended and the platen cover is installed Weight Copier only Without the optional platen cover Approximately 2 kg 4 4 lb Type 1 approximately 77 kg 169 4 lb Type 2 approximately 87 kg 191 4 lb Type 3 approximately 83 kg 182 6 lb Zoom From 50 to...

Page 160: ...ximately 250 sheets Large capacity tray approximately 1000 sheets Toner Replenishment Black cartridge exchange 320 g cartridge Optional Equipment Platen cover Document feeder Paper tray unit with one paper tray Paper tray unit with three paper trays 10 bin micro sorter 20 bin mini sorter 20 bin midi sorter 20 bin sorter stapler Sorter adapter needed when installing the mini or midi sorter or the s...

Page 161: ...AY 250 DUPLEX 250 LOWER TRAY 250 250 250 LCT 1 000 1 000 3 2 OPTIONAL EQUIPMENT ARDF A497 MENU READER A952 20BIN SORTER A411 20BIN SORTER A423 SORTER STAPLER A374 SORTER ADAPTER A328 10BIN SORTER A327 PAPER TRAY UNIT PAPER TRAY UNIT A325 A326 10 July 1992 MACHINE CONFIGURATION 1 7 ...

Page 162: ...TER 10 BIN A327 o o o 20 BIN MINI A423 o o o 20 BIN MIDI A411 o o o 20 BIN STAPLER A374 o o o DOCUMENT FEEDER ARDF A497 o o o MENU READER A952 o o o NOTE The sorter adapter is required to install the 20 bin mini sorter 20 bin midi sorter or sorter stapler The I F board is required to install the sorter stapler or Menu Reader MACHINE CONFIGURATION 10 July 1992 1 8 ...

Page 163: ...SECTION 2 DETAILED SECTION DESCRIPTION ...

Page 164: ...l might appear on copies For figure 2 the proportion of the light intensity A B reflected from the main and sub reflectors is almost 50 to 50 Under this condition both the lead and trail edges of the pasted parts of an original will not make shadows Shadows might appear not only at the lead edge but also the inner side of the pasted parts The light intensity of the exposure lamp at both ends is sl...

Page 165: ...SECTION 3 INSTALLATION ...

Page 166: ... 4 Counter Set Key 17 machine only 1 5 Installation Procedure 1 6 Operating Instructions Except 27 machine 1 7 New Equipment Condition Report 17 19 27 29 machine only 1 8 Envelope for NECR 17 machine only 1 9 User Survey Card 17 machine only 1 10 Equipment Quality Report 15 machine only 1 10 July 1992 COPIER INSTALLATION 3 1 ...

Page 167: ...ocation Proper reinstallation of the shipping retainers is required in order to avoid any transport damage 1 Remove the 12 strips of tape A as shown 2 Open the front door and remove 4 strips of tape B as shown 3 Pull out the duplex tray C and remove the 2 strips of tape D and 3 sheets of paper E duplex machine only A A A B C D E A COPIER INSTALLATION 10 July 1992 3 2 ...

Page 168: ... side of the left scale bracket 6 Reinstall the left scale 7 Remove the left optics cover C 1 screw 8 Remove the scanner lock plate D 1 screw and reinstall the left optics cover 9 Remove the shipping retainer E holding the ozone filter The retainer is taped on the upper exit cover E C D A B 10 July 1992 COPIER INSTALLATION 3 3 ...

Page 169: ...velopment unit with your left hand pull the unit all the way out Place the unit on a clean sheet of paper 12 Separate the toner supply unit from the development unit 3 screws 13 Pour one pack of black developer E into the development unit while turning the development roller knob F counterclockwise This will distribute the developer inside the unit 14 Remount the toner supply unit on the developme...

Page 170: ...um 17 Remove the drum protective sheet C from the development unit opening CAUTION To avoid damaging the pick off pawls remove the drum protective sheet by pulling the lower side as shown in the figure 18 Turn the cleaning unit release lever clockwise to the set position 19 Remove the cleaning blade lock plate D 20 Reset the transfer separation corona unit E D E A B C 10 July 1992 COPIER INSTALLAT...

Page 171: ...sition after the development unit is set 22 Shake the toner cartridge D well from side to side While pushing the toner cartridge in insert it halfway into the holder with the seal E up 23 As you peel off the seal insert the cartridge completely While pushing the toner cartridge in turn it counterclockwise until it stops 24 Slide out the charge corona unit F until it is fully extended and push it b...

Page 172: ...ough the hole of the top cover and install the optional platen cover 2 screws 29 Couple the platen cover sensor connector E 3P white with the copier and reinstall the rear cover 30 Stick the symbols explanation decal F on the top cover as shown If the ARDF will be installed stick the decal on the corresponding position of the ARDF 31 If local voltage is 230 V or 240 V perform the voltage change pr...

Page 173: ... the number keys after confirming that the auto image density indicator and the copy counter number 0 are blinking 34 Enter 65 using the number keys and then press the enter key The copier starts the black developer initialization and this lasts about 5 minutes 35 Enter 66 using the number keys and press the enter key Press 1 then the enter key The copier performs the drum initial setting COPIER I...

Page 174: ...ier performs ID V sensor adjustments 37 Enter 48 using the number keys and then press the enter key twice 38 Set the test chart on the exposure glass 39 Make a full size copy at the manual image density level 4 center after the copier has warmed up 10 July 1992 COPIER INSTALLATION 3 9 ...

Page 175: ... If the image density is too light decrease the setting NOTE The data can be set between 50 and 75 in 0 5 steps 3 Press the enter key and then make a copy 4 Confirm if the image density is correct or not If not repeat the above steps from 1 to 3 NOTE The initial exposure lamp voltage must be adjusted in this step If the adjustment is done after step 43 the machine performs the initial VL pattern d...

Page 176: ...al check during the copy cycle When the copy cycle is finished the copier performs the VL sensor initial check by lighting the exposure lamp at the home position 45 Check the machine operation and copy quality 46 Tell the customers that this copier sometimes keeps turning on the exposure lamp at the home position when copy jobs are finished the same phenomenon as in step 44 This is normal for this...

Page 177: ...ed before starting the following procedure 1 Remove the rear cover remove 2 screws and loosen 2 screws 2 Swing out the dc power supply board assembly A 1screw 3 Disconnect the 1P connector B of the ac main harness and reconnect it to the appropriate voltage connector C of the main transformer NOTE Each 1P connector of the main transformer has its voltage rating printed on it 4 Reassemble the copie...

Page 178: ...SECTION 4 SERVICE TABLES ...

Page 179: ...panel turn on the main switch 2 Enter 99 and press the Enter key 3 Enter 1 and press the Enter key 4 Enter the factory set values in the following SP modes 40 Jogger span Duplex machine only 41 Lead edge erase 42 Registration 43 Vertical magnification 44 Horizontal magnification 45 Duplex magnification Duplex machine only 47 Focus adjustment 50 Lens error correction 62 Grid reference voltage 161 G...

Page 180: ...cedure 2 3 Enter the grid voltage correction data in SP62 referring to the label on the high voltage supply board CTBG 4 Adjust the transfer corona current if the high voltage supply board CTBG is not the original one 5 Adjust the separation corona current if the high voltage supply board D is not the original one 10 Enter the SP mode by access procedure 2 While pressing both 1 and 3 on the operat...

Page 181: ... SP2 is set press the start key to start free run operation Before pressing the start key you can select any other SP mode in which copying is possible p mark SPNo Start key 3 Free Run Reset p Resets the copier from free run mode 4 Forced Start p Copies can be made before being the copier is warmed up Copy quality and paper transport are not assured 5 Lamp OFF p Copies are made with exposure lamp ...

Page 182: ... tray holding the same size paper when paper runs out 0 Yes 1 No 19 ID Mode Specifies whether the copier defaults to ADS or manual ID mode when the main switch is turned on 0 ADS 1 Manual 20 LCT Priority Sets the feed station priority to LCT or the 1st tray 0 On 1 Off 21 APS Priority Copier Specifies whether the copier defaults to APS or manual mode when the main switch is turned on 0 APS 1 Manual...

Page 183: ...trol mode changes 0 Yes Zero cross 1 No Phase 30 Black Toner Supply Mode Selects black toner supply mode See SP 31 SP32 for toner supply amount 0 Detect Mode 1 Fixed Mode 31 Black Toner Supply Ratio Detect Mode Determines how much toner is supplied in detect mode 0 15 1 7 2 30 3 60 32 Black Toner Supply Ratio Fixed Mode Determines how much toner is supplied in fixed mode 0 7 0 1 3 5 2 10 5 3 14 0 ...

Page 184: ... center erase margin in Erase Center mode Program key 6 or Erase Center And Edge mode Program key 8 0 20 mm 1 10 mm 2 15 mm 3 25 mm 40 Jogger Span Adjusts the stop position of the jogger fences For type 2 copier only 0 5 mm per step max 4 0 mm to 3 5 mm 0 15 8 default 41 Lead Edge Erase p Adjusts lead edge erase margin 0 5 mm per step max 4 0 mm to 3 5 mm 0 15 8 default 42 Registration p Adjusts l...

Page 185: ...The exposure lamp main motor fusing exhaust fan and exhaust blower turn on for 10 seconds when the Enter key is pressed Press the key to check the target lamp voltage including corrections This value always includes 0 5Vcorrection because of the light intensity control program regarding the first copy cycle Press the C S key to turn this mode off Do not repeat more than 5 times to avoid overheatin...

Page 186: ...e correct value When the high voltage supply board CTBG is replaced set the data using SP62 704 65 Black Developer Initialize Agitates new black developer for about 5 minutes Press the start key to begin operation This mode must be performed when new developer is put in The three digit indicator shows the remaining time of the operation in seconds 66 Drum Initialize Used to set new drum condition ...

Page 187: ...orter adapter 72 Option Paper Tray Unit Enables paper tray unit operation 0 No 1 Yes 73 LCT Paper Size Selects paper size for the LCT For type 2 and type 3 only 0 A4 1 B5 2 LT 76 Sorter Max Sets the sort stack quantity limit 0 No No sort stack limit 1 Yes Sort stack amount is limited the amount depends on which sorter is installed 0 No 1 Yes 77 ADF Auto Feed Out Duplex mode Sets the copier to ejec...

Page 188: ... 1202 1303 1404 1505 1606 1707 1808 1909 2010 2111 2212 2313 2414 2515 2616 2717 2818 2919 3020 0 No 1 Yes 91 User code Counter Check Displays the contents of each user code counter use the and up and down keys to select user code The last two digits of the user code are displayed in the copy counter User counters count from 0 to 999999 Press key to display the first three digits in the three digi...

Page 189: ... Time in hours Motor Count Press the key to display the first three digits in the three digit indicator Hold down the key to display the second three digits Drum Count Hold down the 0 key to display the first three digits in the three digit indicator Hold down the 0 keys to display the second three digits NOTE Drum counter can be cleared by using SP66 101 Copy Original Counter Displays the total n...

Page 190: ...er of copies made in enlargement mode 110 Supply Counter Displays the total number of copies made by using the following supplies Use the up down keys to select the desired number Press the key to enter this mode When the desired number displayed in the copy counter is selected by using the keys the first three digits are displayed in the three digit indicator Hold down the key to display the seco...

Page 191: ...ree digits 130 1 Jam Total Counter Displays the total number of paper jams excluding original jams in the ADF SP130 14 130 2 Jam 1st Feed Counter Displays the total number of paper jams from the upper paper tray Type 1 3 130 3 Jam 2nd Feed Counter Displays the total number of paper jams from the lower paper tray 130 4 Jam 3rd Feed Counter Displays the total number of paper jams from the upper tray...

Page 192: ... 24 51 mm 152 Paper Feed Timing 2nd 5th tray p Adjusts the registration paper buckle amount for the paper fed from the lower paper tray or the paper tray unit The data value is the approximate distance that the paper is fed after the lead edge is detected by the registration sensor 0 27 mm 6 33 mm 7 34 mm 8 35 mm 24 51 mm 153 Paper Feed Timing Duplex p Adjusts the registration paper buckle amount ...

Page 193: ...ee digit indicator The PWM value can be changed by using the up down keys 164 D CH DC PWM Displays the high voltage supply board D dc separation dc corona in the three digit indicator The PWM value can be changed by using up down keys 165 ID sensor PWM Output Check Displays the ID sensor output in the three digit indicator When entering this mode by pressing the key the adjusted PWM value for the ...

Page 194: ...ng this mode by pressing the key the adjusted gain data for the ADS sensor is displayed Hold down the start key to display the ADS sensor output voltage Do not hold down the start key too long about 20 sec otherwise E12 comes up Gain data can be changed by using the up down keys SERVICE PROGRAM MODE 10 July 1992 4 16 ...

Page 195: ... switch or signal press the key twice and repeat from step 3 Input No Sensor Switch Signal Data 0 1 1 Registration sensor S11 Paper not detected Paper detected 2 Fusing exit sensor S14 Paper not detected Paper detected 4 Upper relay sensor S10 Paper not detected Paper detected 5 Lower relay sensor S9 Paper not detected Paper detected 6 Tray relay sensor 1 Paper tray unit S9 Paper not detected Pape...

Page 196: ...Sorter bin lift sensor Off On 36 Sorter cover switch Cover open Cover closed 37 Sorter entrance sensor Paper not detected Paper detected 39 By pass feed table sensor S1 Table closed Table open 40 By pass feed paper end sensor S4 Paper detected Paper not detected 41 Duplex unit set detection Off On 42 Duplex paper end sensor S24 Paper not detected Paper detected 43 Duplex turn gate sensor S23 Paper...

Page 197: ... 2 Paper size Data A3 11 X 17 1 B4 3 F 81 2 X 14 2 A4 lengthwise 6 A4 sideways 81 2 X 11 lengthwise 4 B5 lengthwise 12 B5 sideways 81 2 X 11 sideways 8 Table 3 Original size Data A3 7F 11 X 17 6F B4 3F A4 Lengthwise E A4 sideways 8 1 2 X 11 lengthwise 7 B5 lengthwise 6 B5 sideways 8 1 2 X 11 sideways 3 A5 lengthwise 0 A5 sideways 2 No original 0 Original Width Sensors 1 5 3 4 2 Original Length Sen...

Page 198: ...ain motor 5 Press the Clear Stop key to turn off the electrical component 6 To turn on another electrical component repeat from step 3 CAUTION The motors keep turning in this output mode regardless of upper or lower limit sensor signal Do not keep the electrical component on for a long time to prevent any mechanical or electrical damage Output No Electrical component 1 Main motor M1 2 High voltage...

Page 199: ...39 Tray lock solenoid 3 Paper tray unit SOL3 40 Pick up solenoid SOL2 41 Upper tray lift motor Up M3 42 Lower tray lift motor Up M4 43 Tray lift motor 1 Paper tray unit Up M1 44 Tray lift motor 2 Paper tray unit Up M2 45 Tray lift motor 3 Paper tray unit Up M3 46 Upper tray lift motor Down M3 47 Lower tray lift motor Down M4 48 Tray lift motor 1 Paper tray unit Down M1 49 Tray lift motor 2 Paper t...

Page 200: ...ressure B rollers every 160K if necessary Then lubricate the roller shaft C and bearings D with BARRIERTA L55 2 grease 2 Fusing Drive Gears Replace the fusing drive gears E every 160K Then lubricate the gears E F and their shafts G with Grease G501 D A C D D B D C G E F E E PREVENTIVE MAINTENANCE SCHEDULE 10 July 1992 4 22 ...

Page 201: ...SECTION 5 REPLACEMENT AND ADJUSTMENT ...

Page 202: ...or reflectors will be affected by heat from the lamp and will cause discoloration 1 Turn off the main switch 2 Remove the exposure glass See Exposure Glass Removal 3 Move the first scanner A to the cutout position at the front and rear frames B See illustration 4 Remove the adjusting plates C loosen 5 screws 5 Remove the rear terminal bracket D 1 screw C C B A B 10 July 1992 OPTICS 5 1 ...

Page 203: ... exposure lamp voltage setting X by SP48 10 Check the target lamp voltage Y by SP51 press the key for reading 11 Perform forced VL detection SP70 Y X times 12 Check the target lamp voltage by SP51 13 Perform forced VL detection SP70 a few more times 14 Check the target lamp voltage Z by SP51 again and confirm that the voltage Z is the same as that in step 12 If not repeat the forced VL detection S...

Page 204: ...he red button C when the exposure lamp area cools 1 Turn off the main switch 2 Remove the exposure glass 3 Remove the exposure lamp leads A from the terminals on both sides of the thermoswitch B 4 Remove the thermoswitch from the bracket 2 screws and replace it A B A C 10 July 1992 OPTICS 5 3 ...

Page 205: ...r D 6 screws Rear cover E loosen 2 screws and remove 2 screws Right upper cover F 4 screws Front upper cover G 3 screws Operation panel H 4 screws and 2 connectors Left scale bracket I 2 screws 1 connector and 1 harness clamp Lens cover J 2 screws and 1 connector The rest of procudure is the same as for A069 A073 A074 C H B D A E I G J F OPTICS 10 July 1992 5 4 ...

Page 206: ...emove the tension spring A 4 Remove the support bracket B 3 screws and gear C 5 Remove the toner supply clutch assembly D 2 screws 1 wire saddle and 1 connector 6 Remove the toner supply clutch E 1 E ring NOTE When reinstalling the clutch make sure that the clutcch stopper groove engages with the stopper F A B C D E F 10 July 1992 TONER SUPPLY 5 5 ...

Page 207: ...A 1 screw 3 Hold the fusing unit cover B while pushing the release lever C and pull out the fusing unit D until it stops 4 Remove the fusing unit completely while pushing the release lever NOTE Support the bottom of the fusing unit before completely removing it D B C A FUSING 10 July 1992 5 6 ...

Page 208: ... Removal 2 Remove the fusing unit cover A 1 shoulder screw 1 screw 3 Remove the harness cover B 1 screw and disconnect the fusing lamp harness C 1 connector each 4 Remove the front lamp holder D 1 screw and replace the fusing lamp E E D C B A C B 10 July 1992 FUSING 5 7 ...

Page 209: ...r holder F 1 screw 6 Remove the front and rear C rings G 4 gears H I J K front fusing bearings L and then remove the hot roller M NOTE a Lubricate the roller shaft N with BARRIERTA L55 2 grease b Peel off 3 cm 1 inch from both ends of the protective sheet and install the hot roller c Before setting the pressure springs remove the rest of the protective sheet d Lubicate the fusing drive gears and t...

Page 210: ... and swing the pressure arms D as shown 5 Slide the bearing E 1 E ring to front and remove the pressure roller assembly F 6 Remove the rear bearing G 1 E ring and the fusing knob H 1 screw 7 Replace the pressure roller I NOTE When installing a new pressure roller a Lubricate the roller shaft J and bearings E G with BARRIERTA L55 2 grease A C B D E F J H E I G 10 July 1992 FUSING 5 9 ...

Page 211: ...unit see Fusing Unit Removal 2 Lower the fusing exit assembly A 3 Remove the pawl pressure springs B and pawl release springs C 4 Remove the fusing pawl bracket D 2 screws 5 Remove the fusing stripper pawls E and replace D C A B E C B FUSING 10 July 1992 5 10 ...

Page 212: ... shoulder screw 1 screw 3 Lower the fusing exit assembly B and remove the harness cover C 1 screw 4 Disconnect the thermofuse harness D from the fusing harness E and the fusing lamp lead F 5 Remove the thermofuse holder G 1 screw then remove the thermofuse harness 2 plate clamps A F B D C E D G 10 July 1992 FUSING 5 11 ...

Page 213: ...Remove the fusing unit cover A 1 shoulder screw 1 screw 3 Lower the fusing exit assembly B and remove the harness cover C 1 screw 4 Disconnect the thermistor harness D from the fusing harness E 5 Remove the fusing thermistor F 1 screw 2 plate clamps A F B C D E FUSING 10 July 1992 5 12 ...

Page 214: ...ontrol Adjust the side to side light intensity based on the intensity at the rear side to maintain proper VL correction If it is necessary to adjust light intensity at the rear do it before VL initial detection before exiting SP mode and after doing SP66 1 Clean the optics components and the charge corona wire 2 Place a test chart on the exposure glass and make an A3 11 x 17 copy 3 If the side to ...

Page 215: ...wer supply board 4 Unhook the high voltage cables from the vacuum fan bracket A and disconnect the vacuum fan harness B 1 connector 5 Remove the vacuum fan bracket 2 screws 6 Remove the vacuum fan C 2 screws 7 Replace the ozone filter D NOTE The PM interval of this ceramic ozone filter is 400K copies A D C B OTHERS 10 July 1992 5 14 ...

Page 216: ...5 2 OPERATION PANEL REMOVAL 1 Remove the rear cover right upper cover and front upper cover 2 Remove the operation panel A 4 screws and 2 connectors A 10 July 1992 OTHERS 5 15 ...

Page 217: ...e machine 8 Plug in the power cord 9 While pressing both 1 and 3 on the operation panel number keys turn on the main switch in order to access the SP mode NOTE Release the number keys after confirming that the ADS indicator and the copy counter number 0 are blinking 10 Enter 62 grid voltage setting mode using the number keys and press the enter key 11 Enter the new grid voltage correction data lab...

Page 218: ...ower cord 2 Remove the rear cover 3 Disconnect the high voltage cable A and the harness B 2 connectors 4 Replace the high voltage supply board D C 3 locking supports 5 Adjust the separation corona current See Transfer and Separation Corona Current Adjustment B A C 10 July 1992 OTHERS 5 17 ...

Page 219: ... change the range on the digital multimeter If SP9 is active the multimeter may be damaged Be careful as high voltage is applied to the corona wires Special Tools The following special tools are required for the transfer and separation corona current adjustment P N A0069105 Drum shoe shaft P N 54429106 Drum shoe P N 54479104 Shoe adapter P N 54209507 Digital multimeter Preparation 1 Turn off the m...

Page 220: ...haft C 5 Install the drum shoe D and the shoe adapter at E the middle of the drum shaft 6 Install the drum shaft on the drum unit F as shown and secure the bearing holder G 2 screws NOTE Be careful not to injure your hand on the edge of the pick off pawls C D E B A F G 10 July 1992 OTHERS 5 19 ...

Page 221: ...er and shoe adapter leads as follows Positive multimeter lead D Current terminal A of the multimeter and the positive lead of the drum shoe Negative multimeter lead E Common terminal COM of the multimeter and the bearing holder F Negative drum shoe lead G Bearing holder ensuring the contact with the negative multimeter lead and the bearing holder 10 Reinstall the T S corona unit and actuate the fr...

Page 222: ...e pressing both 1 and 3 on the operation panel number keys turn on the main switch to access the SP mode 4 Enter 9 output check using the number key and then press the enter key 5 Enter 7 high voltage supply transfer corona 7 will blink in the three digit indicator 6 Press the start key and read the transfer corona current on the digital multimeter when it is stabilized 7 Press the clear stop key ...

Page 223: ...ber keys as follows To increase the corona current absolute value increase the PWM value To decrease the corona current absolute value decrease the PWM value NOTE You may use the following rule as reference Changing the PWM value by 16 will change the transfer corona current by about 1µA 11 Press the enter key 12 Repeat steps 4 to 11 until the proper transfer corona current is obtained 13 Turn off...

Page 224: ... on the main switch to access the SP mode 4 Enter 9 output check using the number key and then press the enter key 5 Enter 8 high voltage supply separation corona 8 will blink in the three digit indicator 6 Press the start key and read the separation ac corona current on the digital multimeter when it is stabilized 7 Press the clear stop key to turn off the separation corona current then the enter...

Page 225: ...ply separation corona 8 will blink in the three digit indicator 16 Press the start key and read the separation dc corona current on the digital multimeter when it is stabilized 17 Press the clear stop key to turn off the separation corona current then the enter key 18 If the separation dc corona current is out of the adjustment standard do the following steps 19 Enter 164 D CH DC PWM by using the ...

Page 226: ...1 until the proper separation dc corona current is obtained 23 Check the separation ac corona current again by repeating steps 2 to 7 to make sure that it is still within the adjustment standard 24 Turn off the main switch 10 July 1992 OTHERS 5 25 ...

Page 227: ...FT5233 5433 5733 SERVICE MANUAL ...

Page 228: ...pleted Keep hands away from the mechanical and the electrical components to avoid any injury 6 If the start key is pressed before the copier completes the warm up period Ready indicator starts blinking keep hands away from the mechanical and the electrical components as the copier starts making copies as soon as the warm up period is completed 7 The inside and the metal parts of the fusing unit be...

Page 229: ...s battery Used batteries must be handled in accordance with local regulations SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL 1 Do not incinerate the toner cartridge or the used toner Toner dust may ignite suddenly when exposed to open flame 2 Dispose of used toner developer and organic photoconductor according to local regulations These are non toxic supplies 3 Dispose of replaced parts in accordance wi...

Page 230: ...SECTION 1 OVERALL MACHINE INFORMATION ...

Page 231: ...11 sideways Maximum A3 11 x 17 Minimum B5 8 x 13 Copy Paper Weight 250 sheet paper tray and 1000 sheet large capacity tray 52 128g m2 14 34lb By pass feed table 52 157g m2 14 43lb Duplex and overlay 64 105 g m2 17 28lb Reproduction Ratios 4 Enlargement and 6 Reduction A4 A3 Version LT LDG Version Enlargement 200 141 122 115 200 155 129 121 Full Size 100 100 Reduction 93 82 75 71 65 50 93 85 77 74 ...

Page 232: ...0 mm 23 6 542 mm 574 mm 21 3 22 6 Type 2 871 mm 1075 mm 34 3 42 2 600 mm 23 6 542 mm 574 mm 21 3 22 6 Type 3 871 mm 1075 mm 34 3 42 2 600 mm 23 6 542 mm 574 mm 21 3 22 6 When the by pass feed table is opened the copy tray is extended and the platen cover is installed Weight Copier only Without the optional platen cover Approximately 2 kg Type 1 approximately 78 kg 172 0 lb Type 2 approximately 88 ...

Page 233: ... approximately 250 sheets Large capacity tray approximately 1000 sheets Toner Replenishment Black cartridge exchange 320 g cartridge Color manual exchange red blue green 60 g cartridge Optional Equipment Platen cover Document feeder Paper tray unit with one paper tray Paper tray unit with three paper trays 10 bin micro sorter 20 bin mini sorter 20 bin midi sorter 20 bin sorter stapler Sorter adapt...

Page 234: ... Color development unit Key counter Menu reader except for Europe A3 counter service part SPECIFICATIONS 12 February 1992 1 4 ...

Page 235: ...LOWER TRAY 250 250 250 LCT 1 000 1 000 2 2 OPTIONAL EQUIPMENT EDITOR A916 ARDF A497 MENU READER A952 20BIN SORTER A411 20BIN SORTER A423 SORTER STAPLER A366 SORTER ADAPTER A328 10BIN SORTER A327 PAPER TRAY UNIT PAPER TRAY UNIT A325 A326 Overall Information 12 February 1992 MACHINE CONFIGURATION 1 5 ...

Page 236: ...o o COLOR DEVELOPMENT UNIT A337 o o o NOTE1 The sorter adapter is required to install the 20 bin mini sorter 20 bin midi sorter or sorter stapler The I F board is required to install the sorter stapler or Menu Reader 1 The editing interface adapter is required to install the editor 2 The editing interface adapter can be installed independently when more precise erasing is desired NOTE 2 When insta...

Page 237: ...RE 1 DRUM CHARGE 9 QUENCHING 8 CLEANING ID V SENSORS PICK OFF PAWLS 7 PAPER SEPARATION 6 IMAGE TRANSFER 5 PRE TRANSFER LAMP 4 DEVELOPMENT COLOR 4 DEVELOPMENT BLACK 3 ERASE Overall Information 12 February 1992 COPY PROCESS AROUND THE DRUM 1 7 ...

Page 238: ...arged drum surface that will not be used for the copy image The resistance of the drum in the illuminated areas drops and the charge on those areas dissipates 4 DEVELOPMENT Positively charged toner is attracted to the negatively charged areas of the drum thus developing the latent image The positive triboelectric charge is caused by friction between the carrier and toner particles The development ...

Page 239: ...discharge is applied to the reverse side of the copy paper reducing the negative charge on the copy paper and breaking the electrical attraction between the paper and the drum Then the stiffness and the weight of the copy paper causes it to separate from the drum surface The pick off pawls help to separate paper and drum 8 CLEANING The cleaning brush removes toner remaining on the drum after image...

Page 240: ... Development Unit 17 Black Toner Supply Unit 18 Pre Transfer Lamp 19 Feed Roller 20 Pick up Roller 21 Separation Roller 22 Large Capacity Tray 23 Relay Rollers 24 Registration Rollers 25 Paper Tray Feed Roller 26 Friction Pad 27 Turn Gate 28 Duplex Friction Roller 29 Duplex Feed Roller 30 Transfer Separation Corona Unit 31 Jogger Fences 32 End Fence 33 Lower Paper Tray 34 Entrance Rollers 35 Duple...

Page 241: ...5 DRIVE LAYOUT 1 2 1 3 4 9 8 7 6 5 10 11 12 13 14 10 15 16 17 18 19 20 21 22 26 25 24 23 Overall Information 12 February 1992 DRIVE LAYOUT 1 11 ...

Page 242: ... Drive Distribution Gear Pulley 20 Toner Supply Drive Gear Pulley 6 Copier Exit Roller Gear 22 Toner Supply CL Gear 21 Development Unit Shift Gears 7 Duplex Transport Drive Belt 8 Duplex Transport Roller Pulley 5 Sorter Adapter Gears 10 Registration CL Gear 11 Upper Paper Feed CL 13 Feed Relay CL Gear 17 Relay Roller Gears 19 Paper Feed Drive Gear Pulley 16 Paper Feed Drive Belt 14 Lower paper Fee...

Page 243: ...ends on which mode the operator has selected For copy processing all sheets follow the same path from the paper feed mechanism A through the registration B T S corona C and fusing unit D After that normal copies are delivered to the copy tray E however 2 sided copies and overlay copies are diverted for further processing D C B A A E Overall Information 12 February 1992 PAPER PATH 1 13 ...

Page 244: ...through the entrance rollers C and the turn gate D The turn gate directs paper through the duplex feed mechanism E to the duplex tray F After all sheets are stacked in the duplex tray these sheets follow the path through the duplex feed mechanism and relay rollers G to the registration rollers H After that these sheets follow the same path as normal copying from the registration rollers to the cop...

Page 245: ...r the end fence A of the duplex tray lowers The sheet advances over the lowered end fence The sheet is stopped by the friction between the duplex feed and friction rollers B C It is directed to the relay rollers D by the reversed duplex feed roller It stays there once After that the sheet follows the same path as in multiple 2 sided copying from the relay rollers to copy tray D B C A Overall Infor...

Page 246: ...s in multiple 2 sided copying to the turn gate A The turn gate directs the sheet to the relay rollers B The sheet stays there once After that the sheet follows the same path as in multiple 2 sided copying from the relay rollers to the copy tray B A PAPER PATH 12 February 1992 1 16 ...

Page 247: ...ransport guide Also the air flow isolates the toner collection tank from fusing heat Provides air flow to the charge corona section as well 65 M6 Fusing exhaust fan Removes the heat from around the fusing unit 66 M7 Scanner drive Drives the 1st and 2nd scanners dc stepper 67 M8 3rd scanner drive Drives the 3rd scanner dc stepper 75 M9 Optics cooling fan Removes heat from the optics unit 77 M10 Len...

Page 248: ...f the original 90 PCB7 High voltage supply CTBG Supplies high voltage for the charge corona grid bias transfer corona and development bias 9 PCB8 High voltage supply D Supplies high voltage for the separation corona 8 PCB9 PTL QL stabilizer Provides high voltage for the quenching and pre transfer lamps 73 PCB10 Duplex control duplex machine only Controls the rotation of the duplex feed motor 106 P...

Page 249: ... 4 SW4 Upper paper size 4 non duplex machine only Determines what size paper is in the upper paper tray 5 SW5 Lower paper size 1 Determines what size paper is in the lower paper tray 36 SW6 Lower paper size 2 Determines what size paper is in the lower paper tray 34 SW7 Lower paper size 3 Determines what size paper is in the lower paper tray 33 SW8 Lower paper size 4 Determines what size paper is i...

Page 250: ...g on the drum surface after cleaning 47 L2 Pre transfer Reduces the charge on the drum surface before transfer 49 L3 Fusing Provides heat to the hot roller 60 L4 Exposure Applies high intensity light to the original exposure 99 L5 Erase Eliminates the charge for unnecessary areas of the image on the drum surface before exposure 48 Magnetic Clutches MC1 Development drive Drives the development roll...

Page 251: ... tray in the main copier 37 SOL6 Junction gate duplex machine only Moves the junction gate to direct copies to the duplex tray or to the paper exit 43 SOL7 Duplex turn gate duplex machine only Moves the duplex turn gate to direct copies to the duplex tray or to the relay rollers 105 Sensors S1 By pass feed table Detects if the by pass feed table is open or closed 15 S2 Upper tray set non duplex ma...

Page 252: ...isfeeds 50 S11 Registration Detects the lead edge of paper to determine the stop timing of the feed relay clutch and detects misfeeds 52 S12 Image density ID Detects the density of the ID sensor pattern on the drum to control the toner density 57 S13 V Detects the VR and VL patterns 58 S14 Fusing exit Detects misfeeds 62 S15 Junction gate duplex machine only Detects misfeeds 63 S16 Scanner H P Inf...

Page 253: ... Sends signal to CPU to stop lowering the LCT bottom plate 81 S28 LCT upper limit LCT machine only Sends signal to CPU to stop lifting up the LCT bottom plate 78 Heaters H1 Drum Turns on when the main switch is off to prevent moisture around the drum 54 H2 Optics anti condensation option Turns on when the main switch is off to prevent moisture from forming on the optics 97 H3 Upper tray option Tur...

Page 254: ...h current protection in the electrical components 42 FU2 Sorter line 115 V machine only Provides back up high current protection in the electrical components of the sorter 46 FU3 DF line 115 V machine only Provides back up high correct protection in the electrical components of the ARDF 7 Circuit Breaker CB1 230 V machine only Provides back up high current protection in the electrical components 4...

Page 255: ...SECTION 2 DETAILED SECTION DESCRIPTIONS ...

Page 256: ...nents The operation panel manual ID selection and reproduction ratio ADS sensor ID sensor V sensor drum thermistor paper size switches color detection switches and RAM board drum rotation time and SP mode data Refer to the process control table in the supplement sheet bag for the details on which electrical component controls which controlled item In the following sections we will explain briefly ...

Page 257: ...M If the drum initialization is performed SP mode 66 or the RAM is cleared SP mode 99 the CPU starts counting for the toner density check from the beginning of the first copy cycle The ID sensor pattern black is stuck on the operator side of the bottom of the left scale bracket During the check cycle the ID sensor pattern is exposed prior to exposure of the original Sensor Pattern Original Lead Ed...

Page 258: ...he toner is not added all at once The CPU energizes the toner supply clutch solenoid for the proper amount of time to add a calculated amount of toner over the next 10 copy cycles 5 copy cycles for color toner Such toner supply control through the ID sensor is called a detect supply mode On this copier this mode is used to control both black and color toner supply Detailed Descriptions 12 February...

Page 259: ...ntrols the toner supply Standard setting 0 to 500 copies Over 500 copies Black toner 220 V 200 V Red Blue toner 200 V 180 V Green toner 240 V 220 V Vsg is the reference voltage of the ID sensor output and is automatically adjusted to 4V whenever SP mode 54 is called The development bias for the ID sensor pattern is fixed for each toner color This is to avoid any influence from the manual ID level ...

Page 260: ... is selected when the data of SP mode 30 is 1 On this copier this mode can be selected only for black toner The CPU monitors Vsp and Vsg once every 10 copy cycles even in the fixed supply mode To avoid over toning the CPU stops toner supply when Vsp becomes 1 10 Vsg or less Vsg Vsp 100 4 0 V 10 0 4 V Vsg Vsp 100 4 0 V 25 1 0 V Low Density High Density High Density Low Density Black Toner Color Ton...

Page 261: ... normal fixed supply mode b Vsp abnormal When Vsp Vsg X 100 goes to 50 or more the CPU changes the toner supply amount to the ID sensor abnormal level and continues toner supply and ID sensor pattern detection If this abnormal value of Vsp is detected 5 times in a row the CPU makes the call service indicator blink Then the CPU shifts the toner supply to the abnormal fixed supply mode as it does un...

Page 262: ... sensing the VR pattern on the drum surface This VR pattern detection is performed after the drum initial setting SP mode 66 After this the CPU will do one VR pattern detection every 200 copies for the next 2 000 copies and every 1 000 copies after that Also when VR data correction See 1 5 Drum Temperature Control is applied and the drum temperature goes over 25 C this detection is performed Accor...

Page 263: ...Vrg is the same as that of Vsg detected by the ID sensor Just next to this bare drum area the drum is developed with VR pattern bias voltage 0V If there is residual voltage on the drum this area of the drum will attract some toner making a VR pattern The V sensor checks the reflectivity of the VR pattern and this sensor output voltage is called Vrp The CPU notes the ratio Vrp Vrg This VR pattern c...

Page 264: ...tage are corrected VR correction according to the ratio between Vrp and Vrg as shown in the above table ex If there is no residual voltage on the drum Vrp 4V and Vrg 4V Then the proportion is Vrp Vrg x 100 4 4 x 100 100 When the drum residual voltage increases the VR pattern becomes darker The value of Vrp decreases and also the Vrp Vrg ratio decreases Then the CPU increases the negative developme...

Page 265: ... for VL pattern control as well as for VR pattern control The VL pattern light gray is located on the non operator side of the bottom of the left scale bracket When a copy job finishes in VL pattern detection timing the exposure lamp stays on for about 6 seconds while at the home position The VL pattern is lit and a latent image of it is made on the drum After this image is developed its reflectiv...

Page 266: ...r lamp and the quenching lamp turn on After about one revolution of the drum the appropriate blocks of the erase lamp turn off and on to make a VL pattern 20 x 20 mm on the drum surface The drum surface is developed with non image area bias for both the bare drum and VL pattern The V sensor checks the reflectivity of the bare drum Vlg and that of the VL pattern Vlp The CPU calculates the ratio bet...

Page 267: ...4 3 VL Correction VL Level Lamp correction voltage 151 1 V 101 150 0 V 0 100 1 V The V sensor output is automatically adjusted to 4V for Vlg Vrg by calling SP mode 54 as we mentioned in 1 3 3 VR Correction When the VL pattern detection is performed during the operation the CPU compares the Vdat with the Vref According to the ratio between Vdat and Vref the CPU applies the voltage correction to the...

Page 268: ...e drum thermistor If the temperature is 25 C or less the CPU applies appropriate corrections to the exposure lamp voltage low temp correction to the grid bias voltage VR data correction and to the development bias voltage VR data correction When the temperature goes over 25 C the VR pattern detection and VL pattern detection are performed and the above corrections are canceled If the temperature i...

Page 269: ...ion is required under low temperature conditions the CPU increases the exposure lamp voltage by 1V 1 5 3 VR Data Correction When the low temp correction is applied VR data correction is applied simultaneously The VR correction level for both the grid bias voltage and the development bias voltage is stepped up by 1 This means the negative voltage for the charge grid and the development bias is incr...

Page 270: ...e the ID sensor pattern on the drum becomes lighter causing higher toner concentration in the developer Also copy image density becomes slightly lighter To control toner density properly and to keep copy image density drum potential is maintained by increments of the grid bias voltage at set intervals See graph above Drum rotation time V H Drum potential 37 63 88 H 450 550 600 0 1 2 500 520 540 56...

Page 271: ...the drum wear is compensated by VL correction VL correction is performed more often than VG correction therefore VG correction is not applied to the exposure lamp voltage only to the grid bias voltage PROCESS CONTROL 12 February 1992 2 16 ...

Page 272: ...conductivity of a photoconductor 3 Dissipating an amount of charge in direct proportion to the intensity of the light That is where stronger light is directed to the photoconductor surface a smaller voltage remains on the OPC 4 Being less sensitive to changes in temperature when compared to selenium F type drums 5 Being less sensitive to changes in rest time light fatigue This makes it unnecessary...

Page 273: ...ng pressure They move side to side during the copy cycle This movement is made via a worm gear and an eccentric cam gear The ID sensor is used to control the toner density in the developer The V sensor is used for VR and VL pattern detections The drum thermistor is used for drum temperature control A green color filter F is stuck just above the toner shield glass on the drum unit top plate to decr...

Page 274: ...tage to the grid plate 745 V for image 500 V for sensor pattern The corona current is controlled by the variable resistor in the circuit and the grid bias voltage is controlled by a PWM Pulse Width Modulation system The transport fan located above the fusing unit provides an air flow to the charge corona unit to prevent uneven built up of negative ions that can cause an uneven charge of the drum s...

Page 275: ...The cleaner pad bracket B rotates when the charge unit is fully extended and the bracket is pulled up against the rear block C This moves the pads against the corona wire see illustration If the charge unit is not fully extended the pads do not touch the corona wires The pads move away from the wire when the charge unit is fully inserted and the cleaning bracket is pushed against the front block D...

Page 276: ...s output should be corrected by entering the grid voltage correction data in SP mode 62 3 3 2 Manual ID Correction When the image density is selected by the manual image density keys on the operation panel the grid bias voltage is changed as shown in the above table The image density for each manual ID level is also controlled by the exposure lamp voltage and the development bias voltage The manua...

Page 277: ...d bias voltage as shown in the above table VR data correction is also applied to the development bias voltage and the low temp correction is applied to the exposure lamp voltage simultaneously under this condition 0 27 40 57 83 100 0 4 3 2 1 40V 160 V 120 V 80 V VR Level Grid Bias Correction Voltage VR Level Vrp Vrg x 100 Grid Bias Correction Voltage 0 100 84 0V 1 83 58 40V 2 57 41 80V 3 40 28 120...

Page 278: ...34 ADS density the negative grid bias voltage is increased by 50 V When the lighter setting is selected the negative development bias voltage is increased 0 20 V 40 V 60 V 80 V Grid Bias Correction Voltage 37 63 88 2 Drum Rotation Time H SP100 Drum Rotation Time H Grid Bias Correction Voltage 0 1 0V 2 36 20V 37 62 40V 63 87 60V Data Density Grid Bias Correction Voltage 0 Normal 0V 1 Darker 50V 2 L...

Page 279: ... VG Correction ADS Density SP34 2 Manual ID Mode Vgi 745 V Manual ID Correction VR Correction VR Data Correction VG Correction 3 ID Sensor Pattern Detection Vgp 500 V VG Correction 4 VR Pattern Detection Vgp 500 V VG Correction 5 VL Pattern Detection Vgi 745 V VR Correction VR Data Correction VG Correction 6 Non Image Area 0 V DRUM CHARGE 12 February 1992 2 24 ...

Page 280: ...unit becoming dirty by the optics cooling fan The 1st scanner lamp and 1st mirror 2nd scanner 2nd and 3rd mirrors 3rd scanner 4th and 5th mirrors and the lens function together to achieve a wide range of reproduction ratios 50 200 The auto density selection ADS sensor board is mounted on the optics bottom plate in the lens housing cover The ADS sensor board collects light reflected from the origin...

Page 281: ...s connected to 2 long scanner drive belts by the belt clamps The second scanner I which consists of the second and third mirrors is connected to 2 short scanner drive belts by belt clamps The relay pulley moves the second scanner at half the velocity of the first scanner The diameter of the pulley for the short belts is half that for the long belts This is to maintain the focal distance between th...

Page 282: ...y the home position sensor E The main board keeps track of the lens position based on the number of pulses sent to the lens motor 4 3 2 Shading Mechanism The shading plates F are installed on the lens housing G and are slid open and shut by the shading cam H This shading mechanism adjusts the horizontal light intensity which becomes uneven in reduction mode when the light at the sides of the image...

Page 283: ...This occurs when the actuator plate C enters the lens home position sensor The lens can be seen to go back and forth when the lens moves through the home position from the reduction side to the enlargement side The lens is going in the wrong direction to register the home position The lens overshoots the home position by 20 pulses before going back to register the home position and it then oversho...

Page 284: ...etween the lens and drum surface 4 4 2 Positioning The positioning mechanism is similar to that for lens positioning as shown in the above positioning chart The scanner always stops while moving from right to left as viewed from the front A B Initialize Enlarge Reduce Full Size Full Size Enlarge Reduce Enlarge Reduce Enlarge Reduce 20 20 1 L H 3rd Scanner H P Sensor Signal 1 pulse 0 06 mm pulses D...

Page 285: ...ice in platen mode for determining the original size for actual copying in APS or AMS modes First check is done when the platen or DF position sensor C is activated At this time the angle between the platen cover and the exposure glass is about 30 degrees Only the sensor s underneath the original receive the reflective light and output a low signal The other sensor s output a high signal The CPU s...

Page 286: ... x 15 10 x 14 O O O O O O X 81 2 x 14 X O O O O O X F4 X O O O O X X A4 lengthwise 81 2 x 11 X O O O X X X B5 lengthwise or smaller 8 x 10 X O O X X X X A5 lengthwise 51 2 x 81 2 or smaller X X X X X X X A4 sideways or smaller 11 x 81 2 O O O X X X X B5 sideways 81 2 x 51 2 O O X X X X X A5 sideways or smaller 81 2 x 51 2 or smaller X O X X X X X If the start key is pressed with the platen cover o...

Page 287: ...covered by the lens housing cover which has a small hole to direct the reflected light from the original to the ADS sensor The ADS sensor standard voltage is adjusted to 1 5V when SP mode 56 is performed The exposure lamp turns on with 64V fixed voltage at the home position and the light reflected by the middle part of the reverse side of the left scale bracket white painted reaches the ADS sensor...

Page 288: ...iginal lead edge The CPU takes the maximum ADS sensor output during the sampling period and compares it with the ADS reference voltage to determine the proper development bias voltage See ADS Data Correction in development bias control section for the detail The sampling length of ADS sensor output for the original differs depending on the reproduction ratio because the scanner speed is different ...

Page 289: ... 2 Vexp 2V 3 Vexp 1V 4 Vexp 0V 5 Vexp 1V 6 Vexp 1V 7 Vexp 2V When an image density level is selected by the manual image density keys on the operation panel the exposure lamp voltage is changed as shown in the above table The voltage changes 2V within manual ID levels 1 to 7 The grid bias voltage and the development bias voltage also change to make the appropriate image density graduation for each...

Page 290: ...tection the exposure lamp voltage is corrected as shown in the above table When the VL level Vdat Vref X 100 corresponds to the level less than 100 meaning that the intensity of the light reaching the drum surface is less than the initial condition the lamp voltage is increased by 1V If the VL level is within the range of 101 and 150 no correction is applied because the light intensity is strong e...

Page 291: ...7 5 Total Exposure Lamp Voltage The total exposure lamp voltage for each mode is determined by the CPU as follows 1 ADS Mode Vexp SP48 Reproduction Ratio Correction VL Correction Low Temp Correction 2 Manual ID Mode Vexp SP48 Manual ID Correction Reproduction Ratio Correction VL Correction Low Temp Correction 3 ID Sensor Pattern Detection The same as the ADS mode or the manual ID mode depending on...

Page 292: ... size the copier stops and check paper size indicator blinks T4 The drum idling period for the preparation of paper feed after the start key is pressed At this timing paper feeding starts This period differs depending on the paper feeding station By pass feed table Upper paper tray Lower paper tray After the start key is pressed Black 255ms 200ms 27ms Color 3 922ms 3 867ms 3 394ms The drum idling ...

Page 293: ...e left scale bracket ADS reference voltage 455ms after the exposure lamp turns on T8 The lead edge signal is sent from the I O CPU to the main CPU about 555ms after the exposure lamp turns on T9 The CPU starts sampling the ADS sensor output for the original 28ms after the lead edge signal is sent to the main CPU The sampling period differs depending on the reproduction ratio and the selected devel...

Page 294: ...D starts lighting pulse for the sensing Vlg and Vlp 1983ms later T4 The CPU takes the Vlg data 2183ms after the VL pattern detection starts The CPU takes the Vlp data during the period between 1 and 2 in the above timing chart T5 The CPU detects the Vlg and Vlp data 4 times with 833ms intervals T6 The charge corona output turns off 5192ms after the VL pattern detection starts and all the other ele...

Page 295: ...amp unit consists of a line of LEDs extending across the full width of the drum The erase lamp unit has four functions lead edge erase trail edge erase side erase and pattern erase This copier has two types of erase lamp unit One is a standard type with 31 blocks 48 LEDs The other is an edit type with 120 blocks 120 LEDs which should be used when the editor board is installed LO LC SE ES LE EL ERA...

Page 296: ...ition the charge corona the grid bias and the exposure lamp turn off However the charged area on the drum surface is a little longer than the actual original length in order to have the entire latent image of the original The entire line of LEDs turn on when the trail edge of the latent image has passed by 2 mm under the erase lamp unit This prevents developing unnecessary parts of the drum surfac...

Page 297: ...Sideways 86 90 a d 82 85 a e 78 81 a f 81 2 x 11 81 2 x 51 2 F4 74 77 a g A4 Lengthwise 70 73 a h 66 69 a i 63 65 a j 60 62 a k 57 59 a l 54 56 a m 52 53 a n A5 Lengthwise 51 2 x 81 2 50 51 All a p Lead Edge and Trail Edge Erase Although no erase lamp LEDs turn on when paper size is A3 11 X17 or A4 8 1 2 X11 sideways and when the reproduction ratio is 99 to 200 there are side erase margins because...

Page 298: ... margin When in the VR pattern detection cycle the entire line of the erase lamp LEDs turn on a little longer than the normal lead edge erase period The VR pattern is made by applying a development bias of 0 V for the erased drum surface before the original latent image When in the VL pattern detection cycle the trail edge erase stays longer than the normal copy cycle The exposure lamp turns on at...

Page 299: ...hout the editor board If the erase lamp unit is replaced with another type the data of SP mode 84 editing eraser should be changed accordingly When the editor is installed the copier CPU automatically changes the data of SP84 to 1 SP84 Editing Eraser 0 No Standard erase lamp unit 1 Yes Edit erase lamp unit If this data setting is wrong incorrect side erase margins appear on copies and the ID senso...

Page 300: ...ad edge erase to the side erase 611ms after correction 2 This side erase period differs depending on the paper size In case of the full size mode Paper size Period A3 2 355ms B4 2 044ms A4 lengthwise 1 650ms A4 sideways 1 189ms T5 The charge corona turns off when the scanner starts the return movement 98ms after that the erase lamp changes its mode from the side erase to the trail edge erase T6 Th...

Page 301: ...anent magnets in the development roller attract the developer to the development roller sleeve The turning sleeve of the development roller then carries the developer past the doctor blade G The doctor blade trims the developer to the desired thickness and creates a backspill for the cross mixing mechanism The development roller continues to turn carrying the developer to the drum When the develop...

Page 302: ...ft B The change shafts are turned by the development change cam C through the change lever D The cam is driven by the main motor through gears and timing belts The development change solenoid E controls the spring clutch to set the cam position A C E B B E C A A D B A D C Detailed Descriptions 12 February 1992 DEVELOPMENT 2 47 ...

Page 303: ...of the clutch gear D is transmitted to the development roller gear E and the paddle roller gears F The paddle roller shaft has a knob G on the front end so that it can be turned manually to exchange developer The knob has a one way clutch inside The one way clutch prevents the development roller from turning in the wrong direction A D E F B C G Black E D A B C F G Color DEVELOPMENT 12 February 199...

Page 304: ...ge on the drum The part that is trimmed off goes to the backspill plate The rest of the developer slides down the backspill plate C to the paddle roller D The mixing vanes E move it slightly toward the rear toward the front for the color development unit of the unit Part of the developer falls into the auger inlet and is transported to the front of the development unit rear of the color unit by th...

Page 305: ...exposure lamp voltage and the grid bias voltage The manual ID correction for the development bias voltage is applied to levels 1 6 and 7 The development bias for level 7 can be adjusted by SP mode 46 highlight bias to meet customer requests ID Level Development Bias voltage 1 120V 2 160V 3 160V 4 160V 5 160V 6 200V 7 SP46 Manual ID Correction Data Density Development Bias Correction Voltage 0 Norm...

Page 306: ... mode can be selected from three levels by SP mode 34 The normal and darker settings have the same development bias voltage table and the difference is made through the grid bias voltage 50V The development bias voltage difference between the lighter and normal settings is 40V Original Background Ratio Development Bias Voltage SP34 ADS Density 0 Normal 1 Darker 2 Lighter 80 160V 200V 75 79 200V 24...

Page 307: ...n in the above table VR data correction is also applied to the grid bias voltage and the low temperature correction is applied to the exposure lamp voltage simultaneously under this condition VR Level Vrp Vrg x 100 Development Bias Correction Voltage 0 100 84 0V 1 83 58 40V 2 57 41 80V 3 40 28 120V 4 27 0 160V VR Correction 0 27 40 57 83 100 0 4 3 2 1 40V 160 V 120 V 80 V VR Level Grid Bias Correc...

Page 308: ...neutralized by the exposure lamp voltage when the subsequent VL detections are performed Ex If you decrease the negative development bias voltage by 40V to get a darker image the VL pattern will also become darker and the exposure lamp voltage increases by 1V After several VL pattern detections the image darkened by the development bias voltage will return to the initial image density as a result ...

Page 309: ...table 2 Development bias voltage for VR pattern The development bias voltage for non image area is applied to the bare drum where Vrg output is sampled 0V is applied for the VR pattern which gives Vrp output as explained in the process control section 3 Development bias voltage for VL pattern The base development bias voltage VB0 20V for the VL pattern both Vlg and Vlp is decided in the process of...

Page 310: ...Data Setting SP37 Black Bias SP46 Highlight Bias SP79 Color Bias 3 ID Sensor Pattern Detection SP Mode Data Setting SP33 Black Pattern Bias SP75 Red Blue Green Pattern Bias 4 VR Pattern Detection Vrg 160V VR Correction VR Data Correction SP Mode Data Setting SP37 Black Bias Vrp 0V 5 VL Pattern Detection VB0 20V VR Correction VR Data Correction SP Mode Data Setting SP37 Black Bias 6 Non image Area ...

Page 311: ...olor development unit A is installed in the copier the color switch B is activated by a color detect plate C at the development unit The color switch has two microswitches inside The CPU receive a LOW signal from the micro switch activated by the color detect plate and determines which color unit has been installed B A C DEVELOPMENT 12 February 1992 2 56 ...

Page 312: ...v Unit Upper Paper Tray 200 ms 3867 ms Lower Paper Tray 27ms 3339 ms By pass Feed Table 255 ms 3922 ms Paper Tray Unit Paper Tray 1 27 ms 2394 ms Paper Tray 2 27 ms 1839 ms Paper Tray 3 27 ms 1283 ms The development change solenoid turns off 200ms after it turned on 330 930 Correction 1 200 0 Correction 2 172 0 194 444 Scanner Return Main Motor OFF Color Development Image Dev Bias T1 T2T3 T4 T5 T8...

Page 313: ...is timing T5 The development bias changes from the non image bias to the image bias 930ms 641ms for color after correction 2 T6 According to the original size and the reproduction ratio the scanner return timing is decided The timing is corrected to 0 and the charge corona turns off T7 The development bias changes from the image bias to the non image bias 444ms 194ms for color after correction 3 T...

Page 314: ...E The toner supply mylar has 50 holes 0 6 mm φ The color toner agitator is in the toner hopper and also prevents toner from clumping Both ends of the color agitator have an auger F to transport the toner to the middle where the toner supply mylar is located This copier has two different ways of controlling the amount of toner supplied Normally the detect supply mode controls toner supply for the b...

Page 315: ...through timing belts C D and the toner supply clutch E When the toner supply clutch is energized the rotation of the clutch gears is transmitted to the toner supply gears The black toner agitator rotates at the same speed as the toner supply roller A C D E B B D C A E TONER SUPPLY 12 February 1992 2 60 ...

Page 316: ...oner Supply Clutch ON Time ON time msec 2 777 x 1 20 x Toner Supply Ratio Parameter x ID Sensor Level Parameter x Paper Size parameter x Color Parameter Example SP mode 31 is set to 0 Toner supply ratio parameter 2 Vsp 0 44V Vsg 4 0 V ID sensor level parameter 1 2 Paper size is A3 or DLT Paper size parameter 49 Copies are made by black toner mode Color parameter 24 ON time 2 777 x 1 20 x 2 x 1 2 x...

Page 317: ...sg x 100 ID Sensor Level Parameter Black Color No Toner Supply 0 9 9 0 24 9 0 Toner Supply 1 10 0 10 4 25 0 26 9 1 4 Toner Supply 2 10 5 11 9 27 0 28 9 1 2 Toner Supply 3 12 0 14 9 29 0 30 9 1 Toner End 15 0 49 9 31 0 49 9 2 ID Sensor Abnormal 50 0 50 0 1 2 SP81 Red Blue Green Toner Supply Ratio Detect Mode Data 0 1 2 3 Supply Ratio 14 7 21 28 Toner Supply Ratio Parameter 2 1 3 4 SP31 Black Toner ...

Page 318: ...pply mode is used for black toner only Toner supply Clutch ON Time ON time msec 2 777 x 1 20 x Toner Supply Ratio Parameter x ID Sensor Level Parameter x Paper Size parameter x Color Parameter Example SP mode 32 is set to 0 Toner supply ratio parameter 2 Vsp 0 44 V Vsg 4 0 V ID sensor level parameter 1 2 Paper size is A4 or LT Paper size parameter 24 Color parameter 24 ON time 2 777 x 1 20 x 2 x 1...

Page 319: ...depends on color data ID Sensor Level Vsp Vsg x 100 ID Sensor Level Parameter No Toner Supply 0 9 9 0 Toner Supply 10 0 24 9 1 2 Toner End 25 0 49 9 1 2 ID Sensor Abnormal 50 0 1 2 SP32 Black Toner Supply Ratio Fixed Mode Data 0 1 2 3 Supply Ratio 7 3 5 10 5 14 0 Toner Supply Ratio Parameter 2 1 3 4 Paper Size A3 A4 B4 B5 F4 DLT LG LT By pass Feed Paper Size Parameter 49 24 37 18 29 48 42 24 50 Co...

Page 320: ...evel the detection mode changes from once every 10 to once every 5 copies Also the ID sensor level parameter increases by 1 step 1 2 Blinks Lights 7 5 15 30 60 7 5 15 30 60 7 5 15 30 60 15 30 60 60 30 60 60 60 60 60 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 0 1 2 3 4 5 6 1 5 1 5 1 5 1 5 1 5 1 5 1 10 7 14 21 28 7 14 21 28 7 14 28 28 14 21 28 28 21 28 28 28 28 28 Black Color Toner ...

Page 321: ...tor turns on continuously and the Start key turns red If the main switch is turned off and on while Add Toner is indicated blinking or lighting the main motor starts turning and toner is supplied for about 10 seconds After 10 seconds an ID sensor pattern is made 4 times If the average of the ID sensor data is in the toner end range the Add Toner indicator turns on continuously and the start key tu...

Page 322: ...fer and paper separation easier A cold cathode tube is used for the pre transfer lamp to provide sufficient light intensity A yellow filter C is installed for the PTL to reduce ultraviolet light which would cause light fatigue on the OPC drum 8 2 IMAGE TRANSFER A high negative voltage 5 kV is applied to the transfer corona wire D the corona wire generates a negative charge and attracts the positiv...

Page 323: ...to separate from the drum The negative charge on the paper from the transfer corona is not completely discharged until the paper is far enough from the drum that the toner will not be reattracted to the drum The two pick off pawls B ensure that thin low stiffness paper and upward curled paper separate completely The spurs C prevents the unfused toner on the paper from being smeared by the pick off...

Page 324: ...ck off pawls from wearing faster than other parts The cleaning brush drive gear B drives the pick off pawl drive shaft C which has a worm gear D on the other end The worm gear drives the cam gear E which provides the side to side movement to the pick off pawl assembly D A B C D E Detailed Descriptions 12 February 1992 IMAGE TRANSFER AND PAPER SEPARATION 2 69 ...

Page 325: ...he amount of the drum current This voltage is separated into ac and dc components and these are amplified in the IC148 The amplified components are sent to the analog input port of IC132 I O CPU and are converted into an 8 bit digital signal The I O CPU detects the drum current from this digital signal Transfer Corona Trigger Transfer PWM Separation DC PWM Separation AC PWM Separation Corona Trigg...

Page 326: ...for the separation ac and dc by doing the same routine as for the transfer corona These PWM values are also stored in the RAM board For the charge corona output this automatic drum current adjustment is not applied because the drum current is determined by setting the charge grid bias voltage The grid bias voltage is set by inputting a voltage correction data for individual high voltage supply boa...

Page 327: ...rs depending on the selected development unit and the paper feeding station T3 The transfer corona turns off 694ms after the scanner starts the return movement correction 3 and the separation corona turns off 767ms after correction 3 ON Start key T1 T2 T3 T4 Scanner Return Fusing Exit Sensor OFF 694 ms 767 ms 83 ms 372 ms PTL QL Main Motor Transfer Corona Separation Corona Correction 2 Correction ...

Page 328: ...ntact The cleaning brush removes paper dust and nearly half of the toner from the drum surface to reduce the cleaning load placed on the blade The cleaning blade removes the remaining toner The falling toner catches in the fibers of the cleaning brush and is carried inside the cleaning unit The toner collection roller D carries the used toner to the used toner tank E C B A D E Detailed Description...

Page 329: ...t and gears The cleaning brush and the cleaning blade D are always touching the drum surface The toner collection roller rotates at the same time as the cleaning brush to collect used toner The cleaning blade is mounted in the center of the blade and is tilted to apply even pressure D C B A DRUM CLEANING 12 February 1992 2 74 ...

Page 330: ...leases with the cleaning unit guide rail A when the cleaning unit release lever B is turned counterclockwise This prevents the drum from being scratched by the cleaning unit when the cleaning unit is pulled out A B Detailed Descriptions 12 February 1992 DRUM CLEANING 2 75 ...

Page 331: ...cleaning blade A releases when the cleaning blade release lever B is held up This cleans the edge of the cleaning blade using the blade scraper C which is mounted underneath the cleaning blade B A C DRUM CLEANING 12 February 1992 2 76 ...

Page 332: ...re made the used toner indicator starts blinking After another 250 copies are made it lights continuously 3 n 7 500 After n x 0 67 copies are made the used toner indicator starts blinking After another 250 copies are made it lights continuously 4 Total number of copies black and color 80 250 The used toner indicator starts blinking after 250 copies are made it lights continuously When the used ton...

Page 333: ...utralizes any charge remaining on the drum B A cold cathode lamp is used for quenching and it is turned on whenever the main motor rotates A yellow filter is installed for the QL to reduce ultraviolet light which would cause light fatigue on the OPC drum A B QUENCHING 12 February 1992 2 78 ...

Page 334: ...uses an FRR feed system Rotation of the pick up roller E drives the top sheet of paper from the LCT to the feed and the separation rollers The feed F and separation G rollers then take over the paper drive If more than one sheet is fed by the pick up roller the separation roller rotates in the opposite direction and prevents all but the top sheet from passing through to the registration rollers H ...

Page 335: ...ckwise Then the friction pad holder B is pressed up against the paper feed roller C The friction pad pressure against the paper feed roller is determined by the friction pad pressure spring D This friction pad pressure is applied evenly to the paper feed roller because the friction pad holder is mounted on the mounting bracket E with a swivel bushing C B D E B A C PAPER FEED AND REGISTRATION 12 Fe...

Page 336: ...ler and the moving paper As the trailing edge clears the lead edge of the paper stack the feed roller catches the next sheet and starts moving it forward The feed roller stops turning when the trailing edge of the first sheet leaves the feed roller The leading edge of the next sheet is then held ready for feeding between the friction pad and feed roller Sometime sheets of paper tend to stick toget...

Page 337: ...aper stack so that it does not interfere with the operation of the feed and separation rollers The feed and separation rollers then take over the paper feed process 11 3 2 Feed and Separation Rollers There is a one way bearing inside the feed roller so it can turn only in one direction The separation roller is driven in the opposite direction to the feed roller The separation roller however is dri...

Page 338: ...ed roller B and the paper F2 is greater then F1 So the separation roller turns counterclockwise If two or more sheets are fed between the rollers the forward force on the second sheet F3 becomes less than F1 because the friction between the two sheets is small So the separation roller starts turning clockwise and drives the second sheet back to the tray B A B A F2 F2 F1 F1 F2 F3 F3 F1 F1 Detailed ...

Page 339: ...are caught by the coupling hooks F of the limit feeler disc G Then the limit feeler disc rotates counterclockwise to pull the tray lift lever H via the bottom plate pressure spring I The tray lift arm J rotates counterclockwise to lift up the tray bottom plate At the same time as the tray lift lever rotates the tray lock lever K rotates up by its own weight and is located at the safety lock positi...

Page 340: ...end of the tray release lever The tray release lever rotates and its upper end pushes back the tray lift gear shaft C which is pressed towards the front by the spring As the coupling between the tray lift gear D and the limit feeler disc E is released the tray lift lever F rotates back to its lower position by the lever return spring G and the weight loaded to the tray lift arm H As the tray lift ...

Page 341: ...aper end actuator turns towards the sensor by its own weight If paper is loaded in the paper tray the paper end feeler D is raised by the paper stack and the paper end sensor is deactivated When the paper tray runs out of paper the paper end feeler drops in the cut out of the tray bottom plate and the paper end sensor is activated Then the tray lift motor starts the reverse rotation and lowers the...

Page 342: ...r is being fed out Also when a paper jam happens between the paper tray and the relay rollers the nearest relay sensor C is activated the tray lock solenoid turns on This is to prevent the jammed paper from being torn to pieces by pulling out the paper tray before clearing the jammed paper When jammed paper is cleared and the relay sensor is deactivated the tray lock solenoid is deenergized even w...

Page 343: ...e paper end guide is pushed against the paper stack loaded in the tray the actuator plate slides into position and actuates the appropriate paper size switches Paper Size Detection Table Paper Size Switch Size Indication 4 5 6 7 A3 F 8 x 13 A4 lengthwise A4 sideways B4 0 1 1 1 1 0 1 1 1 0 0 1 1 1 0 1 0 0 1 1 A3 F A4 A4 B4 11 x 17 11 x 8 1 2 8 1 2 x 11 8 1 2 x 14 0 1 1 1 1 1 1 0 1 1 0 1 1 0 1 1 11 ...

Page 344: ... upper limit sensor is activated When the LCT top cover is closed the LCT cover switches turn on and the pick up solenoid is energized The pick up roller bracket lowers and the LCT upper limit sensor is deactivated Then the LCT lift motor starts turning and the rotation is transmitted to the LCT drive belt F via worm gear G diagonal gears H and belt drive pulleys I The LCT bottom plate which is fi...

Page 345: ...turns off and the pick up roller goes back to the up position During the copy cycle the pick up roller is lowered to prepare for feeding the next sheet of paper If the top sheet level of the paper stack lowers the LCT upper limit sensor becomes deactivated and the LCT lift motor turns on to maintain the top sheet level PAPER FEED AND REGISTRATION 12 February 1992 2 90 ...

Page 346: ...er in the LCT the paper end feeler is kept up by the paper and the LCT paper end sensor is activated When the LCT runs out of paper the paper end feeler drops into the cut out D of the LCT bottom plate E and the LCT paper end sensor is deactivated Then the LCT lift motor F starts the reverse rotation to lower the LCT bottom plate When the LCT lower limit sensor G is activated by the bottom plate t...

Page 347: ...anging the side fence A position However there is no paper size switches for the LCT The paper size of the LCT is set by SP mode 73 SP73 LCT Paper Size 0 A4 1 B5 2 LT 11 X 81 2 The default setting for A3 A4 machine is 0 and that for LT DLT machine is 2 A A PAPER FEED AND REGISTRATION 12 February 1992 2 92 ...

Page 348: ... lower guide plate D lifts up the paper end feeler E to the detect position When there is no paper on the by pass feed table the paper end feeler is positioned in the cut out of the lower guide plate and the by pass feed paper end sensor F is deactivated When the paper is set on the by pass feed table the paper end feeler is raised by the paper and the paper end sensor becomes activated The CPU tu...

Page 349: ... fixed on the by pass feed table shaft rotates counterclockwise This rotation lifts up the wire C through the lift spring D and the junction plate E The other end of the wire pulls the lower end of the pick up roller lift slider F This movement lifts up the pick up roller bracket G and the pick up roller is positioned to be ready for feeding paper from the by pass feed table A B G F D E C PAPER FE...

Page 350: ...s located on the lower registration roller shaft B The feed relay clutch C is located on the upper relay roller shaft D The rotation of the upper relay roller shaft is transmitted to the lower relay roller shaft E via several idle gears The upper and lower paper feed clutches F G are located on the paper feed roller shafts The CPU controls the rotation of these rollers in the paper path by turning...

Page 351: ...correct skewing of paper fed from the trays The feed relay clutch turns off a certain time after the registration sensor detects the lead edge of the paper making a little buckle on the paper between the upper relay rollers H and the registration rollers I The timing for turning off the feed relay clutch differs for each paper tray and it can be changed by SP mode The registration roller pressure ...

Page 352: ... stack Shortly after that the by pass feed clutch turns on and the pick up roller and the feed roller start moving the top sheet of paper When the lead edge of the paper passes between the feed roller H and the separation roller I the pick up solenoid de energizes to lift up the pick up roller The feed roller stops turning a certain time after the registration sensor detects the lead edge of the p...

Page 353: ... Feed Cl Feed Relay Clutch Upper Relay Sensor Registration Sensor Registration Clutch Lower Relay Sensor Lower Paper Feed Cl Lower Tray Lock Sol Feed Relay Clutch Upper Relay Sensor Registration Sensor Registration Clutch Upper Paper Tray Lower Paper Tray Pick up Solenoid By pass Feed Clutch Registration Clutch Registration Sensor 311 115 ms 115 ms By pass Feed Correction 1 PAPER FEED AND REGISTRA...

Page 354: ...5 ms 3922 ms Paper Tray Unit Paper Tray 1 27 ms 2394 ms Paper Tray 2 27 ms 1839 ms Paper Tray 3 27 ms 1283 ms T2 The timing from paper feed start until the main CPU receives the Lead Edge signal differs depending on the paper feeding station Paper Feeding Station Black Dev Unit Upper Paper Tray 172 ms 555 ms Lower Paper Tray 728 ms 555 ms By pass Feed Table 305 ms 555 ms Paper Tray Unit Paper Tray...

Page 355: ...e A thermofuse E protects the fusing unit form overheating This model uses an oilless hot roller system and does not have a hot roller cleaning mechanism The hot roller strippers F separate the copy paper from the hot roller and direct it to the exit rollers G The exit sensor monitors the progress of the copy paper through the fusing unit and acts as a misfeed detector while the exit rollers drive...

Page 356: ... gear A when the front cover B is opened This allows the fusing unit drive gear to rotate freely so that misfed paper can be easily removed When the front cover is opened the actuator plate C pulls release wire D and the fusing unit drive gear is disengaged A D B C Detailed Descriptions 12 February 1992 IMAGE FUSING 2 101 ...

Page 357: ...r from creasing in the fusing unit With thick paper set the entrance guide in the lower position This is because thick paper does not bend as easily and is therefore less prone to creasing Also the lower setting allows more direct access to the gap between the fusing and pressure rollers This prevents thick paper from buckling against the fusing roller which can cause blurring at the leading edge ...

Page 358: ...heck cycle from every 1 second to every 5 seconds The CPU also changes the fusing lamp on period every check cycle The change is calculated according to the result of the previous check This keeps the fusing temperature as close as possible to the target temperature 185 C If the fusing lamp 830W is turned on or off while the exposure lamp is on the power supplied to the exposure lamp may fluctuate...

Page 359: ...duplex stack section F After the copy is delivered to the duplex stack section the jogger fences G and end fence H move inward to square the copy stack then the jogger side fences move back 5 mm and the jogger end fence moves back 8 mm After the final copy is delivered to the stack section the jogger and end fences remain against the paper stack Soon after the final copy is squared by the jogger a...

Page 360: ...propriate timing for the selected paper the duplex feed roller D reverses The copy is directed to the relay rollers E and is stopped there Second side copying is then made with the copy following the upper paper tray feed station paper path 13 1 3 Image Overlay In single image overlay copying mode the same operation as in the other duplex mode is made until the turn gate F In this case the turn ga...

Page 361: ...re driven by the duplex feed motor D The drive of the duplex feed motor is transmitted to the duplex feed rollers E and the duplex entrance rollers F through a series of gears All the gears have diagonal teeth to reduce driving noise The duplex feed motor also drives the duplex bottom plate up and down E D F A C B DUPLEX 12 February 1992 2 106 ...

Page 362: ...per to the duplex turn guide section The junction gate solenoid stays on until first side copying is finished The copy is then directed to the duplex entrance rollers by the transport rollers C The leading edge of the copy actuates the junction gate sensor D and then the duplex entrance sensor E these are monitored by the CPU to detect misfeeds C B D E A Detailed Descriptions 12 February 1992 DUPL...

Page 363: ...duplex turn gate E Then the copy paper from the turn guide section is directed to the duplex tray through the duplex entrance rollers and the duplex turn gate sensor F which is monitored by the CPU to detect misfeeds The tip of the flip mylar G moves to the left front view when the duplex feed rollers rotate to feed the copy into the duplex tray The mylar presses the copy against the duplex stack ...

Page 364: ...on sensor F In multiple 2 sided copying mode 833 ms after the fusing exit sensor detects the leading edge of the first copy the jogger motor rotates to position the jogger side fences 5 mm and the jogger end fence 8 mm away from the selected paper size When the copy paper is delivered in the duplex tray actually 205 ms after the duplex turn gate sensor detects the trailing edge of the paper the jo...

Page 365: ...ack In single 2 sided copying mode the jogger motor rotates at the same time as in the multiple 2 sided copying mode But in this mode the jogger motor moves the jogger fences outward The jogger end fence rotates down as it is pressed against the end fence stopper G The jogger side fences stay at their widest position This clears the paper path for inverting the copy paper DUPLEX 12 February 1992 2...

Page 366: ... When the cam clutch is caught by the cam stopper bracket G the clutch spring is loosened to keep the duplex bottom plate up The bottom plate pressure against the duplex feed roller is also maintained by this mechanism When the duplex feed motor rotates counterclockwise the clutch spring is loosened completely and the bottom plate lowers by its own weight When the main switch is turned on the dupl...

Page 367: ...the duplex feed roller shaft starts turning The rollers move the flip mylars E back to the right front view to prepare paper feeding from the duplex tray The duplex paper feed system consists of two sets of the duplex feed roller and the friction roller F The two sets of rollers ensure paper feeding from the duplex tray As the friction roller has a one way bearing inside it rotates freely during p...

Page 368: ...sensor I sending a High signal to the main board to stop the next paper feeding cycle The duplex feed motor may heat up because of its own rotation The heated motor may rotate irregurlarly To prevent this the feed timing from the duplex tray will be delayed every 2 seconds if the duplex motor thermistor senses 77 C or more for the duplex feed motor temperature This cools the duplex feed motor Deta...

Page 369: ...th the junction gate and the duplex entrance sensors A B are activated or between the duplex feed roller and the upper relay rollers the upper relay sensor C is activated the duplex tray lock solenoid turns on In the case of the overlay mode when a paper jam happens between the junction gate and the duplex entrance gate or between the duplex turn gate and the upper relay rollers both the duplex tu...

Page 370: ... This is to prevent the jammed paper from being torn to pieces by pulling out the duplex tray before clearing the jammed paper In order to make clearing the jammed paper easier there is a drive release lever B When this lever is rotated the duplex drive gear C is pressed toward the front and the gear engagement with the idle gear D is released Then the duplex feed roller shaft E can be turned free...

Page 371: ... Direction 2747 83 5 mm position Jogging position 80 2415 83 750 2908 T3 T4 1741 1080 380 202 1550 877 2972 2247 1580 2341 Duplex Stock Direction Duplex Stock Direction 139 1167 2170 364 1534 Lead Edge Signal 1780 0 555 0 ms Single Duplex Duplex Feed Motor Upper Relay Sensor Image Overlay include 1 Duplex Feed Motor Jogger Motor Multiple Duplex include 2 for last paper Bottom plate up Duplex Feed ...

Page 372: ...together Image Overlay Mode The timing of the junction gate solenoid duplex entrance sensor and duplex turn gate sensor is the same as that for the single duplex mode T5 83ms after the upper relay sensor detects the lead edge of the paper the duplex feed motor stops Multiple Duplex Mode The timing of the duplex turn gate solenoid junction gate sensor duplex entrance sensor and duplex turn gate sen...

Page 373: ...SECTION 3 INSTALLATION ...

Page 374: ...ted place the machine a where it will not be subjected to sudden temperature changes b where it will not be directly exposed to cool air from an air conditioner in the summer c where it will not be directly exposed to reflected heat from a space heater in winter 7 Avoid placing the machine in an area filled with corrosive gas 8 Avoid any places higher than 2 000 meters 6 500 feet above sea level 9...

Page 375: ...er to avoid damaging the sorter when it is opened a more than 10 cm 3 9 When the micro sorter is installed 15 cm 5 9 b more than 40 cm 15 7 c more than 80 cm 31 5 d When you use the copy tray more than 30 cm 11 8 a c d b g e h f e more than 10 cm 3 9 When the micro sorter is installed 15 cm 5 9 f more than 40 cm 15 7 g more than 80 cm 31 5 h more than 20 cm 11 8 When the sorter stapler is installe...

Page 376: ... than 12A for N A 220V 230V 240V 50Hz More than 7A for EU 220V 60Hz More than 7A 2 Permissible voltage fluctuation 10 3 Do not set anything on the power cord NOTE a Make sure the plug is firmly inserted in the outlet b Avoid multi wiring Installation 12 February 1992 INSTALLATION REQUIREMENT 3 3 ...

Page 377: ...ion 1 3 Sorter Key Top and Cover 1 4 Counter Set Key 17 machine only 1 5 Installation Procedure 1 6 Operating Instructions Except 27 machine 1 7 Now Equipment Condition Report 17 19 27 29 machine only 1 8 Envelope for NECR 17 machine only 1 9 User Survey Card 17 machine only 1 COPIER INSTALLATION 12 February 1992 3 4 ...

Page 378: ... the scanner lock plate before transporting this copier If it is not done skewed image may result 1 Remove the 7 strips of tape A as shown 2 Open the front door and remove 4 strips of tape B as shown 3 Pull out the paper tray C and remove a strip of tape D and the foam block E 1 tray for the duplex machine and 2 trays for the non duplex machine 4 Pull out the duplex tray F and remove the 2 strips ...

Page 379: ... scale bracket 7 Reinstall the left scale 8 Remove the left optics cover C 1 screw 9 Remove the scanner lock plate D 1 screw by pulling and lifting it up and reinstall the left optics cover 10 Remove the shipping retainer E holding the ozone filter The retainer is taped on the upper exit cover E A B C D COPIER INSTALLATION 12 February 1992 3 6 ...

Page 380: ...t unit with your left hand pull the unit all the way out Place the unit on a clean sheet of paper 13 Separate the toner supply unit from the development unit 3 screws 14 Pour one pack of black developer E into the development unit while turning the development roller knob F counterclockwise This will distribute the developer inside the unit 15 Remount the toner supply unit on the development unit ...

Page 381: ... 18 Remove the drum protective sheet C from the development unit opening CAUTION To avoid damaging the pick off pawls remove the drum protective sheet by pulling the lower side as shown in the figure 19 Turn the cleaning unit release lever clockwise to the set position 20 Remove the cleaning blade lock plate D 21 Reset the transfer separation corona unit E A B C D E COPIER INSTALLATION 12 February...

Page 382: ...ter the development unit is set 23 Shake the toner cartridge D well from side to side While pushing the toner cartridge in insert it halfway into the holder with the seal E up 24 As you peel off the seal insert the cartridge completely While pushing the toner cartridge in turn it counterclockwise until it stops 25 Slide out the charge corona unit F until it is fully extended and push it back in to...

Page 383: ...h the hole of the top cover and install the optional platen cover 2 screws 30 Couple the platen cover sensor connector E 3P white with the copier and reinstall the rear cover 31 Stick the symbols explanation decal F on the top cover as shown If the ARDF will be installed stick the decal on the corresponding position of the ARDF 32 If local voltage is 230 V or 240 V perform the voltage change proce...

Page 384: ...all service indicator and the copy counter number 0 are blinking 35 Enter 65 using the number keys and then press the enter key The copier starts the black developer initialization this lasts about 5 minutes and the beeper sounds 5 times when it is finished 36 Enter 66 using the number keys and press the enter key Press 1 then the enter key The copier performs the drum initial setting and the beep...

Page 385: ...nd the beeper sounds 2 times after 4 seconds 38 Enter 48 using the number keys and then press the enter key twice 39 Set the test chart on the exposure glass 40 Make a full size copy at the manual image density level 4 center after the copier has warmed up the beeper sounds 3 times COPIER INSTALLATION 12 February 1992 3 12 ...

Page 386: ...is too light decrease the setting NOTE The data can be set between 50 and 75 in 0 5 steps The default setting is 63 3 Press the enter key and then make a copy 4 Confirm if the image density is correct or not If not repeat the above steps from 1 to 3 NOTE The initial exposure lamp voltage must be adjusted in this step If the adjustment is done after step 45 the machine performs the initial VL patte...

Page 387: ...urn the main switch off and on 47 Enter 6 using the number keys and make copies in the full size mode The copier performs the VR sensor initial check during the copy cycle When the copy cycle is finished the copier performs the VL sensor initial check by lighting the exposure lamp at the home position 48 Check the machine operation and copy quality 49 Tell the customers that this copier sometimes ...

Page 388: ...ore starting the following procedure 1 Remove the rear cover remove 2 screws and loosen 2 screws 2 Swing out the dc power supply board assembly A 1screw 3 Disconnect the 1P connector B of the ac main harness and reconnect it to the appropriate voltage connector C of the main transformer NOTE Each 1P connector of the main transformer has its voltage rating printed on it 4 Reassemble the copier A B ...

Page 389: ...lor decal B on the development unit handle 3 Separate the toner supply unit C from the development unit 3 screws 4 Pour one bag of color developer D into the development unit while turning the development roller knob E counterclockwise This will distribute the developer evenly inside the unit 5 Remount the toner supply unit on the development unit NOTE When setting the toner supply unit be sure th...

Page 390: ...ge push down and pull out the slide plate C until it stops 9 Pull out the seal D until the red line is visible 10 Gently tap the cartridge so that all the toner in the cartridge falls inside the toner supply unit 11 Return the slide plate to its original position and remove the cartridge 12 Close the color toner supply unit cover A B D C Installation 12 February 1992 COPIER INSTALLATION 3 17 ...

Page 391: ... on the copier front door as shown and close the copier front door 18 While pressing both 1 and 3 on the operation panel number keys turn on the main switch in order to access the SP mode NOTE Release the number keys after confirming that the call service indicator and the copy counter number 0 are blinking 19 Enter 10 using the number keys and then press the enter key The copier starts the color ...

Page 392: ... screws 3 Remove the right lower cover C 2 screws Go to step 4 Machines with LCT 1 Lift up the LCT top cover D and remove the LCT front cover E 1 screw 2 Remove the right front lower cover F 2 screws Go to step 4 Common procedure 4 Remove the shorting connector G from the key counter connector 5 Remove the key counter cover H from the key counter holder bracket 2 screws D G E H F C B H A G Install...

Page 393: ... bracket E and insert the key counter holder 8 Align the holes in the fixing plate with the mounting holes of the key counter holder and secure the key counter holder 2 screws NOTE The fixing plate has three different hole sizes Use the holes that match those on the key counter holder that you are installing 9 Reinstall all the covers and check the key counter operation C A B E D COPIER INSTALLATI...

Page 394: ... piece Philips pan head screw 3 pieces Decal High Temp 1 piece CAUTION Unplug the copier power cord before starting the following procedure 1 Open the copier front door 2 Pull out the duplex tray A and remove the tray stopper brackets B C on both side rails as shown 1 screw each and then remove the duplex tray from the copier duplex machines only 3 Pull out the paper tray D and remove the tray sto...

Page 395: ... the tray heater bracket D 2 screws and set the wire saddle E and the heater harness F on the bracket as shown Make 2 sets of this assembly Upper tray heater 8 Pass the heater harness through the upper heater access hole G and install the tray heater assembly as shown 1 screw at the front 9 Connect the heater connector H with the copier as shown 2P red A B E F C D H G COPIER INSTALLATION 12 Februa...

Page 396: ...er as shown 2P red Upper and Lower tray heaters 12 Stick the warning high temp decal D on the plate to the right of the tray heater bracket as shown 13 Reassemble the copier 14 Tell the customer that the copier main switch should be turned off and the power cord should not be unplugged at night Otherwise the tray heaters will not function D C B A Installation 12 February 1992 COPIER INSTALLATION 3...

Page 397: ...ts Optics anti condensation heater P N AX400008 for 115V area P N AX400009 for 220 230 240V area 1 piece Philips pan head screw M4 x 8 P N 04340080W 2 pieces CAUTION Unplug the copier power cord before starting the following procedure 1 Open the front door and pull out the 1st and 2nd or the paper and duplex trays 2 Remove the left and front side screws A of the front upper cover B and remove the ...

Page 398: ...ass the heater connector D through the heater harness access hole and connect it with the ac harness connector E 2P red as shown 7 Reassemble the copier 8 Tell the customer that the copier main switch should be turned off and the power cord should not be unplugged at night Otherwise the optics anti condensation heater will not function C B E D A Installation 12 February 1992 COPIER INSTALLATION 3 ...

Page 399: ... 1 2 Gear Assembly 1 3 Cover Plate 1 4 Hinge Bracket 1 5 Front Door 1 6 Hinge Pin 2 7 Philips Pan Head Screw M4 x 8 10 8 Philips Pan Head Screw with Washer 1 9 Installation Procedure 1 10 New Equipment Condition Report 17 machine only 1 COPIER INSTALLATION 12 February 1992 3 26 ...

Page 400: ...cedure 1 Remove the copier rear cover A remove 2 screws and loosen 2 screws and the left small cover B 2 screws 2 Open the front door and pull out the 1st and 2nd or the paper and duplex trays 3 Remove the left and front side screws C of the front upper cover D and remove the left cover E 5 screws 4 Remove the cover plate F from the left cover by cutting it with cutting pliers 5 Install the cover ...

Page 401: ...oles of the rear bracket should be used for securing the sorter adapter 8 Swing out the dc power supply board assembly E 1 screw 9 Install the gear assembly F 3 screws on the copier rear side plate as shown NOTE The positioning hole of the gear assembly bracket G should fit over the positioning stud of the copier drive gear Also the positioning pin of the gear assembly H should be placed in the po...

Page 402: ...r cover 12 Install the cover plate A 2 screws on the sorter adapter 13 Install the hinge bracket B 2 screws on the front side plate of the sorter adapter 14 Install the front door C on the hinge bracket with the 2 hinge pins D D B C A Installation 12 February 1992 COPIER INSTALLATION 3 29 ...

Page 403: ...SECTION 4 SERVICE TABLES ...

Page 404: ... care not to scratch the drum as the drum layer is thin and is easily damaged 6 Never expose the drum to corrosive gases such as ammonia gas 7 Always keep the drum in the protective sheet when keeping the drum unit or the drum itself out of the copier Doing so avoids exposing the drum to bright light or direct sunlight This will protect the drum from light fatigue 8 Before inserting or pulling out...

Page 405: ...alcohol if any toner still remains on the casing 3 Clean the end blocks with a blower brush first to remove toner and paper dust Then clean it with alcohol if any toner still remains on it 4 Do not touch the corona wires with oily bare hands Oil stains may cause white bands on copies 5 Make sure that the corona wires are correctly positioned between the cleaner pads and that there is no foreign ma...

Page 406: ...t shielding mylar on the original length sensor does not interfere with the light path to the ADS sensor board 5 Do not touch the following parts with bare hands a Reflectors b Exposure lamp c Mirrors and lens d ID sensor and VL patterns 6 To clean the mirrors and lens only use a clean soft cloth damped with alcohol or water 7 Do not adjust uneven exposure by changing the exposure lamp position bu...

Page 407: ...inals 4 Clean the drive gears after removing the used developer 5 Never load different types of developer or toner black and color into the development unit Doing so will cause poor copy image and toner scattering inside the copier 6 Developer initialization is necessary when new developer is loaded a Black developer initialize SP65 b Color developer initialize SP10 7 Adjust the black development ...

Page 408: ...toner tank is filled more than half of its capacity Of course it is better to do it at every visit c When an ID sensor abnormal condition happens Used toner tank overflow cannot be detected 5 Perform the toner end counter clear SP83 whenever the used toner tank is emptied 6 If the toner end counter SP58 is cleared by accident by SP83 or any other reason empty the used toner tank 1 9 PRE TRANSFER A...

Page 409: ...will provide incorrect friction pad pressure 5 The friction pad holder mounting bracket must be reinstalled on the original paper tray Because the friction pad pressure is adjusted for each paper feed station independently at the factory 6 The paper tray with the friction pad mechanism must be reinstalled at the original paper feeding station 7 The friction pad pressure should not be adjusted in t...

Page 410: ...ch while holding down mode keys for service representatives for memory all clear mode SP99 and normal SP modes Access Procedure 1 Key operation Accessible SP mode numbers 11 14 15 16 17 18 19 20 21 26 27 34 36 38 39 46 86 91 92 93 Refer to the SP mode table for details 1 Turn on the main switch 2 Press the Clear Modes key 3 Press the Clear Stop key 4 Press the Enter key NOTE The Call Service indic...

Page 411: ...in switch off 2 While pressing both 1 and 3 on the operation panel number keys turn on the main switch NOTE Release the number keys after confirming that the Call Service indicator and the Copy Counter number 0 are blinking 3 Enter the desired SP mode number using the number keys and press the Enter key NOTE 1 An SP mode number will blink in the Copy Counter The Copy Counter will stop blinking and...

Page 412: ...tor 3 Enter the desired value or mode using the number keys SP mode numbers and information are given in the SP Mode table 4 To leave the SP mode press the Clear Modes key access procedure 1 or turn off the main switch access procedure 2 2 1 3 Memory All Clear Procedure SP99 CAUTION Memory all clear mode SP99 clears all the correction data for process control and software counters and returns all ...

Page 413: ...he toner end counter has been cleared 7 Replace the OPC drum with a new one NOTE Since the drum counter for the process control has been cleared the old drum cannot be used If the old drum is used after all memory is cleared a dirty background and or toner scattering will appear on copies sooner or later because proper VG correction will not be applied to the drum 8 Clean the optics sensors and in...

Page 414: ...unit as necessary 12 Perform the following SP modes SP66 Drum initialize SP54 Auto Vsg Vlg adjustment SP48 Exposure lamp voltage adjustment SP56 Auto ADS gain adjustment 13 Check copy quality and the paper path and do the necessary adjustments Service Tables 12 February 1992 SERVICE PROGRAM MODE 4 11 ...

Page 415: ...et Sets the copier in free run mode The copier runs without paper feeding After SP2 is set press the start key to start free run operation Before pressing the start key you can select any other SP mode in which copying is possible mark SPNo Start key 3 Free Run Reset Resets the copier from free run mode 4 Forced Start Copies can be made before being warmed up Copy quality and paper transport are n...

Page 416: ...copies from the by pass feed table Double count is applied to the user code counter SP91 and the mechanical counters 0 Single 1 Double 14 Manual Staple Reset Selects accessible period for manual stapling after completing a copy job in sort mode Only when the sorter stapler is installed 0 20 sec 1 1 min 2 None 15 Auto Reset Selects auto reset time of 1 or 3 minutes or cancels this mode 0 1 min 1 3 ...

Page 417: ...eries Priority Sets the priority of series copying in overlay mode For type 2 copiers only 0 No 1 Yes 28 Auto Sort Select ADF Sort Mode is automatically selected when more than 1 original is set on the ADF and the entered copy quantity is greater than 1 and less than 21 11 for the micro sorter Sorter and ADF must be installed on the machine When in duplex 1 1 sided original mode or overlay mode mo...

Page 418: ...0 5 mm 1 0 mm 2 10 mm 3 15 mm 37 Black Bias Adjusts black bias voltage if the image density at level 4 cannot be adjusted by SP48 exposure lamp voltage This must be done only other replacing the OPC drum 0 Vo Normal 1 Vo 40 V Darkest 2 Vo 20 V Darker 3 Vo 20 V Lighter 4 Vo 40 V Lightest 0 N 1 HH 2 H 3 L 4 LL 38 Edge Erase Selects the width of the edge erase margin Only when the editor is installed...

Page 419: ... 44 0 80 40 default 48 Lamp Voltage Adjusts the exposure lamp voltage 50 to 75 V in 0 5 V steps The lamp voltage must be adjusted only after performing SP 66 when replacing the OPC drum 50 75V 63V default 49 Fusing Temperature Adjusts fusing temperature 175 to 190 C in 1 C steps 175 190 C 185 default 50 Lens Error Correction Adjusts the lens position to correct magnification in enlarge reduction m...

Page 420: ...e digit counter Beeper sounds 2 times when the adjustment about 4 sec is completed 57 Auto Drum Current Adjustment Adjusts the transfer and separation corona currents automatically Press the start key to perform When the high voltage supply board CTBG and or D is replaced perform this mode after setting the data of SP62 When separation corona current adjustment fails beeper sounds twice and the co...

Page 421: ...ation is done 0 NO 1 YES 67 Drum Correction Level VR Displays the present VR correction level VR level Vrp Vrg x 100 Display only 0 100 84 1 83 58 2 57 41 3 40 28 4 27 0 68 Lamp Correction Level VL Displays the present Vdat Vlp Vlg x 100 Vdat The VL level is displayed while the key is held down VL level Vdat Vref x 100 Vlp Vlg Initial Vlp Vlg x 100 Display only VL level 0 100 1V 101 150 0V 151 1V ...

Page 422: ... limited the amount depends on which sorter is installed 0 No 1 Yes 77 ADF Auto Feed Out Duplex mode Sets the copier to eject the final copy if an odd number of originals are set When Yes the final sheet is fed out When No the sheet stays in the duplex tray 0 Yes 1 No 79 Color Bias Adjusts color bias voltage if color image density is improper compared with black image density 0 Vo Normal 1 Vo 40V ...

Page 423: ...120 k 88 PM Counter Displays contents of the PM counter When entering this mode by pressing the key the first three digits are displayed in the three digit indicator Hold down the key to display the second three digits When the PM counter is exceeded the call service indicator blinks and the key counter indicator lights 89 PM Counter Clear Resets the PM counter Use this mode after performing PM Be...

Page 424: ...lear Clears all the service call and jam counters To clear press 1 then the key Beeper sounds 3 times when this function is used 0 No 1 Yes 98 Counter Clear Clears the following counters Operation Time motor count only SP100 Copy Original Counters SP101 SC Counters SP120 Jam Counters SP130 PM Counter SP88 User Code Counters SP91 User Program To clear press 1 then the key Beeper sounds 4 times when...

Page 425: ... display 101 1 Total Counter Displays the total number of copies 101 2 Total Color Counter Displays the total number of color copies 101 3 Red Counter Displays the total number of red copies 101 4 Green Counter Displays the total number of green copies 101 5 Blue Counter Displays the total number of blue copies 101 6 Duplex Counter Displays the total number of duplex copies made 101 7 ADF Counter ...

Page 426: ... of copies made using the present drum 110 2 Black Developer Counter Displays the total number of copies made using the present black developer 110 3 Red Developer Counter Displays the total number of copies made using the present red developer 110 4 Green Developer Counter Displays the total number of copies made using the present green developer 110 5 Blue Developer Counter Displays the total nu...

Page 427: ...130 1 Jam Total Counter Displays the total number of paper jams excluding original jams in the ADF SP130 14 130 2 Jam 1st Feed Counter Displays the total number of paper jams from the upper paper tray Type 1 3 130 3 Jam 2nd Feed Counter Displays the total number of paper jams from the lower paper tray 130 4 Jam 3rd Feed Counter Displays the total number of paper jams from the upper tray of the pap...

Page 428: ...m 152 Paper Feed Timing 2nd 5th tray Adjusts the registration paper buckle amount for the paper fed from the lower paper tray or the paper tray unit The data value is the approximate distance that the paper is fed after the lead edge is detected by the registration sensor 0 27 mm 6 33 mm 7 34 mm 8 35 mm 24 51 mm 153 Paper Feed Timing Duplex Adjusts the registration paper buckle amount for the pape...

Page 429: ... board T is displayed Hold down the start key to display the transfer corona current µA The PWM value can be changed by using the up down keys in 1 step 163 D CH AC PWM Drum Current Check Displays the separation ac corona current in the three digit indicator When entering this mode by pressing the key the adjusted PWM value for the high voltage supply board D ac is displayed Hold down the start ke...

Page 430: ...his mode by pressing the key the adjusted PWM value for the V sensor is displayed Hold down the start key to display the V sensor output voltage The PWM value can be changed by using the up down keys 167 ADS Gain Output Check Displays the ADS sensor output in the three digit counter When entering this mode by pressing the key the adjusted gain data for the ADS sensor is displayed Hold down the sta...

Page 431: ...or switch or signal press the key twice and repeat from step 3 Input No Sensor Switch Signal Data 0 1 1 Registration sensor S11 Paper not detected Paper detected 2 Fusing exit sensor S14 Paper not detected Paper detected 4 Upper relay sensor S10 Paper not detected Paper detected 5 Lower relay sensor S9 Paper not detected Paper detected 6 Tray relay sensor 1 Paper tray unit S9 Paper not detected Pa...

Page 432: ...ver open Cover closed 37 Sorter entrance sensor Paper not detected Paper detected 39 By pass feed table sensor S1 Table closed Table open 40 By pass feed paper end sensor S4 Paper detected Paper not detected 41 Duplex unit set detection Off On 42 Duplex paper end sensor S24 Paper not detected Paper detected 43 Duplex turn gate sensor S23 Paper not detected Paper detected 44 Duplex entrance sensor ...

Page 433: ... Paper size Data A3 11 X 17 1 B4 3 F 81 2 X 14 2 A4 lengthwise 6 A4 sideways 81 2 X 11 lengthwise 4 B5 lengthwise 12 B5 sideways 81 2 X 11 sideways 8 Table 3 Original size Data A3 7F 11 X 17 6F B4 3F A4 Lengthwise E A4 sideways 8 1 2 X 11 lengthwise 7 B5 lengthwise 6 B5 sideways 8 1 2 X 11 sideways 3 A5 lengthwise 0 A5 sideways 2 No original 0 Original Width Sensors 1 5 3 4 2 Original Length Senso...

Page 434: ...turning in this output mode regardless of upper or lower limit sensor signal Do not keep the electrical component on for a long time to prevent any mechanical or electrical damage Output No Electrical component 1 Main motor M1 2 High voltage supply Charge corona PCB7 3 High voltage supply Charge corona and grid bias without VR correction PCB7 4 High voltage supply Charge corona and grid bias for I...

Page 435: ...ray lock solenoid 2 Paper tray unit SOL2 39 Tray lock solenoid 3 Paper tray unit SOL3 40 Pick up solenoid SOL2 41 Upper tray lift motor Up M3 42 Lower tray lift motor Up M4 43 Tray lift motor 1 Paper tray unit Up M1 44 Tray lift motor 2 Paper tray unit Up M2 45 Tray lift motor 3 Paper tray unit Up M3 46 Upper tray lift motor Down M3 47 Lower tray lift motor Down M4 48 Tray lift motor 1 Paper tray ...

Page 436: ...key is pressed the main motor starts turning and the development unit change solenoid is de energized to shift the development unit from black to color While the key is held down the development drive and toner supply clutches turn on to supply color toner After performing this output number perform No 13 Black development unit to return the color development unit to its original position Service ...

Page 437: ... 48 Lamp Voltage O O 6 51 Lamp Voltage Check O 7 70 Forced VL Detection O 8 56 Auto ADS Gain Adjustment O O O 9 83 Toner End Counter Clear O NOTE After replacing the exposure lamp or cleaning the optics check the lamp voltage setting X by SP48 Then check the target lamp voltage Y decided by the process control through SP51 press the key for reading Perform the forced VL detection SP70 Y X times Ch...

Page 438: ...lor ID Detection 0 5 copies 1 10 copies SP79 Color Bias 0 N 1 HH 2 H 3 L 4 LL IMAGE DENSITY Mode No Description Data SP34 ADS Density 0 N 1 H 2 L SP48 Lamp Voltage only when changing the drum 50 75V SP46 Highlight Bias ID Level 7 0 N 1 D 2 L 3 LL SP79 Color Bias 0 N 1 HH 2 H 3 L 4 LL OTHER COPY IMAGE Mode No Description Data SP41 Lead Edge Erase 0 15 0 5mm step SP42 Registration 0 15 0 5mm step SP...

Page 439: ...SP101 6 Total Duplex Counter SP101 9 Paper Tray Unit Counter SP101 10 By pass LCT Counter SP101 17 Original Counter ADF SP110 1 Drum Counter SP110 2 Black Developer Counter SP120 1 to 9 SC Counter SP130 1 to 14 Jam Counter SP165 ID Sensor PWM Output Check SP166 V Sensor PWM Output Check SP167 ADS Gain Output Check 3 4 OPTIONAL EQUIPMENT INSTALLATION The following table shows SP modes for enabling ...

Page 440: ...round TP105 VCC 5V TP106 DRUM AC Feedback voltage for drum current ac component TP107 DRUM DC Feedback voltage for drum current dc component TP108 P SEN ID sensor output TP109 VL V sensor output TP110 ADS ADS sensor output TP111 I DRUM Feedback voltage for drum current TP112 DCPOL Reference voltage for drum current dc component s polarity TP113 FUSER Fusing thermistor reference voltage Room temp 4...

Page 441: ...essary Optics Ozone Filter R R R PAPER FEED for each paper feed station Paper Feed Rollers LCT By pass feed C R R R Water replace pick up feed and separation rollers as a set Paper Feed Roller Paper Tray C R R R Water replace with friction pad ass y as a set Friction Pad Ass y C R L R L R L Water Albania 2 grease Refer to NOTE1 Separation Roller Slip Clutch LCT By pass feed L L L Mobil temp 78 Ref...

Page 442: ...Blade R R R Cleaning Seal C C C Replace if necessary Cleaning Brush R R R Used Toner Tank C C C C Empty used toner DEVELOPMENT UNIT Developer R R R Development Unit Gears C L Grease G 40M Refer to NOTE 2 Upper Seal C C C Side Seals C C C FUSING UNIT Hot Roller C R L C Replace if necessary Grease Barrierta L55 2 Refer to NOTE 3 Pressure Roller C R L C Replace if necessary Grease Barrierta L55 2 Ref...

Page 443: ...RAY UNIT A325 A326 Paper Feed Roller C R R R Water replace with friction pad ass y as a set Friction Pad Ass y C R L R L R L Water Albania 2 grease Refer to NOTE 1 Paper Tray Bottom Plate Pad R R R Water DOCUMENT FEEDER A497 for originals Transport Belt C R R R Belt cleaner replace if necessary Pick up Roller C C C C Water replace if necessary Feed Roller C R R R Water replace if necessary Frictio...

Page 444: ...ansport Stopper C Alcohol Staple Unit Guide Rod Pad L Launa oil The location of the parts which should be lubricated at PM are shown in the following figures Note1 Paper feed Section 1 Separation Roller Slip Clutch Clean the slip clutch A Then lubricate the inner surface of the spring B and the three grease holes C of the hub D with Mobil Temp 78 every 80K 2 Friction Pad Assembly Replace the frict...

Page 445: ...ry 240K 2 Development Drive Gear Replace the development drive gear E every 240K Then lubricate it with Silicone Grease G 40M 3 Development Unit Gears Clean the gears F located on the rear side of development unit Then lubricate them with Silicone Grease G 40M every 240K E F Color C B D A F Black PREVENTIVE MAINTENANCE SCHEDULE 12 February 1992 4 42 ...

Page 446: ...cessary Then lubricate the roller shaft C bushings D and bearings E with BARRIERTA L55 2 grease 2 Fusing Drive Gears Replace the fusing drive gears F every 160K Then lubricate them and their shafts G with Grease G501 D A C D F G G C B E E Service Tables 12 February 1992 PREVENTIVE MAINTENANCE SCHEDULE 4 43 ...

Page 447: ... A Then lubricate the clutch spring with Mobil Temp 78 every 80K Note5 Bushings Lubricate the following bushings with machine oil every 160K 1 Paper Feed LCT By pass Feed 2 Relay Rollers and Tray Paper Feed B A PREVENTIVE MAINTENANCE SCHEDULE 12 February 1992 4 44 ...

Page 448: ... 3 Registration Roller 4 Development Shift Section 5 Exit Roller Rear Front Service Tables 12 February 1992 PREVENTIVE MAINTENANCE SCHEDULE 4 45 ...

Page 449: ... 6 Duplex Tray PREVENTIVE MAINTENANCE SCHEDULE 12 February 1992 4 46 ...

Page 450: ...sing headaches irritations or other discomforts Replace at regular intervals Paper Feed Registration Paper Feed Roller Pick up Roller Separation Roller Friction Pad Ass y Bottom Plate Pad This machine uses paper trays and LCT for paper feeding If paper dust adheres to the paper feed roller friction pad ass y and bottom plate pads are worn out paper may not feed correctly and or skewing may result ...

Page 451: ...intervals V Sensor If paper dust or toner accumulates on the V sensor the image density cannot be controlled correctly This results in light or dark copies Clean this sensor at regular intervals Around Drum Erase Lamp If toner accumulates on the erase lamp a dirty background may occur in the erased area that becomes progressively worse in long copy runs Also this affects sensor pattern detection c...

Page 452: ...m Plate Pads This machine uses paper trays for paper feeding If paper powder or dust adheres to the paper feed roller friction pad ass y and bottom plate pads are worn out paper may not feed correctly and or skewing may result Cleaning or replacement is required at regular intervals ARDF Transport Belt A dirty transport belt can leave stains on copies Clean or replace the belt at regular intervals...

Page 453: ... the ID and V sensors with a blower brush 2 Clean the pick off pawls and the toner shield glass 3 Clean the green filter with a dry cloth Discharge any static electricity on the filter 4 Install a new drum 5 Clean the QL and PTL filters and erase lamp unit with a dry cloth discharge any static before installation 6 Clean the end blocks casing and transfer guide plate with water or alcohol 7 Replac...

Page 454: ...d paper tray bottom plate pads Albania 2 5 Replace the duplex paper feed roller 6 Replace the by pass feed bottom plate pad 7 Lubricate the duplex clutch spring Mobil Temp 78 1 Clean the entrance and exit guide plates 2 Inspect the thermistor 3 Replace the stripper pawls 4 Lubricate the drive gears Grease G501 1 Clean the thermistor 2 Replace the hot roller pressure roller and drive gears Barriert...

Page 455: ...he drum initial setting SP66 4 Perform the auto Vsg Veg adjustment SP54 5 Adjust the exposure lamp voltage SP48 6 Perform the auto ADS gain adjustment SP56 7 Reset the toner end counter SP83 9 Rear side every 80 K 10 Exterior every 80 K 11 Copy Quality Replace the ozone filter ceramic for the fusing exhaust fan every 400 K 8 Exit Unit every 80 K Replace the ozone filter ceramic for the exhaust blo...

Page 456: ...SECTION 5 REPLACEMENT AND ADJUSTMENT ...

Page 457: ...REMOVAL 1 1 1 Front Door 1 Open the front door A 2 Pull out the 2 pins B 1 1 2 Front Upper Cover 1 Open the front door and remove 2 Remove the front upper cover C 3 screws A B B C Replacement Adjustment 12 February 1992 EXTERIOR AND INNER COVERS 5 1 ...

Page 458: ...emove the left and front side screws C of the front upper cover 1 screw 4 Remove the left cover D 5 screws NOTE Remove the sorter sorter stapler and sorter adapter if they are installed 1 1 5 Left Bottom Cover 1 Remove the left cover 2 Remove the left bottom cover E 4 screws NOTE Remove the sorter sorter stapler and sorter adapter if they are installed A C D B E C EXTERIOR AND INNER COVERS 12 Febr...

Page 459: ...e right upper cover A 3 Open the LCT top cover B 4 Open the by pass feed table C and remove the right upper cover Type 1 1 Remove the rear cover 2 Open the by pass feed table 3 Remove the right upper cover 4 screws B A C Replacement Adjustment 12 February 1992 EXTERIOR AND INNER COVERS 5 3 ...

Page 460: ...ver B 2 screws 1 1 8 Right Lower Covers for Type 2 and Type 3 1 Open the LCT top cover C 2 Remove the LCT front cover D 1 screw 3 Remove the right lower front cover E 2 screws 4 Close the LCT top cover 5 Remove the LCT rear cover F 1 screw 6 Remove the right lower rear cover G 2 screws C G F D E B A EXTERIOR AND INNER COVERS 12 February 1992 5 4 ...

Page 461: ... either is installed 1 Remove the left scale A 2 shoulder screws 2 Remove the exposure glass B 3 Remove the right and left optics covers C D 1 screw each 4 Remove the top cover E 4 screws E C B A D Replacement Adjustment 12 February 1992 EXTERIOR AND INNER COVERS 5 5 ...

Page 462: ...e of the registration roller shaft through a hole in the bracket 3 While holding the Allen key remove the fixing screw B 4 Remove the registration knob C and paper guide release lever D 1 screw each 5 Remove the inner cover E 2 screws C E D C A B EXTERIOR AND INNER COVERS 12 February 1992 5 6 ...

Page 463: ...Slide the other edge out from under the right glass holder C Remove the exposure glass NOTE When reinstalling the exposure glass make sure of the following a That the red mark on the edge of the glass faces up This side is smoother and it generates less static electricity when the DF is used C B A Replacement Adjustment 12 February 1992 OPTICS 5 7 ...

Page 464: ...or reflectors will be affected by heat from the lamp and will cause discoloration 1 Turn off the main switch 2 Remove the exposure glass See Exposure Glass Removal 3 Move the first scanner A to the cutout position at the front and rear frames B See illustration 4 Remove the reflector cover C 2 screws 5 Remove the rear terminal bracket D 1 screw A C B B D OPTICS 12 February 1992 5 8 ...

Page 465: ...ble the copier 9 Check the exposure lamp voltage setting X by SP48 10 Check the target lamp voltage Y by SP51 press key for reading 11 Perform the forced VL detection SP70 Y X times 12 Check the target lamp voltage by SP51 13 Perform the forced VL detection SP70 a few more times 14 Check the target lamp voltage Z by SP51 again and confirm that the voltage Z is the same as that in step 12 If not re...

Page 466: ...tch 2 Remove the exposure glass 3 Slide the 1st scanner about 150 mm 6 to the right 4 Remove the refector cover A 2 screws 5 Remove the exposure lamp leads B from the terminals on both sides of the thermoswitch C 6 Remove the thermoswitch bracket D 1 screw 7 Remove the thermoswitch from the bracket 2 screws and replace it B E C D B A OPTICS 12 February 1992 5 10 ...

Page 467: ...TICS FAN FILTER CLEANING AND REPLACEMENT 1 Turn off the main switch 2 Remove the right optics cover A 1 screw 3 Clean or replace the optics fan filter B B A Replacement Adjustment 12 February 1992 OPTICS 5 11 ...

Page 468: ...s Exposure glass C Top cover D 6 screws Rear cover E loosen 2 screws and remove 2 screws Front upper cover F 3 screws Operation panel G 4 screws and 2 connectors Left scale bracket H 2 screws 1 connector and 1 harness clamp Lens cover I 2 screws and 1 connector Reflector over I 2 screws C G B D A E H F I J OPTICS 12 February 1992 5 12 ...

Page 469: ... board assembly B 1 screw 4 Loosen the screws C for the tension brackets of the long and short scanner drive belts 2 screws each 5 Remove 2 tension springs D 6 Remove the scanner drive motor E 2 screws 1 connector 7 Remove the 3rd scanner home position sensor F 1 screw D D F E A C C B Replacement Adjustment 12 February 1992 OPTICS 5 13 ...

Page 470: ... Front side of the scanner drive belts 8 Loosen the screws for the tension bracket A 9 Remove 2 tension springs B 10 Remove the 2nd scanner C loosen 2 screws A B A B C OPTICS 12 February 1992 5 14 ...

Page 471: ...f the 1st scanner and put the 1st scanner B on the machine as shown 12 Remove the front and rear guide rails C D 2 screws each 13 Remove the short and long scanner drive belts as shown A E A A E B A D C C Replacement Adjustment 12 February 1992 OPTICS 5 15 ...

Page 472: ... position E as shown and insert the long scanner drive belt to the belt clamp 6 Set the 2nd scanner at the position F as shown and install the belt clamp for the short scanner drive belt 1 screw each NOTE When fixing the 2nd scanner make sure the 1st scanner is set at the position E step 5 7 Reassemble all the necessaryparts 2 5 3 1st and 2nd Scanner Position Adjustment 1 Make a copy sample perfor...

Page 473: ...e lens cover 3 Remove the 2 fixing screws of the rear scanner guide rail A 4 Slide the 3rd scanner to the left 5 While holding up the rear scanner guide rail remove the 3rd scanner drive motor assembly 2 screws and 1 connector 6 Separate the motor B from the bracket C 2 screws and replace A C B Replacement Adjustment 12 February 1992 OPTICS 5 17 ...

Page 474: ...following parts The exposure glass The top cover The rear cover The lens cover The left scale bracket 3 Slide the 1st scanner A half of the way to the right 4 Remove the 2 fixing screws of the rear scanner guide rail A 5 Remove the lens drive wire B as shown B A C OPTICS 12 February 1992 5 18 ...

Page 475: ...e wire B three and a half turns around the pulley and then wrap the pulley with tape as shown 3 Reinstall the pulley 4 Position the wire in the cutout of the shutter plate C and pulley D 5 Hook the spring E as shown E C D B A Replacement Adjustment 12 February 1992 OPTICS 5 19 ...

Page 476: ...CEMENT 1 Remove the lens drive wire see Lens Drive Wire Replacement 2 Remove the lens drive motor assembly 2 screws and 1 connector 3 Separate the motor A from the bracket B 2 screws and replace B A OPTICS 12 February 1992 5 20 ...

Page 477: ... screw and replace 6 Remove the mylar D from the old original size sensor and reinstall it on the new original size sensor as shown 7 Reassemble all the parts 8 Check the original size sensor s function by SP 8 input no 72 B D C A Original size Data A3 7F 11 x 17 6F B4 3F A4 Lensthwise E A4 sideways 81 2 x 11 lengthwise 7 B5 length wise 6 B5 sideways 81 2 x 11 sideways 3 A5 lengthwise 0 A5 sideway...

Page 478: ... release lever B to the right and pull out the black development unit C half way Holding the toner supply unit D with your right hand and the bottom of the development unit with your left hand pull the unit all the way out Place the unit on a clean sheet of paper NOTE The color development unit or cover plate should be installed before installation C D A B DEVELOPMENT AND TONER SUPPLY 12 February ...

Page 479: ...lever A pull out the color development unit B until it stops 3 Holding the strap C of the color development unit with the left hand pull out the color development unit while lifting the color development unit lock lever A C A B Replacement Adjustment 12 February 1992 DEVELOPMENT AND TONER SUPPLY 5 23 ...

Page 480: ...o the paper NOTE Dispose of the used developer according to local regulations 5 Make sure that no developer remains on the development roller or in the development unit 6 Pour one pack of developer into the development unit while turning the paddle roller knob 7 Reinstall the toner supply unit and set the development unit in the machine 8 Perform initial setting for new black developer using SP65 ...

Page 481: ...se of the used developer according to local regulations 5 Make sure that no developer remains on the development roller or in the development unit 6 Pour one pack of developer into the development unit while turning the paddle roller knob 7 Reinstall the toner supply unit and set the color development unit in the machine 8 Perform initial setting for new color developer using SP10 A B Replacement ...

Page 482: ... spring C and open the development unit change levers D 6 Remove the development unit shift clutch assembly E 7 Lubricate the clutch spring F with Mobil Temp 78 and reassemble the shift clutch 8 Reinstall the shift clutch assembly as shown 9 Turn the cam plate G clockwise about 90 C The highest position of the cam plate should be at the top NOTE The shift clutch must be reinstalled as an assembly ...

Page 483: ...bly 3 Remove the 3 gears A 1 E ring 4 Remove the support bracket B 3 screws and gear C 5 Remove the toner supply clutch assembly D 2 screws 1 E ring 1 harness clump and 1 connector 6 Remove the toner supply clutch E 1 E ring A B C D E Replacement Adjustment 12 February 1992 DEVELOPMENT AND TONER SUPPLY 5 27 ...

Page 484: ... off the main switch 2 Remove the color development unit 3 Remove the rear cover 4 Swing out the main control board assenbly 1 screw 5 Unhook the color development switch A and replace 1 connector A DEVELOPMENT AND TONER SUPPLY 12 February 1992 5 28 ...

Page 485: ...down the release lever B 2 Place a sheet of paper under the cleaning unit 3 Turn the cleaning unit release lever C counterclockwise 4 While holding up the cleaning blade release lever D pull out the cleaning unit E Place the unit on a clean sheet of paper A B C D E Replacement Adjustment 12 February 1992 CLEANING 5 29 ...

Page 486: ...ew 3 While holding up the cleaning blade release lever install the new cleaning blade between the blade bracket C and the blade scraper NOTE a Do not touch the edge of a new cleaning blade as it is damaged easily b After installing a new cleaning blade make sure that the blade swivels smoothly A B C CLEANING 12 February 1992 5 30 ...

Page 487: ...leaning side bracket 1 E ring and gear D 3 Remove the gear and the rear cleaning side bracket and replace the cleaning brush NOTE a Do not touch the cleaning brush surface Handle only the shaft ends b Do not bend or damage the entrance seal c This screw E is a tapping screw Do not tighten it too much as this will strip the resin threads B C E D A Replacement Adjustment 12 February 1992 CLEANING 5 ...

Page 488: ...R REPLACEMENT 1 Remove the cleaning blade and brush See Cleaning Blade and Brush Replacement 2 While holding up the cleaning blade release lever A remove the blade scraper B 2 screws B A CLEANING 12 February 1992 5 32 ...

Page 489: ... local regulations 6 Reinstall the used toner tank cover 7 Reinstall the cleaning unit 8 While pressing both 1 and 3 on the operation panel number keys turn on the main switch in order to access the SP mode NOTE Release the number keys after confirming that the call service indicator and the copy counter number 0 are blinking 9 Enter 83 using the number keys and press the enter key 10 Enter 1 usin...

Page 490: ...ape remains on the casing surface 6 Place a new strip of 2 sided tape C on the lower casing surface The upper edge D of the tape must be flush with the edge E of the projection as shown in the illustration 7 Place the new entrance seal on the 2 sided tape as shown in the illustration NOTE a The lower edge F of the entrance seal must be aligned with the edge G of the lower casing b Make sure that t...

Page 491: ...copier NOTE When removing several paper trays at a time make sure that the paper tray is returned to the original feeding station To identify the original feeding station each paper tray has its own decal on the right side A Copier Upper Paper Tray B Copier Lower Paper Tray C Paper Tray Unit Tray 1 D Paper Tray Unit Tray 2 E Paper Tray Unit Tray 3 A B C Replacement Adjustment 12 February 1992 PAPE...

Page 492: ...cement 1 Remove the paper tray see Paper Tray Removal 2 Remove the feed roller guide A 1 screw 3 Remove the feed roller assembly B from the shaft C 4 Replace the feed roller hub D from the old to the new feed roller NOTE When replacing the feed roller hub make sure that the projections of the hub engage with the grooves of the feed roller 5 Reassemble the copier B A C D PAPER FEED 12 February 1992...

Page 493: ...ace D of the new friction pad assembly slightly with Albania 2 grease 6 Install the new friction pad assembly on the mounting bracket and reassemble the paper tray NOTE If the friction pad assembly is replaced for several paper trays at the same time make sure that the friction pad holder mounting bracket is placed back to the original paper tray To identify the original position the mounting brac...

Page 494: ...little 3 Close the by pass feed table 4 Non LCT machine Remove the right lower cover 4 screws LCT machine Lower the LCT bottom plate and remove the paper stack Open the LCT top cover and remove the LCT cover plate C 2 screws 5 Remove the pick up roller D 1 snap ring 6 While lifting up the paper end feeler E remove the paper feed roller F 1 snap ring 7 Remove the separation roller G 1 snap ring B A...

Page 495: ...utch B with the clutch cover C off the shaft 3 Separate the slip clutch into the three components 4 Clean the clutch spring D and the clutch hubs E 5 Put Mobil Temp 78 in the three grease holes F of the drive hub G and the inner surface of the spring A B C D G F E Replacement Adjustment 12 February 1992 PAPER FEED 5 39 ...

Page 496: ...fting the by pass feed table a little 3 Remove the right upper cover and the rear cover 4 Remove the fixing screw C for the by pass feed rear support pin D 5 While sliding the by pass feed rear support pin to the rear slide the by pass feed table E off the by pass feed front support pin F D C E F B A PAPER FEED 12 February 1992 5 40 ...

Page 497: ... with the stopper bracket B 2 Relay Feed Clutch 1 Remove the relay feed clutch C 1 E ring 1 connector and 1 wire saddle NOTE When reinstalling the clutch make sure that the clutch stopper groove engages with the stopper bracket D 3 Upper Paper Feed Clutch 1 Remove the stopper bracket D 1 screw 2 Remove the upper paper feed clutch E 1 E ring 1 connector and 1 wire saddle NOTE When reinstalling the ...

Page 498: ...high voltage supply board assembly B from the copier base plate 1 screw 2 wire saddles for bias cable 4 Remove the stopper bracket B 1 screw 5 Remove the lower paper feed clutch C 1 E ring 1 connector 1 wire saddle NOTE When reinstalling the clutch make sure that the clutch stopper pin D engages with the groove of the stopper bracket B A C D B PAPER FEED 12 February 1992 5 42 ...

Page 499: ...aust blower assembly A 2 screws and 1 connector 5 Remove the exhaust blower bracket B 1 spring C and 1 screw 6 Remove the stopper bracket D 1 screw 7 Remove the registration clutch E 1 E ring 1 connector 1 wire saddle NOTE When reinstalling the clutch make sure that the clutch stopper pin F engages with the groove of the stopper bracket A D B C F E Replacement Adjustment 12 February 1992 PAPER FEE...

Page 500: ...r supply board assemblies 1 screw each 4 Take the high voltage cables off the hooks on the exhaust blower housing 5 Remove the exhaust blower assembly 2 screws and 1 connector 6 Remove the high voltage supply board assembly from the copier base plate 1 screw 3 wire saddles 6 connectors 7 Pull out the paper lift motor assembly A from the copier 2 screws 3 connectors 3 wire saddles 8 Remove the tray...

Page 501: ...each 3 Remove the right front lower and right rear lower covers 2 screws each 4 Remove the LCT A from the copier 4 screws and 3 connectors 5 Remove the belt stoppers B 1 screw 6 Remove the pulley C 1 retaining ring 7 Replace the LCT drive belt A B D C B D Replacement Adjustment 12 February 1992 PAPER FEED 5 45 ...

Page 502: ...ve the motor cover plate A 2 screws 3 Remove the LCT lift motor assembly B 4 screws 4 rubber rings 1 connector 4 Remove the E ring C from the worm gear shaft 5 Slide the bushing D inwards and remove the worm gear assembly E 6 Remove the LCT lift motor F 2 screws D C A E F B PAPER FEED 12 February 1992 5 46 ...

Page 503: ...C to the right to the lock position 3 Move the development release lever D to the right and pull the black development unit half way out Holding the toner supply unit with your right hand and the bottom of the development unit with your left hand pull the unit all the way out Place the unit on a clean sheet of paper A B C D Replacement Adjustment 12 February 1992 AROUND THE DRUM 5 47 ...

Page 504: ... While lifting the color development unit lock lever A pull the color development unit B until it locks 2 Hold the belt C of the unit and pull out the unit while lifting the lock lever again 3 Place the unit on a clean sheet of paper C B A AROUND THE DRUM 12 February 1992 5 48 ...

Page 505: ... While holding up the cleaning blade release lever B remove the cleaning unit Place the unit on a clean sheet of paper 6 Remove the charge corona unit C together with the wire cleaner 1 screw A B C Replacement Adjustment 12 February 1992 AROUND THE DRUM 5 49 ...

Page 506: ...7 Remove the fixing screw A securing the drum stay and pull out the drum unit B gently along the rail 8 Place the drum unit on a clean sheet of paper B A AROUND THE DRUM 12 February 1992 5 50 ...

Page 507: ...4 While holding the front and rear ends of the drum remove the drum from the drum unit by lifting it up 5 Remove the bearing and the bearing screw E from the old drum and install them on a new drum NOTE Keep the drum protective sheet on the new drum 6 Clean the ID sensor and the V sensor with a blower brush see ID sensor Cleaning and Replacement V sensor cleaning and Replacement 7 Clean the toner ...

Page 508: ...er 12 While pressing both 1 and 3 of the number keys turn on the main switch to enter the SP mode NOTE Release the number keys after confirming that the call service indicator and the copy counter number 0 are blinking 13 Enter 66 using the number keys and press the enter key Press 1 then the enter key The copier performs the drum initial setting and the beeper sounds 5 times 14 Enter 54 using the...

Page 509: ... to the rear Lifting the front side of the assembly remove it from the drum unit 4 While releasing the shaft stopper C pull out the pick off pawl shaft D from the assembly NOTE Be careful not to lose the pick off pawl springs E 5 Install the new pick off pawls F on the pick off pawl holder and set the pick off pawl springs NOTE a Make sure that the pick off pawls are positioned correctly on the pi...

Page 510: ...cement 2 Remove the ID V sensor bracket B from the drum unit 2 screws 3 Remove the ID sensor board C from the drum unit by simply lifting it up 4 Reassemble the drum unit and install all the removed units in the copier NOTE When reinstalling the ID V sensor bracket make sure that the spurs D are correctly positioned as shown 5 Perform the ID V sensor adjustment see ID Sensor and V Sensor Adjustmen...

Page 511: ...m the drum side Replacement 2 Remove the ID V sensor bracket B from the drum unit 2 screws 3 Remove the drum stay C 2 long screws from the drum unit 4 Remove the front drum cover D from the unit 5 Remove the V sensor board E from the drum unit 1 connector 6 Couple the V sensor connector with a new V sensor board and install the board on the drum unit C D G F E A H B Replacement Adjustment 12 Febru...

Page 512: ...ioned and that no wire is nicked or pinched by the drum front cover 8 Reassemble the drum unit and install all the removed units in the copier NOTE When reinstalling the ID V sensor bracket make sure that the spurs C are correctly positioned as shown 9 Perform the ID V sensor adjustment see ID Sensor and V Sensor Adjustment SP54 B A C A B AROUND THE DRUM 12 February 1992 5 56 ...

Page 513: ...th your fingers lift the glass up 4 Clean the toner shield glass and the green filter C on the drum unit top plate with a dry cloth NOTE a After cleaning the green filter discharge static electricity on the filter by touching it with your finger b Do not clean the green filter with water or any other cleaning solution as the filter has an antistatic coating 5 Reassemble the drum unit NOTE When rei...

Page 514: ... and install the unit in the drum unit NOTE Make sure that the erase lamp unit is hooked correctly with positioning pawls and the harness is set in position 4 Reassemble the drum unit NOTE When reinstalling the drum unit top plate be careful not to nick or pinch the erase lamp unit harness 5 If you have replaced the erase lamp unit with a different type standard type and edit type set SP84 Editing...

Page 515: ...rum side 4 Clean the PTL filter D with a blower brush and a dry cloth Discharge static electricity on the filter by touching it with your finger 5 Reinstall the PTL filter assembly in the copier NOTE a Make sure that the PTL lower mylar E is positioned under the pre transfer lamp F b Slide the top mylar towards the front and the rear to make sure that the front and rear sides of the PTL top mylar ...

Page 516: ...Cleaning And Replacement 2 Remove the registration clutch from the copier see Registration Clutch Replacement 3 Slide out the pre transfer lamp A from the copier 1 screw 1 connector and 2 wire saddles 4 Install a new pre transfer lamp and reassemble the copier A AROUND THE DRUM 12 February 1992 5 60 ...

Page 517: ... filter A 2 Clean the filter with a dry cloth and discharge static electricity on the filter by touching it with your finger 3 Reinstall the filter in the copier NOTE When inserting the quenching filter be careful not to break it A Replacement Adjustment 12 February 1992 AROUND THE DRUM 5 61 ...

Page 518: ...f the drum drive belt from the tension pulley C and lower the tension pulley 4 Remove the tension pulley D 1 E ring for the development drive belt E 5 Slide out the quenching lamp F from the copier 1 screw and 1 connector 6 Install a new quenching lamp and reassemble the copier D E F B C A AROUND THE DRUM 12 February 1992 5 62 ...

Page 519: ...the charge corona wire E Remove both corona wires NOTE a Be careful not to damage the corona wire tension spring b Be careful not to lose the tension springs and the damper rings F 5 Clean the charge corona casing and the end blocks NOTE a Clean the casing with water first to remove NOx Then clean it with alcohol if any toner still remains on the casing b Clean the end blocks with a blower brush t...

Page 520: ...charge d Make sure that the damper rings are correctly positioned in the front end block as shown e Make sure that the corona wires are correctly positioned in both the front and rear end blocks as shown f Do not change the corona wire height by turning the wire height adjustment screw 7 Install the front and rear end block covers and set the wire cleaner NOTE a Do not secure the plastic screw J f...

Page 521: ...n the wire height adjusting block and the screw holder edge to 8 0 mm by turning the wire height adjusting screw B as shown in the illustration 3 Reassemble the charge corona unit and set it in the copier 4 Make copies with the test chart and compare the front and rear gray scales with those of the reference copy made before replacing the front end block Adjust the corona wire height by turning th...

Page 522: ... anchor grid plate be careful not to break off the hook B 3 Remove the old grid plate C from the charge corona unit 4 Set a new grid plate on the rear hooks D first then on the front hooks of the anchor plate by closing the anchor plate NOTE a Do not touch the charge grid plate with oily bare hands b Do not bend the charge grid plate or make any dent on it to avoid uneven charge D C A B AROUND THE...

Page 523: ...move the front and rear end block covers B 2 hooks each NOTE When removing the end block covers be careful not to break off the side hooks 4 Remove the wire hook cover C from the rear end block 5 Unhook the corona wire tension springs D and remove the transfer and separation corona wires NOTE Be careful not to damage or lose the tension springs A B C B D Replacement Adjustment 12 February 1992 ARO...

Page 524: ...not loosen the screws securing the transfer entrance guide mylar bracket 7 Install a new transfer and separation corona wires NOTE a Do not touch the corona wires with oily bare hands b Do not bend or scratch the corona wires c When installing the separation corona wire make sure that the wire junction is positioned in the rear end block d Make sure that the corona wires are correctly positioned i...

Page 525: ...nit cover A while pushing the release lever B and pull out the fusing unit C until it stops 4 Remove the fusing unit lock screw D 1 shoulder screw 5 Remove the fusing unit completely while pushing the release lever NOTE Before completely removing the fusing unit support the bottom of the fusing unit D B C A Replacement Adjustment 12 February 1992 FUSING 5 69 ...

Page 526: ...Removal 2 Remove the fusing unit cover A 2 shoulder screws 1 screw 3 Remove the fusing lamp harness B from the front and rear fusing lamp terminals C 1 screw each 4 Remove the rear lamp holder D 1 screw and replace the fusing lamp E A E D C B FUSING 12 February 1992 5 70 ...

Page 527: ... I front and rear collars J front fusing bearings K and then remove the hot roller L NOTE a Lubricate the roller shaft M and fushing N with BARRIERTA L55 2 grease b Peel off 3 cm 1 inch from both ends of the protective sheet and install the hot roller c Before setting the pressure springs remove the rest of the protective sheet d Lubicate the fusing drive gears and their shafts with grease G501 F ...

Page 528: ...5 Lift the front end of the pressure roller C and slide along with its bearings out the front side of the unit 6 Remove the front and rear bearings and the fusing knob D 1 screw 7 Replace the pressure roller NOTE When installing a new pressure roller a Lubricate the roller shaft E and bearings F with BARRIERTA L55 2 grease b Lubricate the fusing drive gears and their shafts with grease G501 A C B ...

Page 529: ...ng Unit Removal 2 Lower the fusing exit assembly A 3 Remove the pawl pressure springs B and pawl release springs C 4 Remove the 3 fusing pawl brackets D 5 screws 5 Remove the fusing stripper pawls E and replace D C A B E Replacement Adjustment 12 February 1992 FUSING 5 73 ...

Page 530: ...r screws 1 screw 3 Lower the fusing exit assembly B 4 Remove the thermofuse harness lead C 1 screw from the front fusing lamp terminal and disconnect the thermofuse harness from the fusing harness D 5 Remove the thermofuse holder E 1 screw then remove the thermofuse 2 plate clamps A C B E D FUSING 12 February 1992 5 74 ...

Page 531: ...emoval 2 Remove the fusing unit cover A 2 shoulder screws 1 screw 3 Lower the fusing exit assembly B 4 Disconnect the thermistor harness C from the fusing harness 5 Remove the fusing thermistor D 1 screw 2 plate clamps A D B C Replacement Adjustment 12 February 1992 FUSING 5 75 ...

Page 532: ...e operation panel number keys turn on the main switch to access the SP mode 3 Enter 52 fusing temperature check mode using the number keys and then press the enter key 4 The current fusing temperature is indicated on the three digit indicator 5 Turn the main switch off FUSING 12 February 1992 5 76 ...

Page 533: ...g both 1 and 3 on the operation panel number keys turn on the main switch to access the SP mode 3 Enter 49 fusing temperature adjustment mode using the number keys and then press the enter key 4 The current temperature setting blinks in the thre digit indicator Enter the new temperature setting with the number key then press the enter key 5 Turn the main switch off Replacement Adjustment 12 Februa...

Page 534: ...the duplex tray A and remove the tray stopper brackets B C from both side rails as shown 1 screw each then remove the duplex tray from the copier 3 Remove the side inner cover D 3 screws 4 Remove the front inner cover E 2 screws B A C D E DUPLEX 12 February 1992 5 78 ...

Page 535: ...sconnect the sensor connector F from the jogger home position sensor 9 Disconnect the connectors G H from the duplex turn gate solenoid and from the duplex entrance sensor 10 Remove the duplex unit I 4 screws from the tray NOTE Hold both sides of the duplex unit frame when lifting the duplex unit out of the tray I A B E D G H D F C Replacement Adjustment 12 February 1992 DUPLEX 5 79 ...

Page 536: ...ring C to the cam clutch D and the duplex lift lever E as shown NOTE When installing the duplex unit make sure of the following a The positioning pin F fits through hole G in the side plate b The positioning rib H fits through the cutout I in the side plate c The sensor harness J is not caught under the unit frame D E G B I J F H A C G DUPLEX 12 February 1992 5 80 ...

Page 537: ...om both ends of the paper feed roller shaft 6 Move the front and rear bushings F of the paper feed roller shaft inward and remove the paper feed roller assembly 7 Remove the bushing the rear stack roller G 1 E ring and rear paper flattener H from the shaft 8 Remove the duplex feed roller I from the shaft 1 E ring 9 Remove the feed roller bushing J from the roller and place it in the new roller 10 ...

Page 538: ... screws from the duplex unit 3 Remove the friction rollers C 1 E ring each from the shaft D 4 Install new friction rollers on the shaft and reassemble the duplex unit NOTE This friction roller has a one way clutch Be sure to install the roller so that it rotates in the direction of the arrow see illustration A D C B DUPLEX 12 February 1992 5 82 ...

Page 539: ...and front inner covers 2 Remove the clamp A and sensor bracket B 1 screw 3 Remove the jogger home position sensor C from the bracket and replace it 1 screw and 1 connector 4 Remove the clamp D and replace the jogger motor E 2 screws and 1 connector C E D B A Replacement Adjustment 12 February 1992 DUPLEX 5 83 ...

Page 540: ... Remove the duplex motor assembly A 2 screws 3 Separate the duplex motor B from the bracket C and replace it 2 screws NOTE When installing a new duplex motor make sure that the duplex motor thermistor is secured on the motor bracket by the screw for the motor A B C DUPLEX 12 February 1992 5 84 ...

Page 541: ...quent VL corrections As an exception for this 0 5 V change of SP48 data is effective to the light intensity even after the initial VL pattern detection Because the VL correction changes the lamp voltage 1 V step 1 Turn the main switch off 2 Clean the following parts Item No Section Method 1 Optics mirrors lens reflectors and exposure glass Damp cotton and blower brush 2 Corona wires charge transfe...

Page 542: ...twice 2 Change the exposure lamp voltage data displayed in the three digit indicator Use the number keys and follow these rules If image density is too dark increase the setting If image density is too light decrease the setting NOTE The data can be set between 50 and 75 in 0 5 steps The default setting is 63 3 Press the key twice and then make a copy at the manual image density level 4 4 Confirm ...

Page 543: ...erwise the total charge corona current will change causing incorrect toner density control 1 Clean the optics components and the charge corona wire 2 Place a test chart on the exposure glass and make an A3 11 x 17 copy 3 If the side to side variations of the gray scales is not within the adjustment standard turn off the main switch and remove the exposure glass see Exposure Glass Removal 4 Positio...

Page 544: ...tion the light intensity will be corrected to make the VL pattern similar in density to the initial setting by subsequent VL corrections This means that the effect of changing black bias is gradually eliminated SP37 Black Bias Data Density Development Bias Correction Voltage 0 Normal 0 V 1 Darkest 40V 2 Darker 20V 3 Lighter 20V 4 Lightest 40V 1 Turn the main switch off 2 While pressing both 1 and ...

Page 545: ...st 40V 1 Turn the main switch off 2 While pressing both 1 and 3 on the operation panel number keys turn on the main switch NOTE Release the number keys after confirming that the Call Service indicator and the copy counter number 0 are blinking 3 Enter 79 using the number keys and press the key 4 Change the setting displayed in the three digit indicator by the number keys Determine the new setting ...

Page 546: ...Voltage 0 Normal 240V 1 Darker 200V 2 Lighter 280V 3 Lightest 320V 1 Turn the main switch off 2 While pressing both 1 and 3 on the operation panel number keys turn on the main switch NOTE Release the number keys after confirming that the Call Service indicator and the copy counter number 0 are blinking 3 Enter 46 using the number keys and press the key 4 Change the setting displayed in the three d...

Page 547: ...mal 220V 200V 1 Lighter 180V 160V 2 Darker 240V 220V 3 Darkest 260V 240V 1 Turn the main switch off 2 While pressing both 1 and 3 on the operation panel number keys turn on the main switch NOTE Release the number keys after confirming that the Call Service indicator and the copy counter number 0 are blinking 3 Enter 33 using the number keys and press the key 4 Change the setting displayed in the t...

Page 548: ...200V 240V 180V 220V 1 Lighter 160V 200V 140V 180V 2 Darker 220V 260V 200V 240V 3 Darkest 240V 280V 220V 260V 1 Turn the main switch off 2 While pressing both 1 and 3 on the operation panel number keys turn on the main switch NOTE Release the number keys after confirming that the Call Service indicator and the copy counter number 0 are blinking 3 Enter 75 using the number keys and press the key 4 C...

Page 549: ...upply a constant amount of toner in every copy cycle How SP30 turns on the toner supply clutch every black copy cycle NOTE On this copier the ID sensor is used in the fixed supply mode as well as in the detect mode Therefore the fixed supply mode cannot be used when the ID sensor is in an abnormal condition The fixed toner supply mode is applied only to the black development unit not to the color ...

Page 550: ...ach color can have an independent toner supply ratio The selected toner supply ratio corresponds to the color development unit installed in the copier SP31 Black Toner Supply Ratio Detect Mode Data 0 1 2 3 Supply Ratio 15 7 5 30 60 Toner Supply Ratio Parameter 2 1 4 8 SP81 Red Blue Green Toner Supply Ratio Detect Mode Data 0 1 2 3 Supply Ratio 14 7 21 28 Toner Supply Ratio Parameter 2 1 3 4 SP32 B...

Page 551: ...g or replacing the ID sensor board or V sensor board 2 At replacement of the OPC drum or RAM board on the main control board 3 If a toner supply control problem occurs 4 If memory all clear SP99 has been performed Purpose To make sure that ID sensor and V sensor functions correctly Adjustment standard ID sensor Vsg 4 0 0 2 V V sensor Vlg 4 0 0 2 V How SP54 adjusts PWM value in memory for ID sensor...

Page 552: ... cover to prevent external light from reaching the ADS sensor when performing this adjustment The beeper sounds 2 times when the adjustment about 4 seconds are completed The adjusted ADS gain data and the sensor output can be monitored by SP167 ADS gain Output Check Refer to the SP mode table for details 9 10 ADS DENSITY SELECTION SP34 When If image density of copies is too light or dirty backgrou...

Page 553: ...e exposure glass perpendicular to the left scale 5 Make a full size copy after the copier has warmed up 6 Confirm that vertical magnification is within the adjustment standard 7 If vertical magnification is not correct go through the following steps 1 Press the key twice 2 Change the vertical magnification setting displayed in the three digit indicator Use the number keys and follow these rules If...

Page 554: ...50 mm scale parallel to the left scale on the exposure glass 5 Make a full size copy after the copier has warmed up 6 Confirm that horizontal magnification is within the adjustment standard 7 If horizontal magnification is not correct go through the following steps 1 Press the key twice 2 Change the horizontal magnification setting displayed in the three digit indicator Use the number keys and fol...

Page 555: ...nt 0 80 40 default 0 6 mm per step 9 14 FOCUS ADJUSTMENT IN ENLARGE REDUCTION SP50 When If the copy image is out of focus in enlarge reduction mode after adjusting SP43 vertical magnification SP44 horizontal magnification and SP47 focus adjustment in full size Purpose To maintain correct focus in enlarge reduction mode How SP50 changes the lens position 0 1 per step in enlarge reduction mode NOTE ...

Page 556: ...per before paper returns to normal length as it does under normal condition This adjustment is not to make vertical magnification accurate but to make the first and the second images fit especially in overlay mode Since copies cannot be made in this SP mode turn the main switch off and on and make a copy to check the results of the adjustment SP45 Duplex Magnification 0 1 2 3 4 5 6 7 8 9 10 0 4 No...

Page 557: ... adjustment standard Purpose To maintain a proper lead edge erase margin Adjustment Standard 2 5 1 5 mm 0 1 0 06 How SP41 changes the erase lamp off timing SP41 Lead Edge Erase 0 15 8 default 4 0 mm to 3 5 mm 0 5 mm per step Replacement Adjustment 12 February 1992 COPY QUALITY ADJUSTMENT 5 101 ...

Page 558: ...e registration from every feeding stations Adjustment standard 0 2 mm 0 0 08 How Change the lens position perpendicular to the paper travel direction This will shift the image on the drum perpendicular to the paper travel direction 1 Turn off the main switch 2 Remove the left scale A 2 stepped screws and the exposure glass B 3 Remove the lens cover C 2 screws and 1 connector NOTE Be careful not to...

Page 559: ...r shift the lens assembly to the front If the image is shifted to the front shift the lens assembly to the rear 7 Place the exposure glass and turn on the main switch 8 Make a copy and check the results of the adjustment 9 If the adjustment is still not correct shift the lens position again CAUTION Be sure that the main switch is off when adjusting 10 Reassemble the copier A B Replacement Adjustme...

Page 560: ...perpendicular to the paper travel direction This will shift the paper position in a paper tray perpendicular to the paper travel direction 1 Pull the paper tray out 2 Move the side fences to B4 81 2 x 11 paper size position to access the fixing screws through the holes of the bottom plate 3 Loosen the 2 screws fixing the side fence positioning plate A 4 Move the rear side fence B to the desired po...

Page 561: ...n perpendicular to the paper travel direction This will shift the paper position in a duplex tray perpendicular to the paper travel direction NOTE This adjustment is not effective for copies in single 2 sided copying mode and overlay mode 1 Pull the duplex tray out and lift up the upper and lower paper guide plates 2 Loosen the 2 screws fixing the side fence positioning plate A 3 Move the side fen...

Page 562: ... How Change the LCT unit fixing position perpendicular to the paper travel direction This will shift the paper position perpendicular to the paper travel direction 1 Remove the following covers LCT front cover LCT rear cover right front lower cover and right rear lower cover 2 Loosen the 4 screws fixing the LCT unit to the copier frame 3 Move the whole LCT unit to the desired position and tighten ...

Page 563: ...nt screw This changes the 3rd scanner s height CAUTION Never perform this adjustment unless you have positively verified that the source of the skewing of image is optical and not in the paper path 1 Turn off the main switch and remove the exposure glass 2 Adjust the 3rd scanner s height by turning the adjusting screw A A Replacement Adjustment 12 February 1992 COPY QUALITY ADJUSTMENT 5 107 ...

Page 564: ...t How SP24 change the ON number of LED blocks of the edit erase lamp unit and the ON timing for the first and second image in Black in area and Color in area mode NOTE The normal setting is no white frame on the border line Color and black images may overlap by 5 mm at most because of side to side image shift between the first and second images SP24 Overlay Border Erase 0 NO No border erase 1 YES ...

Page 565: ...f the main switch 2 Open the front door and remove the fusing unit 3 While holding up the ozone filter A slightly slide it out as shown 4 Replace the ozone filter NOTE The PM interval of this ceramic ozone filter is 400K copies A A Replacement Adjustment 12 February 1992 OTHERS 5 109 ...

Page 566: ...pply board 5 Unhook the high voltage cables from the vacuum fan bracket B and disconnect the vacuum fan harness C 1 connector 6 Remove the vacuum fan bracket 2 screws 7 Remove the vacuum fan D 2 screws 8 Replace the ozone filter E NOTE The PM interval of this ceramic ozone filter is 400K copies 9 Reinstall the vacuum fan and install the new ozone filter B A E D C OTHERS 12 February 1992 5 110 ...

Page 567: ...ics Cooling Fan Filter 1 Remove the optics left cover A 1 screw 2 Replace the ozone filter B NOTE The PM interval of this paper ozone filter is 80 k copies B A Replacement Adjustment 12 February 1992 OTHERS 5 111 ...

Page 568: ...e power cord 2 Remove the rear cover 3 Disconnect the harnesses 11 connectors from the main control board A 4 Replace the main control board 6 locking supports 5 Remove the RAM board from the old main control board and install it on the new board A OTHERS 12 February 1992 5 112 ...

Page 569: ...ve the rear cover 3 Replace the RAM board A 4 Reassemble the copier and plug it in 5 Perform the memory all clear SP99 and follow the necessary procedure see Memory All Clear Procedure in Service Program Mode of Service Table section A Replacement Adjustment 12 February 1992 OTHERS 5 113 ...

Page 570: ...10 4 OPERATION PANEL REMOVAL 1 Turn off the main switch 2 Remove the front door and the upper front cover 3 Remove the operation panel A 4 screws 2 connectors A OTHERS 12 February 1992 5 114 ...

Page 571: ...keys turn on the main switch in order to access the SP mode NOTE Release the number keys after confirming that the Call Service indicator and the copy counter number 0 are blinking 10 Enter 62 grid voltage setting mode using the number keys and press the enter key 11 Enter the new grid voltage correction data labeled on the board using the number keys and press the enter key 12 Adjust the transfer...

Page 572: ...ltage cable A and a harness B 2 connectors 4 Replace the high voltage supply board D C 3 locking supports 5 Adjust the separation corona current See T S corona current auto adjustment 6 Enter the factory set data for the transfer corona current by SP162 if the high voltage supply board CTBG is the original one B A C OTHERS 12 February 1992 5 116 ...

Page 573: ... Release the number keys after confirming that the Call Service indicator and the copy counter number 0 are blinking 2 Enter 57 Auto drum current adjustment using the number keys and press the enter key 3 Press the start key The adjustment condition will be displayed with the following data in the magnification three digit indicator Data Condition 1 Measuring and adjusting the transfer corona curr...

Page 574: ... the board on another machine wait for 10 minutes before turning on the main switch Because if the over voltage protection circuit functions the dc power supply board cuts its output and it takes a maximum of 10 minutes to recover by discharging the capacitors 1 Turn off the main switch and unplug the power cord 2 Remove the rear cover 3 Remove the dc power supply board A 5 screws and 4 connectors...

Page 575: ...SECTION 6 TROUBLESHOOTING ...

Page 576: ...oubleshooting information based on reports from you and other field service engineers around the world 1 The following is a comparison table showing the area you should check first if you have image problems at periodic intervals Interval of Image Problem Possible Cause 251mm 9 89 Drum 125 5mm 4 94 Hot roller or Pressure Roller 2 If the problem is related to electrical circuit boards first disconn...

Page 577: ...e paper High voltage supply board CTBG transfer failure Poor contact of high voltage lead wires Poor contact of transfer corona wire broken transfer corona wire Leak in insulator or endblocks 3 Development roller does not rotate Broken drive gears Defective development unit drive clutch 4 Poor drum sensitivity Drum exposed to fluorescent light or direct sunlight for long period of time Drum expose...

Page 578: ... wires broken No Yes Replace the corona wires Does leakage occur in the T S endblocks or receptacles No Yes Replace the defective parts Are the development drive gears worn or broken No Yes Replace the drive gears Does the development unit drive clutch turn on properly Yes No Does the voltage at CN110 B8 stay 24 volts on the main board after the Start key is pressed 24volts 0 volts Replace the dev...

Page 579: ...t turn on even if the signal changes to LOW replace the high voltage supply board CTBG CN103 2 Transfer trigger line 1 If the signal stays HIGH after the Start key is pressed replace the main control board 2 If the transfer corona does not turn on even if the signal changes to LOW replace the high voltage supply board CTBG If there is no problem with the signal lines replace the drum if the sensit...

Page 580: ...it 2 VR correction failure High voltage supply board CTBG development bias failure Poor contact of development bias The development bias is grounded 3 OPC drum is not grounded properly 4 ADS mode Improper ADS Density setting SP34 ADS Sensor board failure High voltage supply board CTBG failure Incorrect adjustment of ADS sensor SP56 SP167 5 High toner density Improper setting of grid bias correctio...

Page 581: ...is recommended to change the exposure lamp due to deterioration If dirty background still appears does dc power supply board apply proper lamp voltage at CN401 1 and CN401 3 Yes No Replace the dc power supply board Clean the ID and V sensors and adjust them by SP54 Perform the forced VL detection SP70 till the target lamp voltage SP51 does not change If dirty background still appears is the develo...

Page 582: ...er SP83 Is the cleaning blade or cleaning brush worn No Yes Replace the cleaning blade or the cleaning brush or both Are the erase lamp quenching lamp and or toner shield glass dirty No Yes Clean the erase lamp quenching lamp the toner shield glass as required If toner scattering occurs see the toner scattering section If dirty background occurs only in ADS mode do the following If the ADS voltage...

Page 583: ...ing in the development unit Action Does the uneven image area shift when a reduction copy is made No Yes Is the optics section dirty No Yes Clean the optics Adjust the exposure adjustment plates on the 1st scanner See Uneven Exposure Adjustment Is the erase lamp quenching lamp or toner shield glass dirty No Yes Clean the erase lamp quenching lamp or toner shield glass Clean or replace the corona w...

Page 584: ... is made No Yes Check and clean the optics section including the toner shield glass Press the blade release lever several times to clean the edge of the clean ing blade If black bands still appear go to the next step Is the edge of the cleaning blade deformed No Yes Replace the cleaning blade Is the cleaning brush deformed No Yes Replace the cleaning brush If the inlet seal on the development unit...

Page 585: ...er scratched No Yes Replace the toner shield glass or green filter Is the edge of the cleaning blade scratched No Yes Replace the cleaning blade Is the hot roller scratched No Yes Check whether black lines appear on the copy by stopping the copy paper in the transport section If no black lines appear replace the hot roller Check whether the drum is scratched or toner is built up on the drum If ton...

Page 586: ...on the development unit Action Are the charge corona wires or grid plate dirty No Yes Clean the charge corona wires or grid plate Is the inlet seal damp or deformed No Yes Clean the inlet seal with a dry cloth If the problem is not corrected replace the inlet seal plate and the seal as a set Is the grid plate deformed No Yes Replace the grid plate Replace the charge corona wire Trouble shooting 12...

Page 587: ...nes still appear go to the next step Make a copy and stop the machine when the paper reaches the transport section Do white lines appear on the copy No Yes Replace the drum if it is scratched Replace the hot roller if it is scratched NOTE If the drum is scratched find out what caused the scratches on the drum and correct the problem Paper Misfeed Incorrect positioning of the pick off pawls Foreign...

Page 588: ...5 mm 4 94 intervals the cause is a scratched hot roller 3 Toner adheres to the drum surface Due to insufficient cleaning foreign matter may accumulate on the blade causing toner to stick to the drum surface when the drum stops Action Is the drum scratched No Yes Replace the drum Is the hot roller scratched No Yes Replace the hot roller If toner adheres to the drum surface clean the drum with wet c...

Page 589: ...BG defective Main control board defective Action Is there good electrical contact between the charge corona casing and the grid plate Yes No Repair the poor contact and replace any parts if needed Check the voltage at CN103 4 on the main control board 0 volt Not 0 volt Replace the main control board Replace the high voltage supply board CTBG COPY QUALITY 12 February 1992 6 14 ...

Page 590: ...canners 3 Mirrors are in the wrong position 4 The stubs of the 3rd scanner is off the rails Action Are the 1st and 2nd scanners properly positioned Yes No Reposition the scanners correctly Is each mirror positioned correctly on its scanner Yes No Reposition the mirror correctly If the spring plates are defective replace them Are the stubs of the 3rd scanner assembly off the rails No Yes Put the mi...

Page 591: ... 2 Copier is in abnormal fixed toner supply mode 3 Main Control board is defective 4 ID sensor pattern bias is too low 5 ID sensor grid bias voltage is too low Action Check the Vsp Vsg data by SP55 Clean the ID 4 V sensors and around the drum including the development unit Adjust ID V sensors by SP54 Can the ID sensor be adjusted correctly Yes No Refer to the section of SC74 Enter to SP55 Vsp Vsg ...

Page 592: ...62 correctly set Yes No Set the correct data in SP62 refering to the label on the high voltage supply board CTBG Is the grid voltage data SP161 correctly set Yes No Set the factory set data in SP161 if the high voltage supply board CTBG is the original one If not set 500 Is the copier in fixed supply mode No Yes Change data of SP30 to 0 Change the setting of ID sensor pattern bias SP33 for black a...

Page 593: ... bias is too high 5 ID sensor grid bias voltage is too high Action Check the Vsp Vsg data by SP55 Clean the ID V sensors and around the drum Adjust ID V sensors by SP54 Can the ID sensor be adjusted correctly Yes No Refer to the section of SC74 Enter to SP9 Output mode and supply toner by output number 13 for black or 14 for color until Vsp reaches around the threshold level 0 4 V for black and 1 ...

Page 594: ...set Yes No Set the correct data in SP62 refering to the label on the high voltage supply board CTBG Is the grid voltage data SP161 correctly set No Set the factory set data in SP161 if the high voltage supply board CTBG is the original one If not set 500 Is the copier in fixed supply mode No Yes Change data of SP30 to 0 Change the setting of ID sensor pattern bias SP33 for black and SP75 for color...

Page 595: ...density is too high 2 Inlet seal on the development unit is out of position 3 Developer has deteriorated Action Is toner density too high No Yes See section TONER DENSITY TOO HIGH Is the inlet seal deformed No Yes Replace the inlet seal plate Replace the developer COPY QUALITY 12 February 1992 6 20 ...

Page 596: ...ing temperature is too low 3 Thermistor is malfunctioning Action Adjust the position of the pressure springs to increase the fusing pressure No good Increase fusing temperature using SP49 No good Check the thermistor If the thermistor is malfunctioning replace it Trouble shooting 12 February 1992 COPY QUALITY 6 21 ...

Page 597: ...conditions humidified copy paper creases as it comes out of the fusing unit Action Install an optional tray heater on each paper feeding station Refer to Tray heater installation in section 3 The tray heater is available as a service part 2 17 Z FOLDED COPY OR LEAD EDGE REGISTRATION VARIES Phenomenon Copies are folded like Z shape at the leading part The variation of lead edge registration is too ...

Page 598: ...n turn the main switch off and on 3 2 CODE 12 EXPOSURE LAMP ERROR 2 COPYING Definition The exposure lamp circuit stays open longer than 20 seconds during a copy cycle The exposure lamp stays on longer than 20 seconds during a copy cycle Possible Cause Exposure lamp open Optics thermoswitch open Main power relay defective Defective dc power supply board triac or lamp voltage detection circuit defec...

Page 599: ...activated photo transistor stays on 4 seconds after the main switch is turned on Possible Cause Scanner H P sensor defective Scanner movement too heavy Scanner drive motor defective Scanner motor control board defective Scanner drive belt out of position 3 5 CODE 22 SCANNER HOME POSITION ERROR 2 Definition The scanner home position sensor remains activated photo transistor stays off 0 1 seconds af...

Page 600: ...om the I O CPU on the main control board 20 seconds after the magnification ratio is changed or 20 seconds after the scanner starts from the H P Possible Cause Main control board defective Electrical noise resulting in a communication error between the CPU s on the main control board 3 8 CODE 28 LENS HOME POSITION ERROR 1 Definition The lens H P sensor remains activated photo transistor stays off ...

Page 601: ...he 3rd scanner moves to the left in enlargement reduction mode or the main switch is turned on Possible Cause 3rd scanner H P sensor defective 3rd scanner drive motor defective 3rd scanner movement too heavy Main control board defective 3 11 CODE 2B 3RD SCANNER HOME POSITION ERROR 2 Definition The 3rd scanner H P sensor remains activated photo transistor stays off 2 4 seconds after the 3rd scanner...

Page 602: ...OR Definition The LCT lift motor stays on over 30 seconds for lifting or lowering Possible Cause LCT cover 2 switch SW15 is not activated or the switch it self is defective LCT lift motor defective LCT upper limit sensor defective LCT lower limit sensor defective LCT bottom plate movement too heavy LCT drive belt out of position 3 14 CODE 53 FUSING THERMISTOR OPEN Definition The CPU detects the fu...

Page 603: ...fusing lamp drive circuit Main control board defective NOTE To reset this SC condition enter to the SP mode then turn the main switch off and on 3 16 CODE 55 FUSING OVERHEAT Definition The fusing temperature reaches over 220 C Possible Cause Fusing thermistor short Defective dc power supply board triac of fusing lamp drive circuit Main control board defective NOTE To reset this SC condition enter ...

Page 604: ...motor does not start rotating within 2 seconds after the CPU sends the transport fan motor on signal The CPU detects this condition through the lock signal L of the fan motor Possible Cause Transport fan motor poorly connected Transport fan motor defective Main control board defective 3 19 CODE 63 EXHAUST BLOWER MOTOR ERROR Definition The exhaust blower motor does not start rotating within 2 secon...

Page 605: ...ODE 72 TRANSFER CORONA CURRENT ADJUSTMENT ERROR Definition When performing SP57 auto drum current adjustment 1 Transfer drum current is lower than the adjustment standard at the maximum output from the high voltage power supply board T 2 Transfer drum current is higher than the adjustment standard at the minimum output from the high voltage power supply board T Possible Cause Transfer corona wire ...

Page 606: ...ken T S corona unit not in position Drum unit poorly connected High voltage power supply board D defective Main control board defective 3 23 CODE 74 ID SENSOR ADJUSTMENT ERROR Definition When performing SP54 auto Vsg Vlg adjustment 1 ID sensor output Vsg is lower than the adjustment target 4 0 V at the maximum output of the ID sensor s LED 2 ID sensor output Vsg is higher than the adjustment targe...

Page 607: ...ensor board poorly connected Main control board defective 3 25 CODE 76 ADS SENSOR ADJUSTMENT ERROR Definition When performing SP56 auto ADS gain adjustment 1 ADS sensor output is lower than the adjustment target 1 5 V at the maximum gain data of the ADS sensor 2 ADS sensor output is higher than the adjustment target 1 5 V at the minimum gain data of the ADS sensor Possible Cause ADS sensor board d...

Page 608: ...TION ERROR 2 Definition The jogger H P sensor remains activated photo transistor stays off 0 16 seconds after the jogger fence started going forward Possible Cause Jogger motor defective Jogger H P sensor defective Jogger fence movement too heavy Main control board defective 3 28 CODE 91 TOTAL COUNTER ERROR Definition During a copy cycle the CPU does not receive a total counter reed switch on sign...

Page 609: ...in a communication error between the CPU s on the main control board 3 31 CODE 94 EDITOR SIGNAL ERROR Definition An interface communication error occurs between the main CPU and the editor board Possible Cause Editor board defective Main control board defective 3 32 CODE 95 AREA CODE DETECTION ERROR Definition The CPU cannot recognize the area code from the diode matrix signal from the operation p...

Page 610: ...ation Possible Cause SP54 auto Vsg Vlg adjustment not performed Toner density too high Toner density too low Development unit not set OPC drum not set OPC drum with a large heavy scratch at V sensor detection area Cleaning unit not set Exposure Lamp voltage SP48 is not adjusted properly too high or too low Trouble shooting 12 February 1992 SERVICE CALL CONDITIONS 6 35 ...

Page 611: ... stop within 250 copies NOTE A combination of causes is possible The three digit indicator will show 1 2 3 12 13 23 or 123 Possible Cause The PM counter SP88 has reached the set PM interval SP87 Main control board defective Incorrect Vsg voltage Dirty ID sensor Low toner density Incorrect setting for SP84 Editing eraser ID sensor defective Main control board defective Toner supply clutch defective...

Page 612: ...oes not light even if there is no paper on the by pass feed table Shorted Paper end indicator still lights even if paper is set on the by pass feed table Upper tray paper end non duplex machine only S5 104 B5 Open When upper tray is selected Paper end indicator still lights even if paper is added Shorted when upper tray is selected Paper end indicator does not light even though paper there is no i...

Page 613: ...ator starts blinking when copies are made from the trays or in duplex mode Shorted Paper jam A indicator starts blinking even if there is no paper Registration S11 105 A6 Open Paper jam A indicator starts blinking when copies are made Shorted Paper jam A indicator starts blinking even if there is no paper Image density ID S12 110 B27 Open SC 74 is displayed when SP 54 is performed Shorted S13 110 ...

Page 614: ... Open Original size is indicated Original size indicator does not change even if a different size original placed on the exposure glass Shorted When the platen cover is closed the original size is indicated or A3 11 x 17 3rd scanner H P S19 109 A10 Open SC2b is displayed SC 2b is displayed when the magnification ratio is changed Shorted SC2a is displayed SC 2A is displayed when the magnification r...

Page 615: ...is displayed when copies are made in duplex mode Shorted LCT paper end LCT machine only S26 105 B12 Open When LCT is selected Paper end indicator does not light even though paper is empty Shorted Tray goes down even if paper is not empty LCT lower limit LCT machine only S27 105 B17 Open Tray does not go down even if tray down switch is pressed Tray does not go down even though paper is empty in th...

Page 616: ...This may cause an abnormal image Shorted Exit cover SW10 111 B10 Open C 2 is displayed even if the exit cover is closed Shorted C 2 is not displayed even if exit cover is opened Platen cover SW11 111 B12 Open The CPU cannot detect proper original size correctly Shorted Front door safety SW12 Open C 1 is displayed even if the front door is closed Shorted C 1 is not displayed even if the front door ...

Page 617: ...d Open The copier does not turn on when the main switch is turned on F2 125V 6 3A DC Power Supply Board Open C 5 is displayed first then SC 2A is displayed depending on the 3rd scanner position when the main switch is turned on F3 125V 6 3A DC Power Supply Board Open Paper jam A indicator starts blinking when copies are made SC 61 is displayed when copier starts idling or during the copy cycle F4 ...

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