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Toshiba e-studio 202L Service Manual Download Page 192

e-STUDIO200L/202L/230/232/280/282 IMAGE PROCESSING

June 2004 © TOSHIBA TEC

7 - 8

7.4

LGC Board

7.4.1

Features

1) The image processing section on the LGC board is controlled by the CPU mounted on the LGC 

board.

2) The image processing functions of the LGC board realizes the followings:

-

Smoothing processing

-

External input system interface

-

Image area control

-

Laser related control

-

Printer high quality processing

7.4.2

Functions of image processing circuit

The image processing section mounted on the LGC board realizes the followings:
1) Smoothing processing

This function removes jaggy area, and output images after processing the smoothing the character 
outline.

2) External input system interface

This function controls the input of the input interface.

3) Image area control

This function sets the effective image area in horizontal and vertical directions to be output.

4) Laser related control

This function performs the APC (Auto Power Control).

5) Printer high quality processing

This function reproduces the image signals output from the printer controller sharper.

05/11

Summary of Contents for e-studio 202L

Page 1: ...SERVICE MANUAL MULTIFUNCTIONAL DIGITAL SYSTEMS e STUDIO200L 202L 230 232 280 282 File No SME040009D0 R04022142801 TTEC Ver04_2005 11 ...

Page 2: ...ts reserved Under the copyright laws this manual cannot be reproduced in any form without prior written permission of TOSHIBA TEC CORPORATION No patent liability is assumed however with respect to the use of the information contained herein ...

Page 3: ...rans porting the equipment Be sure to use a dedicated outlet with AC 110 V 13 2 A 115 V or 127 V 12 A 220 240 V or 240 V 8 A for its power source The equipment must be grounded for safety Select a suitable place for installation Avoid excessive heat high humidity dust vibration and direct sunlight Provide proper ventilation since the equipment emits a slight amount of ozone To insure adequate work...

Page 4: ...uld not be touched since the electric charge may remain in the capacitors etc on them even after the power is turned OFF Make sure that the equipment will not operate before touching potentially dangerous places e g rotating operating sections such as gears belts pulleys fans and laser beam exit of the laser optical unit Be careful when removing the covers since there might be the parts with very ...

Page 5: ...ncluding lithium batteries follow the relevant local regulations or rules Caution Dispose of used batteries and IC RAMs including lithium batteries according to this manual Attention Se débarrasser de batteries et IC RAMs usés y compris les batteries en lithium selon ce manuel Vorsicht Entsorgung der gebrauchten Batterien und IC RAMs inclusive der Lithium Batterie nach diesem Handbuch 05 11 ...

Page 6: ......

Page 7: ... 2 5 2 PC boards 2 41 2 6 Installation and Replacement of Options 2 51 3 COPY PROCESS 3 1 3 1 General Description of Copying Process 3 1 3 2 Details of Copying Process 3 2 3 3 Comparison with e STUDIO350 450 3 13 4 GENERAL OPERATION 4 1 4 1 Overview of Operation 4 1 4 2 Description of Operation 4 2 4 2 1 Warming up 4 2 4 2 2 Ready state ready for copying 4 2 4 2 3 Drawer feed copying Upper drawer ...

Page 8: ...iption 7 1 7 2 Configuration 7 3 7 3 SLG Board 7 4 7 3 1 Features 7 4 7 3 2 Functions of image processing circuit 7 4 7 4 LGC Board 7 8 7 4 1 Features 7 8 7 4 2 Functions of image processing circuit 7 8 7 5 Laser Driving PC Board 7 9 8 LASER OPTICAL UNIT 8 1 8 1 General Description 8 1 8 2 Structure 8 3 8 3 Laser Diode 8 6 8 4 Polygonal Motor 8 7 8 5 Internal cooling fan 2 8 8 8 6 Disassembly and ...

Page 9: ...on 12 6 12 4 2 Function of auto toner sensor 12 7 12 5 Disassembly and Replacement 12 9 13 FUSER UNIT 13 1 13 1 General Description 13 1 13 2 Operation 13 2 13 3 Functions 13 3 13 4 Heater Control Circuit 13 5 13 4 1 Configuration 13 5 13 4 2 Temperature detection section 13 6 13 5 Disassembly and Replacement 13 11 14 PAPER EXIT SECTION 14 1 14 1 General Description 14 1 14 2 Functions 14 2 14 3 C...

Page 10: ...e STUDIO200L 202L 230 232 280 282 CONTENTS June 2004 TOSHIBA TEC 4 ...

Page 11: ...inals are manually placed for single side multiple copying Values in are for e STUDIO200L 202L and values in are for e STUDIO280 280S 282 282S in case that the specification is different among e STUDIO200L 202L e STUDIO230 230L 232 232S and e STUDIO280 280S 282 282S Single sided original Double sided original MR 3016 50 127 g m2 13 lb Bond 34 lb Bond 50 105 g m2 13 lb Bond 28 lb Bond MR 3018 35 15...

Page 12: ...2 to 209 g m2 90 lb Index to 115 7 lb Index Only A4 LT size is available for the LCF The tolerance is within 2 Paper size Drawer Bypass feed PFP LCF Size specified Size not specified A4 LT B5 A5 R ST R 20 23 27 20 23 27 15 16 16 20 23 27 20 23 27 A4 R B5 R LT R 19 21 21 19 21 21 15 16 16 19 21 21 B4 LG 18 18 18 18 18 18 15 16 16 18 18 18 A3 LD 15 16 16 15 16 16 15 16 16 15 16 16 Paper size Drawer ...

Page 13: ...steps Copy mode Sec e STUDIO200L 202 e STUDIO230 230L 232 232S e STUDIO280 280S 282 282S Single sided originals Single sided copies 1 set 3 sets 5 sets 34 18 95 53 154 28 31 5 84 8 136 2 27 6 72 2 114 0 Single sided originals Double sided copies 1 set 3 sets 5 sets 37 44 96 81 155 54 34 5 85 9 137 4 31 6 73 4 116 4 Double sided originals Double sided copies 1 set 3 sets 5 sets 70 26 188 48 306 64 ...

Page 14: ...on A3 to A5 R LD to ST R 100 sheets 80 g m2 Stack height 16 mm or less Automatic duplexing unit ADU is available as standard equipment for some destinations or versions Stackless Switchback type Toner supply Automatic toner density detection supply Toner cartridge replacing method There is a recovered toner supply mechanism Density control Automatic density mode and manual density mode selectable ...

Page 15: ...O200L 202L 230 232 280 282 SPECIFICATIONS ACCESSORIES OPTIONS SUPPLIES 1 5 Dimensions of the equipment See the figure below W 637 x D 719 x H 739 mm When the tilt angle of the control panel is 45 degrees Fig 1 1 719 739 637 45 04 09 ...

Page 16: ...2 282S 2 discs are included Unpacking setup instruction 1 set Operator s manual 3 pcs except for MJD Operator s manual pocket 1 pc Power cable 1 pc Warranty sheet 1 pc for NAD Setup report 1 set for NAD and MJD Customer satisfaction card 1 pc for MJD Drum installed inside of the equipment 1 pc Toner cartridge 1 pc except for NAD MJD Developer material 1 pc except for NAD MJD Control panel stopper ...

Page 17: ...MR 3016 Drawer Module MY 1021 C Paper Feed Pedestal PFP KD 1011 C Large Capacity Feeder LCF KD 1012 A4 LT A4 C Finisher Hanging type MJ 1022 C Saddle stitch Finisher MJ 1025 C Hole Punch Unit MJ 6005 N E F S 1 Staple Cartridge STAPLE 1600 for MJ 1022 STAPLE 2000 for MJ 1025 Bridge Kit KN 3520 C Job Separator MJ 5004 C Offset Tray MJ 5005 C Key copy Counter Key copy counter socket MU 8 MU 10 Work T...

Page 18: ... STUDIO202L They do not operate with e STUDIO232 232S 282 282S Platen Cover KA 3511PC C Reversing Automatic Document Feeder RADF MR 3020 Automatic Duplexing Unit ADU MD 0102 Drawer module MY 1021 C Slot cover KE 2330 Paper Feed Pedestal PFP KD 1011 C Large Capacity Feeder LCF KD 1012LT A4 A4 C Finisher Hanging type MJ 1022 C Finisher Console saddle stitcher type MJ 1025 Hole punch unit for MJ 1025...

Page 19: ... 4 1 e STUDIO200L 230 230L 280 280S 1 T Taiwan D Asia C China E Europe NONE North America 1 4 2 e STUDIO202L 232 232S 282 282S 1 T Taiwan D Asia C China E Europe NONE North America Drum OD 1600 Toner cartridge PS ZT2320 T D C E 1 Developer D 2320 C Drum OD 1600 Toner cartridge PS ZT2340 T D C E 1 Developer D 2340 C 05 11 ...

Page 20: ...Scrambler Board GP 1030 Parallel interface kit GF 1140 PCI Slot GO 1040 FAX Board GD 1150 NA AU EU TW C AS 2nd Line for FAX Board GD 1160 NA EU TW C Wireless LAN Adapter GN 1010 Damp Heater MF 2320 U E NIC board GF 1150 Printer Kit GM 1020 GM 1030 Data overwrite kit GP 1050 Desk MH 1700 Drawer Module MY 1021 Slot cover KE 2330 Large Capacity Feeder LCF KD 1012 A4 LT Paper Feed Pedestal PFP KD 1011...

Page 21: ... for MJ 1025 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005N MJ 6005E MJ 6005E MJ 6005E F S MJ 6005E Bridge kit KN 3520 KN 3520 KN 3520 KN 3520 KN 3520 Job separator MJ 5004 MJ 5004 MJ 5004 MJ 5004 MJ 5004 Offset tray MJ 5005 MJ 5005 MJ 5005 MJ 5005 MJ 5005 Key copy counter MU 8 MU 8 MU 8 MU 8 MU 8 Key copy counter socket MU 10 MU 10 MU 10 MU 10 MU 10 Work tray...

Page 22: ...PLE 2000 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005E MJ 6005E MJ 6005E MJ 6005E MJ 6005E Bridge kit KN 3520 KN 3520 KN 3520 C KN 3520 C KN 3520 Job separator MJ 5004 MJ 5004 MJ 5004 C MJ 5004 C MJ 5004 Offset tray MJ 5005 MJ 5005 MJ 5005 C MJ 5005 C MJ 5005 Key copy counter MU 8 MU 8 MU 8 MU 8 MU 8 Key copy counter socket MU 10 MU 10 MU 10 MU 10 MU 10 Work tray KK 3511 KK 3511 KK 3511 KK 3511...

Page 23: ...025 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005N MJ 6005E MJ 6005E MJ 6005E F S MJ 6005E Bridge kit KN 3520 KN 3520E KN 3520 KN 3520 KN 3520 Job separator MJ 5004 MJ 5004 MJ 5004 MJ 5004 MJ 5004 Offset tray MJ 5005 MJ 5005 MJ 5005 MJ 5005 MJ 5005 Key copy counter MU 8 MU 8 MU 8 MU 8 MU 8 Key copy counter socket MU 10 MU 10 MU 10 MU 10 MU 10 Work tray KK 3511...

Page 24: ... MJ 1025 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005E MJ 6005E MJ 6005E MJ 6005E Bridge kit KN 3520 KN 3520 KN 3520 C KN 3520 Job separator MJ 5004 MJ 5004 MJ 5004 C MJ 5004 Offset tray MJ 5005 MJ 5005 MJ 5005 C MJ 5005 Key copy counter MU 8 MU 8 MU 8 MU 8 Key copy counter socket MU 10 MU 10 MU 10 MU 10 Work tray KK 3511 KK 3511 KK 3511 KK 3511 Damp heater Standard Stan...

Page 25: ...APLE 1600 STAPLE 1600 Saddle stitch finisher MJ 1025 MJ 1025 Staple cartridge for MJ 1025 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005N MJ 6005E Bridge kit KN 3520 KN 3520 Job separator MJ 5004 MJ 5004 Offset tray MJ 5005 MJ 5005 Key copy counter MU 8 MU 8 Key copy counter socket MU 10 MU 10 Work tray KK 3511 KK 3511 Damp heater MF 2320 Standard Fax board GD 1150NA GD 1150AS 2nd line for Fax bo...

Page 26: ...tor MJ 5004 Offset Tray MJ 5005 Scrambler Board GP 1040 PCI Slot GO 1060 FAX Board GD 11150 NA EU AU AS C TW 2nd Line for FAX Board GD 1160 NA EU N TW C Data overwrite kit GP 1060 Damp Heater MF 2320 U E Printer Kit GM 1070 GM 1080U Desk MH 1700 Drawer Module MY 1021 Slot cover KE 2330 Large Capacity Feeder LCF KD 1012 A4 LT Paper Feed Pedestal PFP KD 1011 Printer Scanner Kit GM 2070 GM 2080U Auto...

Page 27: ...1025 MJ 1025 Staple cartridge for MJ 1025 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005N MJ 6005E MJ 6005E MJ 6005E MJ 6005E F S Bridge kit KN 3520 KN 3520 KN 3520 KN 3520 KN 3520 Job separator MJ 5004 MJ 5004 MJ 5004 MJ 5004 MJ 5004 Offset tray MJ 5005 MJ 5005 MJ 5005 MJ 5005 MJ 5005 Work tray KK 3511 KK 3511 KK 3511 KK 3511 KK 3511 Damp heater MF 2320U Stand...

Page 28: ...1025 MJ 1025 Staple cartridge for MJ 1025 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005E MJ 6005E MJ 6005E MJ 6005E Bridge kit KN 3520 KN 3520 KN 3520 C KN 3520 C Job separator MJ 5004 MJ 5004 MJ 5004 C MJ 5004 C Offset tray MJ 5005 MJ 5005 MJ 5005 C MJ 5005 C Work tray KK 3511 KK 3511 KK 3511 C KK 3511 C Damp heater Standard Standard Standard Standard Fax board GD 1150AS...

Page 29: ...APLE 1600 Saddle stitch finisher MJ 1025 MJ 1025 Staple cartridge for MJ 1025 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005E MJ 6005E Bridge kit KN 3520 KN 3520 Job separator MJ 5004 MJ 5004 Offset tray MJ 5005 MJ 5005 Work tray KK 3511 KK 3511 Damp heater Standard Standard Fax board GD 1150TW GD 1150AS 2nd line for Fax board GD 1160TW GD 1160EU N Wireless LAN module GN 1041 GN 1041 Bluetooth mo...

Page 30: ...025 MJ 1025 Staple cartridge for MJ 1025 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005N MJ 6005E MJ 6005E MJ 6005E MJ 6005E F S Bridge kit KN 3520 KN 3520 KN 3520 KN 3520 KN 3520 Job separator MJ 5004 MJ 5004 MJ 5004 MJ 5004 MJ 5004 Offset tray MJ 5005 MJ 5005 MJ 5005 MJ 5005 MJ 5005 Work tray KK 3511 KK 3511 KK 3511 KK 3511 KK 3511 Damp heater MF 2320U Standa...

Page 31: ... 1025 MJ 1025 Staple cartridge for MJ 1025 STAPLE 2000 STAPLE 2000 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005E MJ 6005E MJ 6005E MJ 6005E Bridge kit KN 3520 KN 3520 KN 3520 C KN 3520 C Job separator MJ 5004 MJ 5004 MJ 5004 C MJ 5004 C Offset tray MJ 5005 MJ 5005 MJ 5005 C MJ 5005 C Work tray KK 3511 KK 3511 KK 3511 C KK 3511 C Damp heater Standard Standard Standard Standard Fax board GD 1150A...

Page 32: ...TAPLE 1600 Saddle stitch finisher MJ 1025 MJ 1025 Staple cartridge for MJ 1025 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005E MJ 6005E Bridge kit KN 3520 KN 3520 Job separator MJ 5004 MJ 5004 Offset tray MJ 5005 MJ 5005 Work tray KK 3511 KK 3511 Damp heater Standard Standard Fax board GD 1150TW GD 1150AS 2nd line for Fax board GD 1160TW GD 1160EU N Wireless LAN module GN 1041 GN 1041 Bluetooth m...

Page 33: ... 1022 STAPLE 1600 STAPLE 1600 Saddle stitch finisher MJ 1025 MJ 1025 Staple cartridge for MJ 1025 STAPLE 2000 STAPLE 2000 Hole punch unit MJ 6005N MJ 6005E Bridge kit KN 3520 KN 3520 Job separator MJ 5004 MJ 5004 Offset tray MJ 5005 MJ 5005 Work tray KK 3511 KK 3511 Damp heater MF 2320U Standard Fax board GD 1150NA GD 1150AS 2nd line for Fax board GD 1160NA GD 1160EU N Wireless LAN module GN 1041 ...

Page 34: ...e STUDIO200L 202L 230 232 280 282 SPECIFICATIONS ACCESSORIES OPTIONS SUPPLIES June 2004 TOSHIBA TEC 1 24 ...

Page 35: ... OF THE MACHINE 2 1 Sectional View Fig 2 1 Front side view A1 A2 A3 A4 A5 A6 A7 A8 A9 F1 H2 B3 B1 B8 B4 C1 C2 E15 C3 D3 D2 D6 D4 D1 D5 E9 E13 E19 E18 C4 E2 E1 E4 G3 E6 E7 E8 E11 C5 H5 E5 G1 G2 B5 6 G4 B2 G8 G5 H4 B9 H1 H8 G6 E14 B3 B1 B16 B17 B4 B18 B5 6 B2 B14 B15 G7 E12 E3 F2 E10 B24 B13 G9 H9 ...

Page 36: ... sensor A6 Reflector B5 Drawer empty sensor A7 Lens B6 Drawer paper stock sensor A8 Exposure lamp B7 Drawer detection switch A9 Automatic original detection sensor B8 Drawer A10 Platen sensor B9 Drawer tray A11 Scan motor B10 Upper drawer feed clutch A12 Carriage home position sensor B11 Lower drawer feed clutch A13 Scanner damp heater Left B12 Tray up motor A14 Scanner damp heater Right B13 1st t...

Page 37: ...Laser unit C4 ADU entrance sensor F2 Polygonal motor C5 ADU exit sensor G1 Heat roller C6 ADU motor G2 Pressure roller C7 ADU clutch G3 Cleaning roller C8 ADU opening closing switch G4 Separation finger for heat roller D1 Bypass pickup roller G5 Center side edge thermistor D2 Bypass feed roller G6 Fuser center front thermostat D3 Bypass separation roller G7 Exit roller D4 Bypass tray G8 Exit senso...

Page 38: ...4 TOSHIBA TEC 2 4 2 2 Electric Parts Layout 1 Unit construction Fig 2 3 PC board unit Drive unit Scanner unit Control panel unit Fuser Paper exit unit Automatic duplexing unit Bypass unit Transport unit Transfer unit Paper feeder unit Laser unit Main unit Front side ...

Page 39: ...SHIBA TEC e STUDIO200L 202L 230 232 280 282 OUTLINE OF THE MACHINE 2 5 2 Scanner unit a Motor sensor lamp A4 series Fig 2 4 LT series Fig 2 5 M1 S7 S4 S5 EXP S6 S3 S2 S1 Front side M1 S7 S4 S5 EXP S6 S3 S2 Front side ...

Page 40: ...32 280 282 OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 6 b PC board heater thermostat other part Fig 2 6 ASD AUD CND SAD ASU TWD IRD ARD KRD models Standard NAD MJD models Option DH2 CCD SLG THMO1 DH1 INV Front side 05 11 ...

Page 41: ...OSHIBA TEC e STUDIO200L 202L 230 232 280 282 OUTLINE OF THE MACHINE 2 7 3 Control panel unit Fig 2 7 4 Main unit a Motor sensor switch PC board Fig 2 8 Front side KEY LCD DSP Front side S8 SW1 SW5 SW2 LRL M4 SW4 SW9 ...

Page 42: ... 282 OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 8 b PC board sensor lamp heater thermistor thermostat Fig 2 9 ASD AUD CND SAD ASU TWD IRD ARD KRD models Standard NAD MJD models Option Front side ERS PS S9 THMS1 THMO4 DH3 05 11 ...

Page 43: ...0 6 Paper feeder unit Fig 2 11 e STUDIO230 280 232 282 NAD AUD MJD IRD CND TWD KRD e STUDIO280S 282S 232S CND models Standard e STUDIO200L 202L NAD ASD ARD e STUDIO230 280 232 282 ASD ASU SAD ARD e STUDIO230L MJD models Option Front side M6 SNS LDR Front side CLT5 S13 SW7 CLT6 S11 S12 S15 S14 S10 SW6 05 11 ...

Page 44: ...e STUDIO200L 202L 230 232 280 282 OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 10 7 Transport unit Fig 2 12 SW3 S17 S16 Front side ...

Page 45: ...2 June 2004 TOSHIBA TEC e STUDIO200L 202L 230 232 280 282 OUTLINE OF THE MACHINE 2 11 8 Bypass unit Fig 2 13 Front side S21 S20 SOL CLT7 S19 04 09 ...

Page 46: ...it Fig 2 14 10 Automatic duplexing unit Fig 2 15 e STUDIO230 280 232 282 NAD AUD MJD IRD CND models Standard e STUDIO200L 202L NAD ASD ARD e STUDIO230 280 232 282 ASD ASU SAD TWD KRD e STUDIO230L MJD e STUDIO280S 232S 282S CND models Option Front side S18 M8 Front side S22 S23 SW8 M9 CLT8 ADU 05 11 ...

Page 47: ...2 June 2004 TOSHIBA TEC e STUDIO200L 202L 230 232 280 282 OUTLINE OF THE MACHINE 2 13 11 Fuser Paper exit unit Fig 2 16 Front side LAMP2 LAMP1 S24 THMS3 THMS4 THMS2 THMO3 THMO2 M10 ...

Page 48: ...e STUDIO200L 202L 230 232 280 282 OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 14 12 Drive unit Fig 2 17 M2 M7 M5 M3 CLT1 CLT2 CLT3 CLT4 Front side 04 09 ...

Page 49: ... STUDIO200L 230 230L 280 280S Fig 2 18 1 ASD AUD CND SAD ASU TWD IRD models Standard NAD MJD models Option 2 e STUDIO230 280 NAD AUD MJD IRD CND TWD models Standard e STUDIO200L NAD ASD e STUDIO230 280 ASD ASU SAD e STUDIO230L MJD e STUDIO280S CND models Option Front side HDD HVT LGC SYS NIC 2 FUS 1 05 11 ...

Page 50: ...L 230 232 280 282 OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 16 e STUDIO202L 232 232S 282 282S Fig 2 19 ASD AUD CND SAD ASU TWD ARD KRD models Standard NAD MJD models Option Front side HDD HVT LGC SYS FUS M11 05 11 ...

Page 51: ...Fig 2 8 P10 I7 M5 REAR FAN MOT Internal cooling fan 2 Cooling down the laser unit and switch ing regulator P 2 14 Fig 2 17 P6 I7 M6 M DC POL Polygonal motor Driving the polygonal mirror P 2 9 Fig 2 10 P10 I19 M7 TRY MOT Tray up motor Driving the lifting movement of trays in upper lower drawer P 2 14 Fig 2 17 P16 I15 M8 EXIT FAN MOT Exhaust fan Exhausting ozone P 2 12 Fig 2 14 P12 I34 M9 ADU MOT AD...

Page 52: ... drawer paper stock sensor Paper amount detection in the upper drawer P 2 9 Fig 2 11 P15 I104 S11 CST U TRY SNR Upper drawer tray up sensor Position detection of the lifting tray of the upper drawer P 2 9 Fig 2 11 P15 I104 S12 EMP U SNR Upper drawer empty sensor Paper presence absence detection in the upper drawer P 2 9 Fig 2 11 P15 I104 S13 NEMP L SNR Lower drawer paper stock sensor Paper amount ...

Page 53: ... presence absence of paper on the bypass tray P 2 11 Fig 2 13 P20 I104 S20 FEED SNR 2 2nd transport sensor Detecting the transport paper and jam ming fed from the lower drawer or PFP LCF P 2 11 Fig 2 13 P19 I13 S21 SFB SIZE SNR Paper size detection sensor Detecting the width of paper on the bypass tray P 2 11 Fig 2 13 P18 I12 S22 ADU TRU SNR ADU entrance sensor Detecting the transporting paper at ...

Page 54: ...e presence absence detection P 2 7 Fig 2 8 P6 I52 SW5 FRNT COV SW Front cover opening closing switch Detecting opening closing of the front cover P 2 7 Fig 2 8 P5 I102 SW6 CST U SW Upper drawer detection switch Detecting presence absence of the upper drawer P 2 9 Fig 2 11 P6 I113 SW7 CST L SW Lower drawer detection switch Detecting presence absence of the lower drawer P 2 9 Fig 2 11 P6 I113 SW8 AD...

Page 55: ...upper drawer pickup roller P 2 9 Fig 2 11 P15 I11 CLT6 CST L FEED CLT Lower drawer feed clutch Driving the lower drawer pickup roller e STUDIO230 280 232 282 NAD AUD MJD IRD CND TWD KRD e STUDIO280S 232S 282S CND models Standard e STUDIO200L 202L NAD ASD ARD e STUDIO230 280 232 282 ASD ASU SAD ARD e STUDIO230L MJD models Option P 2 9 Fig 2 11 P15 I11 CLT7 SFB FEED CLT Bypass feed clutch Driving th...

Page 56: ...EY Key control PC board KEY board Detecting the button entry and control ling LED on the control panel P 2 7 Fig 2 7 P3 I25 LDR PWA F LDR Laser driving PC board LDR board Driving the laser diode P 2 9 Fig 2 10 P10 I19 LGC PWA F LGC Logic PC board LGC board Controlling the print engine section P 2 15 Fig 2 18 P9 I10 LRL PWA F LRL Laser control signal relay PC board LRL board Relaying the control si...

Page 57: ...RD KRD models Standard NAD MJD models Option P 2 6 Fig 2 6 P11 I38 DH3 DRM DH Drum damp heater Preventing condensation of the drum ASD AUD CND SAD ASU TWD IRD ARD KRD models Standard NAD MJD models Option P 2 8 Fig 2 9 P5 I19 ERS LP ERS Discharge LED Removing the residual charge from the drum surface P 2 8 Fig 2 9 P27 I13 EXP LP EXPO Exposure lamp Exposing the original to the light P 2 5 Fig 2 4 P...

Page 58: ...Standard NAD MJD models Option P 2 8 Fig 2 9 P5 I19 THMS1 THMS DRM Drum thermistor Detecting the temperature at the drum surface P 2 8 Fig 2 9 P28 I49 THMS2 THMS C HTR Center thermistor Detecting the surface temperature at fuser roller center for controlling the temperature of the center heater lamp P 2 13 Fig 2 16 P30 I40 THMS3 THMS S HTR Side thermistor Detecting the surface temperature at the r...

Page 59: ...ying and entering each informa tion P 2 7 Fig 2 7 P3 I19 HDD HDD Hard disk Storing the program data and image data P 2 15 Fig 2 18 P8 I39 P8 I101 INV INV EXP Inverter board Controlling the exposure lamp P 2 6 Fig 2 6 P23 I7 PS PS ACC Switching regulator Generating DC voltage and supplying it to each section of the equipment P 2 8 Fig 2 9 P10 I16 05 11 ...

Page 60: ...wnload jig IPC PFP LCF RADF ADU Motors HVT Clutches Sensors Solenoids Switches Bypass unit Key copy counter Copy key card Finisher Bridge unit Job separator Offset tray Bus transceiver I O Finisher Control panel PCI slot USB connector host 1 USB connector device USB connector host 2 Parallel port IEEE1284 C HDD NCU LINE 1 NCU LINE 2 NIC Dongle Dongle Modem FAX CCD Flash ROM 512KB SRAM 128KB Amp Am...

Page 61: ... Offset tray Bus transceiver I O Finisher CCD Flash ROM 512KB SRAM 128KB Amp Amp A D A D Option Odd Even ASIC ASIC Engine CPU 24MHz ASIC ASIC Motors Scanner CPU 22MHz Laser diode ADU is available as an option for some models or destinations FRAM 256KB Control panel ASIC Page memory SDRAM 16MB x 2 PSTN External TEL PSTN SRAM 512KB Battery RTC EEPROM 1KB Flash ROM 8MB x 2 Download jig PCI slot Scram...

Page 62: ...e Scan ner CPU The analog signal output from the CCD board is then converted to digital signal by the A D converter Image processing is performed by ASIC INV board This is the board on which the lighting control circuit of the exposure lamp is mounted The exposure lamp lights by the command from the Scanner CPU DSP board This is the board to mainly control the control panel The panel processing CP...

Page 63: ...Engine CPU on the LGC board and then issues an operation command to the scanner and printer engine section LGC board This is the board to mainly control the printing function printer engine It consists of the Engine CPU ASIC memory Flash ROM SRAM NVRAM driver for motor drive etc The Engine CPU controls each ASIC to drive I O for the electrical parts of each section in the system It leads to the op...

Page 64: ... 2004 TOSHIBA TEC 2 30 2 5 Installation and Replacement of Covers and PC Boards 2 5 1 Covers A Front cover 1 Open the front cover Fig 2 23 2 Turn 2 hinge pins to point at the front side and pull them out upward 3 Take off the front cover Fig 2 24 Pin Front cover ...

Page 65: ...ACHINE 2 31 B Front left cover C Rear cover 1 Open the front cover 2 Remove 1 screw Pull out the front left cover to the front side and then take it off by sliding it to the right side Fig 2 25 1 Remove 7 screws and take off the rear cover Fig 2 26 Front left cover Rear cover ...

Page 66: ...IBA TEC 2 32 D Left upper cover E Front upper cover 1 Remove 2 screws and take off the left upper cover Fig 2 27 1 Take off the left upper cover P 2 32 D Left upper cover 2 Remove 2 screws and take off the front upper cover Fig 2 28 Left upper cover Front upper cover 04 09 ...

Page 67: ...33 F Right upper cover 1 G Right upper cover 2 1 Remove 2 screws and take off the right upper cover 1 Fig 2 29 1 Take off the right upper cover 1 P 2 33 F Right upper cover 1 2 Remove 2 screws and take off the right upper cover 2 Fig 2 30 Right upper cover 1 Right upper cover 2 04 09 ...

Page 68: ...ver P 2 31 C Rear cover 2 Remove 1 screw and take off the right upper cover 3 Fig 2 31 1 Take off the RADF or Platen Cover 2 Take off the left upper cover P 2 32 D Left upper cover 3 Take off the right upper cover 1 P 2 33 F Right upper cover 1 4 Remove 2 screws and take off the upper rear cover Fig 2 32 Right upper cover 3 Upper rear cover 05 11 ...

Page 69: ...35 J Left rear cover K Inner tray 1 Take off the left upper cover P 2 32 D Left upper cover 2 Remove 4 screws and take off the left rear cover Fig 2 33 1 Open the front cover 2 Open the exit cover 3 Remove 2 screws and take off the inner tray Fig 2 34 Left rear cover Inner tray 04 09 ...

Page 70: ...2 36 L Left cover M Tray back cover 1 Remove 3 screws and take off the left cover Fig 2 35 1 Take off the left rear cover P 2 35 J Left rear cover 2 Take off the inner tray P 2 35 K Inner tray 3 Open the exit cover 4 Take off the tray back cover Fig 2 36 Left cover Tray back cover ...

Page 71: ...O200L 230 230L 280 280S 1 Take off the right upper cover 3 P 2 34 H Right upper cover 3 2 Open the transfer cover 3 Remove 2 screws and take off the right rear cover Fig 2 37 1 Take off the right rear cover P 2 37 N Right rear cover 2 Remove 1 screw and take off the connecting port cover Fig 2 38 Right rear cover Connecting port cover 05 11 ...

Page 72: ...ht upper cover 3 P 2 34 H Right upper cover 3 2 Remove the connecting port cover while releasing 2 hooks Fig 2 39 1 Pull out the upper and lower drawers 2 Remove 2 screws and take off the right front hinge cover Note When the ADU is installed refer to chapter 15 5 P 15 10 A Automatic Duplexing Unit ADU Fig 2 40 Connecting port cover Right front hinge cover 05 11 ...

Page 73: ... CND TWD KRD ARD e STUDIO282 ASD ASU SAD CND TWD KRD ARD 1 Remove 2 screws and take off the right rear hinge cover Note When the ADU is installed refer to chapter 15 5 P 15 10 A Automatic Duplexing Unit ADU Fig 2 41 1 Remove 1 screw take off the harness cover 2 Take off the right front hinge cover P 2 38 P Right front hinge cover 3 Take off the right rear hinge cover P 2 39 Q Right rear hinge cove...

Page 74: ...e STUDIO200L 202L 230 232 280 282 OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 40 4 Remove 2 screws take off the bypass upper cover Fig 2 43 Bypass upper cover ...

Page 75: ...laced refer to each CAUTIONS of TROUBLESHOOTHING in the SERVICE HANDBOOK A Hard disk HDD A 1 e STUDIO200L 230 230L 280 280S 1 Take off the rear cover P 2 31 C Rear cover 2 Loosen 4 screws and take off the bridge bracket Fig 2 44 3 Loosen 6 screws and take off the SYS board lower cover Fig 2 45 Bridge bracket SYS board lower cover 05 11 ...

Page 76: ...screws disconnect 2 connectors and take off the SYS board upper cover Fig 2 46 5 Remove 4 screws and take off the HDD from the SYS board upper cover Fig 2 47 1 Take off the rear cover P 2 31 C Rear cover 2 Loosen 4 screws and take off the bridge bracket Fig 2 48 SYS board upper cover HDD SYS board upper cover Bridge bracket 05 11 ...

Page 77: ...2 280 282 OUTLINE OF THE MACHINE 2 43 3 Disconnect 1 connector Fig 2 49 4 Loosen 11 screws and take off the SYS board cover Fig 2 50 5 Remove 4 screws Disconnect 2 connectors while removing the HDD with the bracket Fig 2 51 SYS board cover HDD 05 11 ...

Page 78: ...ke off the ground wire Fig 2 52 7 Disconnect 1 connector Remove 2 screws and take off the HDD cooling fan from the SYS board cover Fig 2 53 1 Take off the SYS board lower cover and SYS board upper cover P 2 41 A Hard disk HDD 2 Release 2 locking supports remove 2 screws and then take off the NIC board Note NIC board is available as an option GF 1150 for some destinations or versions Fig 2 54 HDD G...

Page 79: ...ke off the SYS board upper cover and SYS board lower cover P 2 41 A Hard disk HDD 2 Take off the NIC board P 2 44 B NIC board GF 1150 3 Disconnect 4 connectors remove 8 screws and then take off the SYS board Fig 2 55 1 Take off the SYS board cover P 2 41 A Hard disk HDD 2 Disconnect 4 connectors remove 8 screws and then take off the SYS board Fig 2 56 SYS board Screw Screw Screw SYS board 05 11 ...

Page 80: ...DIO200L 230 230L 280 280S 1 Take off the SYS board upper cover and SYS board lower cover P 2 41 A Hard disk HDD 2 Disconnect 4 connectors and release the harness from 3 harness clamps Fig 2 57 3 Remove 5 screws and take off the SYS board case Fig 2 58 Harness clamp Harness clamp SYS board case Screw Screw 05 11 ...

Page 81: ...HDD 2 Disconnect 4 connectors and release the harness from 1 harness clamp Fig 2 59 3 Remove 5 screws and take off the SYS board case Fig 2 60 1 Take off the rear cover P 2 31 C Rear cover 2 Loosen 4 screws and take off the bridge bracket Note The LGC boards of e STUDIO200L 230 230L 280 280S and e STUDIO202L 232 232S 282 282S are different in appearance Fig 2 61 SYS board case Bridge bracket 05 11...

Page 82: ...oosen 6 screws remove 1 screw and then take off the LGC board cover Fig 2 62 4 Disconnect 12 connectors and release the harness form 5 harness clamps Fig 2 63 5 Remove 4 screws release 1 locking support and then take off the LGC board Fig 2 64 LGC board cover Harness clamp LGC board 05 11 ...

Page 83: ...ge transformer cover Fig 2 65 4 Disconnect 7 connectors Remove 2 screws release 2 locking supports and then take off the high voltage transformer Fig 2 66 1 Take off the left rear cover P 2 35 J Left rear cover 2 Take off the left cover P 2 36 L Left cover 3 Remove 2 screws and pull out the switching power supply 4 Disconnect 7 connectors release the har ness from 4 harness clamps Fig 2 67 Hight v...

Page 84: ...e STUDIO200L 202L 230 232 280 282 OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 50 5 Take off the switching power supply Fig 2 68 Switching power supply ...

Page 85: ...2 6 Installation and Replacement of Options A MR 3016 Reversing Automatic Document Feeder RADF 1 Turn the power OFF and unplug the power cable 2 Take off the connector cover Fig 2 69 3 Disconnect the connector Fig 2 70 4 Remove 2 screws on the rear side Fig 2 71 Connector cover Connector ...

Page 86: ...202L 230 232 280 282 OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 52 5 Open the RADF Fig 2 72 6 Remove 2 screws on the front side Fig 2 73 7 Slide the RADF backward and take it off by lifting it up Fig 2 74 05 11 ...

Page 87: ...lug the power cable 2 Remove 1 screw and take off the connector cover Fig 2 75 3 Remove 1 screw and the ground wire and then disconnect 2 connectors 3 connectors if the optional damp heater is installed Fig 2 76 4 Take off the lower drawer of the equipment and PFP upper drawer Fig 2 77 Connector cover Connector of optional damp heater Drawer 04 07 ...

Page 88: ...HIBA TEC 2 54 5 Remove 2 screws and take off 2 fixing brack ets on the rear side Fig 2 78 6 Remove 4 screws and take off 2 fixing brack ets on the front side Fig 2 79 7 Lift up the equipment and take off the PFP Fig 2 80 Fixing bracket Fixing bracket Fixing bracket 04 07 ...

Page 89: ...2 Large Capacity Feeder LCF 1 Turn the power OFF and unplug the power cable 2 Remove 1 screw and take off the connector cover Fig 2 81 3 Remove 1 screw and the ground wire and then disconnect 2 connectors Fig 2 82 4 Take off the lower drawer of the equipment Fig 2 83 Connector cover Drawer 04 07 ...

Page 90: ...004 TOSHIBA TEC 2 56 5 Pull out the LCF drawer Fig 2 84 6 Remove 2 screws and take off 2 fixing brack ets on the rear side Fig 2 85 7 Remove 4 screws and take off 2 fixing brack ets on the front side Fig 2 86 LCF drawer Fixing bracket Fixing bracket Fixing bracket ...

Page 91: ...LCF is not installed 8 Lift up the equipment and take off the LCF Fig 2 87 1 Turn the power OFF and unplug the power cable 2 Take off the connector cover and disconnect the connector Fig 2 88 3 Remove 2 screws and take off the safety bracket on the rear side and the cover Fig 2 89 Connector Connector cover Cover Safety bracket ...

Page 92: ...OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 58 4 Remove 2 screws and take off the safety bracket on the front side and the cover Fig 2 90 5 Remove 2 screws Fig 2 91 6 Lift up the finisher and take it off Fig 2 92 Cover Safety bracket ...

Page 93: ... installed 1 Turn the power OFF and unplug the power cable 2 Take off the connector cover and disconnect the connector Fig 2 93 3 Remove 2 screws and take off the cover on the rear side Fig 2 94 4 Remove 2 screws and take off the cover on the front side Fig 2 95 Connector Connector cover Cover Cover 04 09 ...

Page 94: ... TOSHIBA TEC 2 60 E MJ 1025 Saddle stitch finisher 5 Remove 2 screws Fig 2 96 6 Lift up the finisher and take it off Fig 2 97 1 Turn the power OFF and unplug the power cable 2 Take off the connector cover and disconnect the connector Fig 2 98 Connector Connector cover ...

Page 95: ...inisher while pushing the lever Fig 2 99 4 Remove 1 screw and take off the finisher from the rail Note Be careful not to fell the finisher when mov ing the finisher unit only Fig 2 100 1 Turn the power OFF and unplug the power cable 2 Pull out the finisher from the equipment 3 Remove the stopper Fig 2 101 Lever Rail Stopper ...

Page 96: ...2 OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 62 4 Remove 2 screws and take off the cover Fig 2 102 5 Disconnect 1 connector Fig 2 103 6 Open the bridge unit Remove 1 screw and take off the cover Fig 2 104 Cover Stepped screw Cover ...

Page 97: ...282 OUTLINE OF THE MACHINE 2 63 7 Close the bridge unit and remove 1 screw Fig 2 105 8 When MJ 1022 is installed Remove 4 screws and take off the bracket Fig 2 106 When MJ 1025 is installed Remove 5 screws and take off the bracket Fig 2 107 Bracket Bracket ...

Page 98: ...004 TOSHIBA TEC 2 64 G MJ 5004 Job separator 9 Take off the guide Fig 2 108 10 Lift up the bridge unit and release the hook Take off the bridge unit toward the front Fig 2 109 1 Turn the power OFF and unplug the power cable 2 Take off the tray Fig 2 110 Guide Tray ...

Page 99: ...BA TEC e STUDIO200L 202L 230 232 280 282 OUTLINE OF THE MACHINE 2 65 3 Remove 2 screws and take off the cover Fig 2 111 4 Disconnect 2 connectors Fig 2 112 5 Loosen 2 screws and take off the cover Fig 2 113 Cover Cover ...

Page 100: ...66 H MJ 5005 Offset tray 6 Remove 1 screw Lift up the job separator and release the hook Take off the job sepa rator toward the front Fig 2 114 1 Turn the power OFF and unplug the power cable 2 Take off the tray Fig 2 115 3 Remove 2 screws and take off the cover Fig 2 116 Tray Cover ...

Page 101: ...00L 202L 230 232 280 282 OUTLINE OF THE MACHINE 2 67 4 Disconnect 2 connectors Fig 2 117 5 Open the front cover 6 Remove the inner tray attachment cover Fig 2 118 7 Remove 1 screw and take off the cover Fig 2 119 Attachment cover Cover ...

Page 102: ...5 10 A Automatic Duplexing Unit ADU The ADU is available as standard equipment for some destinations or versions J MR 3020 Reversing Automatic Document Feeder RADF 8 Lift up the offset tray and release the hook Take off the offset tray toward the front Fig 2 120 1 Turn the power OFF and unplug the power cable 2 Take off the connector cover Fig 2 121 Connector cover 05 11 ...

Page 103: ... TEC e STUDIO200L 202L 230 232 280 282 OUTLINE OF THE MACHINE 2 69 3 Disconnect the connector Fig 2 122 4 Remove 1 screw and 1 washer on the rear side Fig 2 123 5 Remove 1 screw on the rear side Fig 2 124 Connector 05 11 ...

Page 104: ...02L 230 232 280 282 OUTLINE OF THE MACHINE June 2004 TOSHIBA TEC 2 70 6 Open the RADF Fig 2 125 7 Remove 2 screws on the front side Fig 2 126 8 Slide the RADF backward and take it off by lifting it up Fig 2 127 05 11 ...

Page 105: ... photo conductive drum 10 Cleaning Scrapes off the residual toner from the drum 5 Development Negatively charged toner adheres to the photoconductive drum and forms visible image 11 Discharging Eliminates the residual nega tive charge from the surface of the photo conductive drum 6 Transfer bias Improves transfer efficiency Original exposure Xenon lamp 16W Data reading scanning CCD 600 dpi 7400 pi...

Page 106: ...rks as a conductor Weak light Resistance is increased works as an insulator Fig 3 2 Formation of electrostatic latent image In the processes of charging data reading data writing discharging described later negative poten tial of the areas on the drum corresponding to black areas of the original are eliminated while the areas on the drum corresponding to white areas retains the negative charge As ...

Page 107: ... 3 4 3 Data reading scanning Data reading is the process of illuminating the original with light and converting the reflected light into electrical signals The light reflected from the original is directed to the charge coupled device CCD and this optical image information is converted into electrical signals image signals which are then transmitted to the image processing section Fig 3 5 Fig 3 6 ...

Page 108: ...ion into optical signal and exposing the drum surface with the light Semiconductive laser element converts image signals transmitted from the image processing sec tion into optical signal laser emission to expose the drum surface and form an electrostatic latent image on it Fig 3 7 Semiconductive laser element Polygonal mirror Photo conductive drum Image processing section LDR board ...

Page 109: ...a which has no negative charge background fogging is decreased by switching the bias to the positive polarity approx 150 V Charging AC bias To obtain the stable development characteristics AC bias approx 1 100 V is charged to the development bias DC bias Fig 3 8 Fig 3 9 Drum Magnetic roller Photoconductive layer Magnet Magnetic roller Photocon ductive drum Aluminum base Toner Carrier always attrac...

Page 110: ...onsists of the ferrite and resin coating on its surface to provide consistent frictional electrification Note If the developer material is used for a long time beyond its normal life span the toner is caked onto the carrier The charging performance of the carrier is lowered Symptom 1 Image density is lowered 2 Toner scattering occurs 3 Background fogging occurs Solution Replace the developer mater...

Page 111: ...and north poles are arranged inside the magnetic roller as shown in the right figure The developer material forms a brush like fluff which contacts the photoconductive drum surface This is caused by the magnetic force lines between the south and north poles Fig 3 13 N S S Magnetic force line Magnetic roller Photoconductive drum ...

Page 112: ...ackground Size and density of originals The existence of solid black when making prints when a book is copied and the original cover is partially opened Temperature and humidity in the room when making prints Prints density and image quality mode As indicated in the figure below the life of the toner cartridge varies depending on the copy mode and coverage of originals A full block in the figure b...

Page 113: ...ransport guide through the paper Output is controlled as follows to realizes the desirable transfability Fig 3 16 Method A paper passing the side of the drum is charged to the opposite polarity to the that of toner by the corona discharge of the transfer charger The toner moves from the drum surface onto the paper Fig 3 15 Paper position against transfer point Transfer output From leading edge to ...

Page 114: ...s used to forcibly separate the paper which was left around the drum Fig 3 18 Method Apply negative DC bias to the separation charger The positive charge on the paper is decreased The electrostatic adherence force between the paper and drum becomes weak The paper is separated from the drum by its own stiffness Fig 3 17 Paper position against transfer point Separation output From leading edge to 11...

Page 115: ...the recovery blade Fig 3 21 Method The melting point of the toner main ingredi ent resin is 90 100 C Fig 3 19 Fig 3 20 Heat Toner is melted by the heat of the surface of the fuser roller Pressure The pressure roller is pressed against the fuser roller by the springs to increase the adherence of the melted toner onto the paper Heat and pressure are applied to the paper when it passes between the fu...

Page 116: ...n the photoconduc tive drum surface causes ungiven application of the charge for the next printing Fig 3 22 The next print will have a double image The preceding image appears Solution The entire surface of the photoconductive drum is illuminated with light by the discharge LED array The photoconductive drum becomes electri cally conductive All of the negative charge remaining on the pho toconduct...

Page 117: ...others T 2320 T 2320E T 2320D T 2320C T 2320T e STUDIO200L 230 230L 280 280S T 2340 T 2340E T 2340D T 2340C T 2340T e STUDIO202L 232 232S 282 282S D 2320 D 2320C DC 357 V Adjustable output during printing AC 1100 V Adjustment not required during printing 5 Transfer Transfer bias Adjustable output Constant current 580 V Adjustment not required 600 V Adjustment not required 6 Separation AC Adjustabl...

Page 118: ...e STUDIO200L 202L 230 232 280 282 COPY PROCESS June 2004 TOSHIBA TEC 3 14 ...

Page 119: ... 232 280 282 GENERAL OPERATION 4 1 4 GENERAL OPERATION 4 1 Overview of Operation Operation of equipment Operation during initializing pre running and ready Copying operation Drawer feed copying by START button Bypass feed copying Interrupt copying ...

Page 120: ...ure lamp is turned OFF READY WARMING UP is displayed 2 Pre running operation The pre running operation is started when the temperature of the fuser roller surface reaches a cer tain temperature The main motor is turned ON Fuser roller rotated Drum rotated Initialization of feeding system Each drawer tray goes up Pre running operation stops after five seconds 3 When the surface temperature of the f...

Page 121: ...he registration roller The registration sensor is turned ON and aligning is performed Drawer feed clutch OFF after a certain period of time 3 After the carriage operation Registration clutch ON after a certain period of time paper is transported to the transfer area Copy counter operates 4 After the registration clutch is turned ON Transfer charger ON after a certain period of time Copy counter op...

Page 122: ...ying one A4 size sheet fed from the upper drawer Exit sensor MVDEN signal Registration roller clutch Registration sensor Upper transport clutch Middle transport clutch 1st transport sensor Main motor 0 704 0 525 0 60 0 945 1 08 1 21 5 76 1 0 0 992 2 634 2 73 2 79 4 2 0 992 1 85 2 19 5 37 0s Unit sec ...

Page 123: ...The bypass feed roller start to rotate Aligning operation Paper reaches the registration roller After a certain period of time the bypass feed clutch OFF 4 Hereafter the operation 3 through 6 of P 4 3 4 2 3 Drawer feed copying Upper drawer paper feeding is repeated 4 2 5 Interruption copying 1 Press the INTERRUPT button LED INTERRUPT ON Copying operation in progress is temporarily stopped Carriage...

Page 124: ...ormality are displayed 4 3 1 Types of abnormality 1 Abnormality cleared without turning OFF the door switch A Add paper B Pick up failure in bypass C Set key copy counter 2 Abnormality not cleared without turning OFF the door switch D Misfeed in equipment E Replace the toner cartridge F Developer unit not installed properly 3 Abnormality not cleared without turning OFF the main switch G Call for s...

Page 125: ... paper Drawer empty sensor detects the presence or absence of paper When drawer is not installed No drawer detected Tray not going up drawer empty sensor OFF Add paper displayed START button disabled When drawer is installed Drawer detected Tray going up drawer empty sensor OFF Add paper displayed START button disabled ...

Page 126: ...egardless of presence absence of paper Cleared by turning the power ON OFF Tray up sensor is turned ON in a fixed period of time The tray motor stops At this time if the empty sensor is ON It is judged that there is paper OFF It is judged that there is no paper Drawer area of the LCD panel blinks When the drawer is selected When the paper in the drawer runs out during copying The tray up sensor tu...

Page 127: ...ypass tray When the key copy counter optional is pulled out from the equipment which installs it Set key copy counter displayed Copying operation disabled When the counter is pulled out during copying Copying is stopped when the key copy counter is pulled out Set key copy counter displayed Copying operation disabled Exit sensor detects jamming of the leading edge of paper Registration clutch ON Fi...

Page 128: ... is opened during copying Paper jam E410 Registration sensor detects jamming of the leading edge of paper Registration sensor is not turned ON in a fixed period of time after the leading edge of paper passed the 1st transport roller Paper jam E200 E210 E270 E280 E300 E330 and E3C0 During paper feeding from ADU 1st transport sensor is not turned ON in a fixed period of time after the ADU clutch is ...

Page 129: ...riod of time after the feed clutch is turned ON Paper jam E220 E310 E320 E340 E360 E3D0 and E3E0 Error code differs depending on the paper source Refer to the error code table in the Service Handbook Toner density becomes low Auto toner sensor detects the absence of the toner Control circuit Install new toner cartridge displayed the copying operation disabled Solution Open the front cover and repl...

Page 130: ...tch ON DC power ON Restart YES Cover is open NO Heater lamp ON YES YES YES YES Registration sensor ON NO NO NO NO Exit sensor ON ADU entrance exit sensors ON 1st transport sensor ON 2nd transport sensor ON Paper jam A NO NO Scan motor ON Home position detected NO YES YES Peak detected Call for service C260 B 2 5 seconds elapsed NO YES Call for service C270 C280 ...

Page 131: ...of the fuser roller ready for pre running YES NO Thermistor broken Heater lamp broken Polygonal motor in abnormal condition YES YES YES NO NO NO Main motor ON Tray up motor ON YES Fuser roller reached ready temp C410 C430 NO Main motor OFF READY Call for service C440 Call for service CA10 Call for service ...

Page 132: ...normal rotation YES NO CA10 Call for service Laser ON Transfer charger ON Transfer charger OFF H Sync OK NO YES NO Call for service CA20 Remaining set number 0 YES Laser OFF Processing system control completed Feed clutch ON Feed clutch OFF Registration clutch ON Counter ON OFF Registration clutch OFF Remaining set number 0 NO YES Exit sensor detected leading edge of paper OK C NG E010 Paper jam C...

Page 133: ...30 232 280 282 GENERAL OPERATION 4 15 Fig 4 6 READY Drum rotation reversed Main motor OFF Paper jam E020 NG OK Exit sensor detected trailing edge of paper C Polygonal motor OFF Main charger OFF Discharge LED OFF Developer bias OFF Exit motor OFF ...

Page 134: ...e STUDIO200L 202L 230 232 280 282 GENERAL OPERATION June 2004 TOSHIBA TEC 4 16 ...

Page 135: ...and select various modes and LEDs and an LCD to display the state of the equipment or the messages When the operator s attention is required graphic symbols appear with messages explaining the condi tion of the equipment in the LCD panel This equipment has a movable control panel which enables to adjust its angle to the operator It also has improved its operationality and visibility with the enlar...

Page 136: ...e STUDIO200L 202L 230 232 280 282 CONTROL PANEL June 2004 TOSHIBA TEC 5 2 5 2 Items Shown on the Control Panel Fig 5 2 Fig 5 3 ...

Page 137: ...Y CLEAR button to delete the job 10 READY WARMING UP Scanner warming up 11 READY PRINTING Printing out the data Scanning is enabled 12 READY ADDING TONER Supplying toner Scanning is enabled 13 READY INNER TRAY FULL Inner tray in the equipment is full Scanning is enabled When the bridge unit is installed Resumes printing by removing papers from the tray 14 READY CHECK STAPLER No staples in finisher...

Page 138: ...he paper size which is not specified for duplex copying is set 34 Cannot use this media type Displayed when the paper size which is not specified for the functions such as stapling or hole punching is set 35 Set standard size Displayed when the paper size which is not acceptable is set depends on the setting Re set the paper size 36 Cannot staple this paper type Displayed when the paper type which...

Page 139: ...e 51 Set insert2 sheets in the same direction as the origi nals Displayed when the direction of insertion sheet sheet 2 is different from that of other pages at Sheet Insertion Mode 52 READY CHANGE THE PAPER TYPE Displays when the printing is stopped because of media type mismatch 53 Set transparency film in A4 LT direction Displayed when the selected paper size is other than A4 LT at OHP mode 54 ...

Page 140: ...ory full state Displayed only in FAX Function 73 The number of originals exceeds the limits Will you save stored origi nals Displayed when confirming the user to save the scanning data as much as stored at memory full state Displayed only in Scanning Function 74 Install new toner cartridge No toner in the cartridge Displayed when toner is running out Copying not enabled 75 Time for periodic mainte...

Page 141: ... of builds exceeds the limits Select either printing or canceling 84 The number of builds exceeds the limits will you save stored origi nals Displayed when the number of builds exceeds the limits Select either printing or saving 85 This setting cannot be changed now Displayed when the setting is changed during the build job is dis continued No Message State of equipment Note ...

Page 142: ...ops and READY Press START to copy and MEMORY CLEAR are displayed Press CLEAR button after set ting the copy mode Number of printouts changes to 1 while the setting remains unchanged after the copy mode is set Number of printouts changes to 1 while the setting remains unchanged after the copy mode is set Display not changed Display not changed Press CLEAR button after key ing in numbers digital key...

Page 143: ...s HELP screen Display not changed Display not changed Press START button with the original set on RADF Displays COPYING Wait Warming Up Auto Start is displayed Display not changed Display not changed During READY status During warming up Auto job start reserved Scanning original Scanning original and printing out the copy ...

Page 144: ...Y Press START to copy and MEMORY CLEAR are dis played Display not changed Display not changed Display not changed Display not changed Press CLEAR button after set ting the copy mode Number of print outs changes to 1 while the set ting remains unchanged after the copy mode is set Display not changed Number of printouts changes to 1 while the set ting remains unchanged after the copy mode is set Num...

Page 145: ...NS screen Display not changed Press HELP button Displays HELP screen Display not changed Displays HELP screen Switches to the screen previously displayed Display not changed Press START button with the original set on RADF Displays COPY ING and RADF starts feeding Display not changed Displays COPYING and RADF starts feeding Displays COPY ING and RADF starts feeding Energy saving mode is cleared an...

Page 146: ...ue mode transmissive type LCD with 640x240 dot display capacity It consists of a driver LSI frame printed circuit board and lateral type CCFL backlight STN Super Twisted Nematic CCFL Cold Cathode Fluorescent Lamp 2 Block diagram Fig 5 5 640 x 240 XSCL UD0 UD1 UD2 UD3 WF LP VDD GND V0 VEE LCDEN LCD PANEL 640 x 240 DOTS 160 160 160 160 120 120 IC1 IC2 IC3 IC4 IC5 IC6 Power supply ...

Page 147: ...the SYS board The control methods of the LED and buzzers differ depending on the model e STUDIO200L 230 230L 280 280S They are switched to ON OFF with control signals from the SYS board e STUDIO202L 232 232S 282 282S They are switched to ON OFF with the signals output from the panel processing CPU based on serial data transmitted from the SYS board Fig 5 6 Inverter for backlight Contrast adjustmen...

Page 148: ...e STUDIO200L 202L 230 232 280 282 CONTROL PANEL June 2004 TOSHIBA TEC 5 14 4 Data Transmission Fig 5 7 LOAD FRAME LOAD 240 1 2 1 2 240 1 2 240 CP x 640 4 pulses 1 tF 1 tF FRAME D0 D3 CP ...

Page 149: ...LDON 0 signal becomes L level Also when IC pin 17 changes to L the current flows from 5VL via the transistor to the LED COPY to turn ON the LED COPY a The transistor Q3 connected to the LED anode is ON b The output from the cathode side of the LED is L level The LED turns ON when the conditions a and b are met Conditions to turn ON the LED LDON0 L L 17 D7 Q3 Current IC R3 COPY LED 5VL G ...

Page 150: ...C 5 16 5 5 Disassembly and Replacement A Stopper Note When taking off the control panel check the position of the stopper if the stopper is at the position B remove the stopper or move it to the position A Fig 5 9 1 Slide the stopper and pull it out Fig 5 10 A B Stopper ...

Page 151: ...ght upper cover 2 P 2 32 E Front upper cover P 2 33 F Right upper cover 1 P 2 33 G Right upper cover 2 2 Disconnect 1 connector 3 Remove 2 screws and 2 harness clamps Then release the harness from 3 harness clamps Fig 5 11 4 Lower the control panel unit and remove 4 screws 5 Take off the control panel unit while sliding it Fig 5 12 Control panel unit 05 11 ...

Page 152: ... LCD C 1 e STUDIO200L 230 230L 280 280S 1 Take off the control panel unit P 5 17 B Control panel unit 2 Remove 3 screws and take off the cover Fig 5 13 3 Remove 5 screws and take off the hinge bracket Fig 5 14 4 Disconnect 5 connectors and remove 1 har ness clamp Then take off the DSP board Fig 5 15 Cover Hinge bracket DSP board 05 11 ...

Page 153: ...9 C 2 e STUDIO202L 232 232S 282 282S 5 Remove 4 screws and take off the LCD Fig 5 16 6 Remove 16 screws and take off the KEY board Fig 5 17 1 Take off the control panel unit P 5 17 B Control panel unit 2 Remove 3 screws and take off the cover Fig 5 18 LCD KEY board Cover 05 11 ...

Page 154: ...C 5 20 3 Remove 5 screws and take off the hinge bracket Fig 5 19 4 Disconnect 5 connectors 5 Release the harness from 2 harness clamps 6 Remove 1 screw and take off the DSP board Fig 5 20 7 Remove 4 screws and take off the LCD Fig 5 21 Hinge bracket DSP board LCD 05 11 ...

Page 155: ...5 June 2004 TOSHIBA TEC e STUDIO200L 202L 230 232 280 282 CONTROL PANEL 5 21 8 Remove 16 screws and take off the KEY board Fig 5 22 KEY board 05 11 ...

Page 156: ...e STUDIO200L 202L 230 232 280 282 CONTROL PANEL June 2004 TOSHIBA TEC 5 22 ...

Page 157: ...ion is performed converting the optical image data into an electrical analog signal This analog sig nal is changed to a digital signal which then performs various corrective processes necessary for image formation After that an arithmetic operation is performed on the digital signal which is then transmitted to the data writing section Fig 6 1 Rail for carriage 2 Carriage 2 Carriage 1 CCD board SL...

Page 158: ... driven by the scan motor and scans an original on the glass Fig 6 2 Exposure lamp This lamp is a light source to irradiate the original on the glass one 16 W xenon lamp Inverter board This inverter board controls lighting of the xenon lamp Reflector This is a reflecting plate to efficiently lead the light from the exposure lamp to the surface of the original on the glass Mirror 1 This mirror lead...

Page 159: ... distance is also half that of the carriage 1 Fig 6 4 4 Lens unit The light reflected from the mirror 3 is led to the CCD placed at the focal point of the lens which is fixed at this position 5 CCD driving PC board CCD board This is a board to convert the optical image signal which has been converted by the CCD into an analog signal Fig 6 5 6 Automatic original detection sensor APS sensor The size...

Page 160: ...ges 1 and 2 to their respective home position The home position is detected when the carriage 1 passes the carriage home position sensor When START is pressed both of the carriages start to move and scan the original on the glass Scanning an original on the RADF The carriage 1 stays at the shading position during shading correction and at the scanning posi tion during scanning operation Wire pulle...

Page 161: ... 24V A 24V DG EN CWB RESET VREF M3 M2 M1 CLK GND MOTEN MOTDIR MOTRST MOTREF e STUDIO200L 230 230L 280 280S e STUDIO202L 232 282 MOTMD3 MOTMD2 MOTMD1 MOTCLK Clock input Cut off output Reset Excitation mode setting 3 Excitation mode setting 2 Excitation mode setting 1 Rotation direction setting RESET IC Scanner CPU Motor driver Voltage to set value for motor current GND GND GND 5V 24V 5V M Scan moto...

Page 162: ...CLK becomes ON and after the last pulse becomes OFF Cut off the drive out put MOTEN Inpu t Excitation drive is turned ON OFF H Normal operation Excited L Excitation drive is forcibly shut off Not excited Voltage to set value for the motor current MOTREF Inpu t Motor wire current value is set in the range of 0 to 1 7 A phase by applying the analog voltage 0 to 5 V Set the excitation mode 1 to 3 MOT...

Page 163: ...t Fig 6 8 YES YES NO YES NO NO Power ON Carriage home position sensor ON Carriage home position sensor OFF Carriage home position sensor ON Scan motor rotating Carriage move forward Scan motor rotating Carriage move backward Carriage home position data set Deceleration Stop Move to peak detection position Move to carriage waiting position Peak detection Completion of initialization Deceleration St...

Page 164: ...ignals The exposure amount is controlled in two ways White reference formation reads the light amount reflected from the white shading correction plate Black reference formation reads the light amount at the specified position with the exposure lamp lights OFF 3 Image processing circuit A series of image processes such as a gamma correction and a shading correction are applied on the output signal...

Page 165: ...pipe Fig 6 10 2 Behavior inside the lamp Electrons inside the pipe are led to the electric field by applying voltage to a pair of the external elec trodes and discharging starts The electrons then flow and clash with a xenon atom inside the pipe to excite it and generate an ultraviolet ray This ultraviolet ray converts the fluorescer into visible light Fig 6 11 PET film Aluminum tape electrode Adh...

Page 166: ...ng conditions LMPON L Exposure lamp ON signal Lamp turns ON at L 5VSW ON L H 5V SW ON signal Controls 5VSW at CPU Normally L WDTOUT H L Watchdog timer signal Level L when CPU is out of control Xenon lamp O N OFF Exposure lamp IC4 IC6 IC21 IC34 IC9 5VSW 5V 5V Q4 D3 Q6 24V LOW HIGH LMPON 5VSWON WDTOUT Scanner CPU Inverter board Xenon lamp ...

Page 167: ...odd number elements are separated and output in parallel via two channels Fig 6 13 6 5 2 Shading correction Signal voltages read by the CCD have the following characteristics 1 The light source has a variation in its light distribution 2 Since the light beams reflected from the original are converged using a lens the light path is the shortest at the center of the CCD and the longest at the ends T...

Page 168: ... the base frame of the scanner unit as shown in the Fig 6 14 Each sensor consists of an infrared LED Light Emitting Diode on the light emitting side and a phototransistor on the light receiving side When there is an original on the original glass the light beams from the LEDs are reflected by the orig inal and led to the phototransistors This means that the presence of the original is detected by ...

Page 169: ...ceive the light reflected from the original and if the conditions for original size shown in a matrix of 4 are met the size of the original is instantly detected 3 The output signal from each sensor is input to CPU on the SLG board to determine the size of the original Fig 6 15 VDD GND PWA SL APS C APS 3 APS 2 APS R CPU VDD GND PWA SLG APS C APS 2 APS 3 APS 1 APS R CPU Reflection type photosensor ...

Page 170: ... 230 232 280 282 SCANNER June 2004 TOSHIBA TEC 6 14 A4 Series Fig 6 16 LT Series Fig 6 17 Sensor detection points A5 B5 A4 B4 A3 A5 R A4 R B5 R APS R APS C APS 3 APS 1 APS 2 ST LT LG LD ST R LT R APS R APS C APS 3 APS 2 ...

Page 171: ... the output signal change or the state that there is no original remains No original The output signals from all sensors are level H The reproduction ratio and paper size are not selected The size change is always observed and detected The carriage 1 stays at the waiting position even if the reproduction ratio changes corresponding to the change of the original size When the platen sensor is ON Th...

Page 172: ...nd a pho totransistor The sensor detects an original with a pulse modulation of LED Fig 6 18 The LED is driven by a pulse having a 130 µsec cycle and an 8 µsec ON time When the pho totransistor receives the same signal as this pulse it is determined that there is an original The pulse modulation is performed inside the reflection type phototransistor 130µsec LED Photoransistor Original 8µsec ...

Page 173: ...er 1 P 2 33 F Right upper cover 1 2 Remove 2 screws and take off the fixing bracket Fig 6 19 3 Take off the original glass Note When installing fit 2 small protrusions of the original glass in the groove of the equipment and fix the original glass with the fixing bracket by pushing it to the left rear direction Fig 6 20 Fixing bracket Original glass ...

Page 174: ...original detection sensor APS sensor C 1 A4 series 1 Take off the original glass P 6 17 A Original glass 2 Remove 6 screws and take off the lens cover Fig 6 21 1 Take off the lens cover P 6 18 B Lens cover 2 Disconnect 1 connector from the SLG board 3 Remove 6 harness clamps Fig 6 22 Lens cover ...

Page 175: ...ER 6 19 C 2 LT series 4 Take off 5 APS sensors by removing 1 screw each Fig 6 23 1 Take off the lens cover P 6 18 B Lens cover 2 Disconnect 1 connector from the SLG board 3 Remove 6 harness clamps Fig 6 24 4 Take off 4 APS sensors by removing 1 screw each Fig 6 25 ...

Page 176: ...nit Fig 6 26 Notes 1 When installing fix the lens unit with the screws while pushing the unit to the rear side 2 Refer to 3 7 2 Lens Unit in the Service Handbook for the adjustment method 3 Never attempt to loosen the screws 8 pc of the lens unit denoted with arrows 4 Handle the unit with extra care Do not touch the adjusted area or lens Hold the unit as shown in the figure at right Fig 6 27 Fig 6...

Page 177: ... cover 3 Move the carriage 1 to the center position where the side of the frame is cut out Fig 6 29 Note Rotate the drive pulley to move the carriage Fig 6 30 4 Disconnect 1 connector from the inverter board Pull out the harness from 2 harness clamps and the frame of the carriage Note When disconnecting the connector make sure not to overload the carriage frame Fig 6 31 Carriage 1 Drive pulley ...

Page 178: ...ff by pulling out toward you Note Make sure to hold only the black molded part of the exposure lamp Do not touch any other part than this black molded part Fig 6 33 1 Take off the original glass P 6 17 A Original glass 2 Take off the front upper cover and upper rear cover P 2 32 E Front upper cover P 2 34 I Upper rear cover 3 Move the carriage 1 to the position shown in the figure at right and mat...

Page 179: ...he cutout part Pull down each bracket fixing the wire from the hole of the frame on both ends of the car riage 1 Fig 6 35 Note Rotate the drive pulley to move the carriage Fig 6 36 5 Disconnect 1 connector from the SLG board Remove 2 seals and release the harness Fig 6 37 Bracket Drive pulley Seal ...

Page 180: ...e bracket temporarily at the position A Then move it to the direction B slowly push it to the end of frame and fix at this position with the screws 2 Refer to the 3 7 1 Carriages in the Ser vice Handbook 3 Rotate the drive pulley to move the car riage Fig 6 39 1 Take off the carriage 1 P 6 22 F Carriage 1 Note When replacing the mirror 1 replace it together with the carriage 1 The mirror 1 should ...

Page 181: ...carriage 1 P 6 22 F Carriage 1 2 Install the wire holder jig to each pulley on front and rear sides not to loosen the car riage wire Note Refer to 3 7 1 Carriages in the Service Handbook for the installation direction of the wire holder jig Fig 6 41 3 Remove the tension springs on both front and rear sides 4 Remove the carriage wires on both front and rear sides Fig 6 42 Inverter board Wire holder...

Page 182: ...ff the carriage 2 P 6 25 I Carriage wire Carriage 2 Note When replacing the mirrors 2 and 3 replace them together with the carriage 2 The mir rors 2 and 3 should not be removed sepa rately 1 Take off the rear cover an upper rear cover P 2 31 C Rear cover P 2 34 I Upper rear cover 2 Disconnect 1 connector from the platen sen sor on the left rear position of the equipment upper side 3 Release the la...

Page 183: ...ion sensor on the left rear position of the equipment upper side 3 Release the latches of the sensor and take off the carriage home position sensor Fig 6 45 1 Take off the rear cover upper rear cover P 2 31 C Rear cover P 2 34 I Upper rear cover 2 Disconnect the connector of scan motor Fig 6 46 3 Remove 3 screws and take off the scan motor Note When installing use a stepped screw to fix the left r...

Page 184: ...scan motor is pulled by the belt ten sion jig Fix the screw B and then C at the stopped position 5 Remove the belt tension jig Fig 6 48 1 Take off the lens cover P 6 18 B Lens cover 2 Disconnect 8 connectors from the SLG board 3 Remove 6 screws and take off the SLG board Note The SLG board for e STUDIO200L 230 280 series and the one for e STUDIO202L 232 282 series are different To avoid confusion ...

Page 185: ...ing processing gamma correction gradation processing scanner high quality image processing and exter nal output system interface LGC board Smoothing processing external input system interface image area control laser related control and printer high quality image processing Temporary storage section HDD Image processing writing control section LGC System section SYS Image processing scanning contr...

Page 186: ...riance in CCD elements and the light source is performed and the digital signal is output as an image signal from the scanning section Fig 7 2 The image processing section inputs the image signal from the scanning section and applies various image processing on the signal then transmits the output result to the writing section Images are processed by the SLG board and LGC board in this equipment T...

Page 187: ...m interface Image area control Laser related control Printer high quality image processing High quality image processing Image memory editing Editing processing Gamma correction Gradation processing Scanner high quality image processing External output system interface SLG board LGC board Laser drive Laser drive board Image data flow SYS board Sorting group copy magazine sorting 2in1 4in1 single s...

Page 188: ...ality image processing Background processing function Range correction This function removes undesirable background so that the original can be reproduced appropri ately By using the background adjustment function while manually adjusting the image density undesirable background of the original can be removed if any and some necessary but disap peared background can be recovered By using this func...

Page 189: ...operation is performed for all the pixels to accomplish the high reproducibil ity of original The following is the case that the low pass filtering is applied on the primary scanning pixel Fig 7 5 High pass filter processing Character outline blurs when the original such as text with big difference in density among the pixels is optically scanned and output from the CCD Characteristic of the lens ...

Page 190: ... signals inside the rectangular area are left and the other image signals are eliminated Masking Using rectangular area signals the image data inside the rectangular area are erased Negative positive reversing This function reverses the entire date from negative to positive or vice versa 4 Gamma correction This function corrects the input output characteristics of the scanner printer and adjusts t...

Page 191: ...AGE PROCESSING 7 7 6 External output system interface This function controls the output of the output interface 7 Scanner high quality image processing This function corrects the image signals scanned by the scanner and reproduces them in a higher image quality ...

Page 192: ... processing circuit The image processing section mounted on the LGC board realizes the followings 1 Smoothing processing This function removes jaggy area and output images after processing the smoothing the character outline 2 External input system interface This function controls the input of the input interface 3 Image area control This function sets the effective image area in horizontal and ve...

Page 193: ...d Laser driving PC board The signal is then laser controlled and written on the drum 1 Setting of effective image area Top bottom left and right margins 2 Horizontal synchronization signal H sync clock generation section Reference clock signal in the printer section synchronized with H sync and its signal 3 Laser drive section ON OFF control of the semiconductive laser and APC Auto Power Control ...

Page 194: ...e STUDIO200L 202L 230 232 280 282 IMAGE PROCESSING June 2004 TOSHIBA TEC 7 10 ...

Page 195: ...als transmitted from the scanner printer controller etc to form a latent image The image signal is converted into the light emission signal of the laser diode on the laser driving PC board then radiated on the drum through the optical devices such as cylinder lens polygonal mirror and f lenses The unit must not be disassembled in the field as they are very sensitive to dust and finely adjusted at ...

Page 196: ...ont Laser driving PC board Laser diode Laser emission unit Finite focus lens Aperture Cylinder lens Polygonal mirror Paper exit Polygonal motor Polygonal motor drive PC board Rear H sync signal detection PC board Slit glass for outgoing laser beam H Sync returning mirror fθ lens 2 fθ lens 1 ...

Page 197: ...d on the drum surface CAUTION The beam of the semiconductor laser is very weak about 5 mW however the focused parallel rays create great energy which is hazardous Some materials of the components of the laser optical unit are metal Since the unit is in a sealed container there is no danger of laser leakage during normal operation Note The laser beam is not visible Pay the closest attention when ha...

Page 198: ... mirror is rotated by the polygonal motor the reflected laser beam moves in sync with the rotation The direction of the movement is the primary scanning direction of the image One scan is performed on one plane of the polygo nal mirror Since the polygonal mirror has eight planes eight scans are performed in one rotation of the polygonal mirror c Polygonal mirror cover The polygonal mirror cover re...

Page 199: ... glass The slit glass is located where the laser beam is output from the laser optical unit and it protects the unit from dust a Uniform velocity scanning Since the polygonal mirror is rotating at a uni form velocity the laser beam reflected from the mirror is scanned over the drum surface at a uniform angle namely the pitch between the dots on the drum is wider at both ends than at the center of ...

Page 200: ... control circuit for every scan ning The laser driver circuit increases the forward current when the laser power is insufficient and decreases the current when the power is excessive to maintain a constant optical output The relation between the current and optical out put of the semiconductive laser is as shown at right Light emission is started when the forward current reaches or becomes larger ...

Page 201: ... a DC motor which is PLL controlled by clock signals The signals from LGC board control the polygonal motor Signal Level L Level H Remarks POMON ON OFF Polygonal motor ON signal POMCK Polygonal motor reference clock signal POMPL Normal rotation Abnormal rotation Polygonal motor PLL signal LGC board Polygonal motor P54 BUSAK PB6 TOA P53 BUSRQ POMON POMCK POMPL Engine CPU IC22 IC8 Buffer ...

Page 202: ...nternal cooling fan 2 is a DC fan motor for cooling down the laser optical unit and the switching power supply It discharges the heat generated by the polygonal motor and the switching power supply It is controlled to switch rotating in high speed low speed or stopping according to the condition of the equipment ...

Page 203: ... Take off the toner cartridge 2 Take off the inner tray and tray back cover P 2 35 K Inner tray P 2 36 M Tray back cover 3 Lift the duct and disconnect 1 connector Fig 8 10 4 Remove 2 screws and take off the plate Fig 8 11 5 Disconnect 1 connector from the rear frame Disconnect 2 connectors from the LRL board Fig 8 12 Duct Plate 05 07 ...

Page 204: ...ard LRL board 6 Remove 3 screws with spring Then take off the laser optical unit Fig 8 13 1 Take off the plate P 8 9 A Laser optical unit Fig 8 14 2 Disconnect 3 connectors from the LRL board Remove 1 screw and release 2 lock ing supports then take off the LRL board Fig 8 15 Laser optical unit Plate LRL board 05 07 ...

Page 205: ... cover P 2 31 C Rear cover 2 Remove 1 screw and take off the harness clamp Take off the duct upper cover and ozone filter Fig 8 16 3 Disconnect 1 connector and remove 2 screws and then take off the duct and the internal cooling fan 2 Fig 8 17 Duct upper cover Ozone filter Internal cooling fan 2 Duct Screw Screw Connetor 04 07 ...

Page 206: ...e STUDIO200L 202L 230 232 280 282 LASER OPTICAL UNIT June 2004 TOSHIBA TEC 8 12 ...

Page 207: ...le as only an option MY 1021 depending on the destination or version Sectional view of paper feeding section Front side Fig 9 1 No Name No Name 1 Upper drawer separation roller 13 Bypass separation roller 2 Upper drawer feed roller 14 Upper drawer tray up sensor 3 Upper drawer pickup roller 15 Upper drawer empty sensor 4 Lower drawer separation roller 16 Upper drawer paper stock sensor 5 Lower dra...

Page 208: ...HIBA TEC 9 2 Paper feeding section drive system Rear side Fig 9 2 35 28 28 27 22 31 28 Input 34 40 40 26 38 31 35 33 35 31 24 26 25 31 25 31 33 34 SFB Upper drawer feed clutch Upper transport clutch Middle transport clutch Lower transport clutch Lower drawer feed clutch ...

Page 209: ... which aligns the leading edge of paper The registration roller then rotates to transport the paper to the transfer section 7 Bypass paper sensor This sensor detects whether paper is set in the bypass tray or not If it is bypass feeding is per formed in preference to drawer feeding And also detects whether paper has been transported from the bypass tray or not In other words whether the leading tr...

Page 210: ...ing the drive from the main motor 14 Middle transport clutch Switches the high speed of the 1st transport roller or the 2nd transport roller to the low speed Turn ing ON this clutch makes the 1st transport roller or the 2nd transport roller drive at low speed the same speed as that of registration roller 15 Registration roller clutch Drives the registration roller ...

Page 211: ...the drive from the main motor is transmitted to the pickup roller through the gears and shaft Then the paper is picked up The paper picked up is transported to the transport path in the equipment by the bypass feed roller When there is no paper remaining on the bypass tray the bypass pickup solenoid is turned OFF and the pickup roller returns by the spring force The separation roller works not to ...

Page 212: ...ce Then the drawer tray lifts up and paper feeding is enabled When the drawer feed clutch is turned ON the drive from the main motor is transmitted Then the feed roller and pickup roller rotate to transport the paper from the drawer The separation roller under the feed roller prevents multiple transporting of paper Fig 9 4 Drawer feed clutch Drawer feed roller Drawer separation roller Drawer picku...

Page 213: ...her and the upper sheet is trans ported in the direction of black arrow since the frictional force between two sheets is small Example When only one sheet enters into the separation roller section Since the transporting force of the feed roller is greater than the braking force of the separation roller these two rollers rotate together to trans port the sheet to the registration roller When two sh...

Page 214: ...ON OFF of each transport clutch and the operation of each transport roller are as follows 1st transport roller 2nd transport roller Upper transport clutch Middle transport clutch Lower transport clutch Low speed Low speed OFF ON OFF Low speed High speed OFF ON ON High speed High speed ON OFF OFF Stop Stop OFF OFF OFF ...

Page 215: ...per If either of the feed sensors is ON there is paper on the transport path at power ON it is determined that a paper jam has occurred and no operation is enabled until the jammed paper is removed B Ready status After the tray is moved up to check the presence absence of paper as described above the equipment enters the ready state During the ready mode the tray stays at the raised position When ...

Page 216: ...r ON and the paper is aligned by the registration rollers The transport clutch upper lower are turned OFF and the transport roller stop rotating The registration clutch and transport clutch middle are turned ON and the paper is trans ported to the transfer unit Upper drawer The feed clutch is turned ON and the pickup roller and feed roller rotate to start paper feeding The leading edge of paper tu...

Page 217: ...ig 9 7 The motor rotates or stops by the control signals from ASIC When the PA7 CLTRM 1A of the ASIC becomes H and PA6 CLTRM 0A becomes L levels current flows into the motor coil and the motor is rotated When both of PA7 CLTRM 1A and PA6 CLTRM 0A of the ASIC become H level the motor is braked and stopped When both of PA7 CLTRM 1A and PA6 CLTRM 0A of ASIC become L level the motor waits for the next...

Page 218: ...e block diagram of TA8428 and the operation of the control logic are shown below Fig 9 8 Input Output State IN1 IN2 M M H H L L Brake L H L H CCW H L H L CW L L OFF High impedance Stop 1 2 3 4 5 6 7 IN1 IN2 M GND M N C VCC Thermal shutdown over current protection circuit Control logic ...

Page 219: ...ig 9 9 1 If the ADU is not installed take off the right front hinge cover the right rear hinge cover and the bypass upper cover P 2 38 P Right front hinge cover P 2 39 Q Right rear hinge cover P 2 39 R Bypass upper cover If the ADU is installed take off the ADU P 15 10 A Automatic Duplexing Unit ADU 2 Remove 1 spring 3 Disconnect the connector of the bypass feed clutch Fig 9 10 Clip Shaft Bypass p...

Page 220: ...s and take off the bypass feed unit Fig 9 11 1 Take off the bypass feed unit P 9 13 B Bypass feed unit 2 Remove 1 screw and take off the bypass separation roller cover Fig 9 12 3 Take off the bypass separation roller unit Fig 9 13 Screw Screw Bypass feed unit Bypass separation roller cover Screw Bypass separation roller unit ...

Page 221: ...clutch spring and bypass separation roller from the shaft Fig 9 14 1 Take off the bypass feed unit P 9 13 B Bypass feed unit 2 Remove 2 screws and take off the upper guide Fig 9 15 3 Lift up the arm remove 1 screw and then take off the bracket Fig 9 16 Bypass separation roller Shaft Cover Arbor Clutch spring Upper guide Arm Bracket ...

Page 222: ...ss feed roller unit from the shaft Then take off the bypass feed roller Fig 9 17 1 Take off the bypass feed unit P 9 13 B Bypass feed unit 2 Remove 2 screws and take off the upper guide Fig 9 18 3 Release the latches and take off the bypass paper sensor Fig 9 19 Bypass feed roller Bypass feed roller unit Clip Upper guide Bypass paper sensor ...

Page 223: ...ake off the right front hinge cover the right rear hinge cover and the bypass upper cover P 2 38 P Right front hinge cover P 2 39 Q Right rear hinge cover P 2 39 R Bypass upper cover If the ADU is installed take off the ADU P 15 10 A Automatic Duplexing Unit ADU 2 Open the side cover 3 Disconnect 2 connectors Remove 5 screws and take off the bypass unit Note Make sure to let the disconnected conne...

Page 224: ...ct 1 connector Remove 2 screws and take off the bypass tray Note The bypass tray is removable without taking off the bypass unit from the equipment Fig 9 22 3 Pull out the hinge assembly from the bypass tray Fig 9 23 1 Take off the bypass tray P 9 18 H Bypass tray 2 Remove 3 screws and take off the bypass tray upper cover Fig 9 24 Bypass tray Hinge Screw Screw Bypass tray upper cover ...

Page 225: ...G Bypass unit 2 Take off the bypass tray P 9 18 H Bypass tray 3 Take off the bypass feed unit P 9 13 B Bypass feed unit 4 Remove 1 screw and take off the bypass separation roller cover P 9 14 C Bypass separation roller 5 Remove 2 screws and take off the 2nd trans port sensor cover Fig 9 26 6 Remove 3 screws and take off the bypass unit lower cover Fig 9 27 Paper size detection sensor 2nd transport...

Page 226: ...s and take off the 2nd transport sensor Fig 9 28 8 Disconnect 1 connector Remove 2 screws and take off the bypass pickup solenoid and solenoid arm Fig 9 29 1 Take off the drawer 2 Remove 1 screw and take off the drawer feeding unit by sliding it to the front side Fig 9 30 2nd transport sensor Solenoid arm Bypass pickup solenoid Drawer feeding unit ...

Page 227: ...f the drawer feeding unit P 9 20 K Drawer feeding unit 2 Disconnect the connector and release the latches to take off the tray up sensor Fig 9 31 1 Take off the drawer feeding unit P 9 20 K Drawer feeding unit 2 Disconnect the connector and release the latches to take off the empty sensor Fig 9 32 Tray up sensor Empty sensor ...

Page 228: ...or arm 3 Disconnect the connector and release the latches to take off the paper stock sensor Fig 9 33 1 Take off the drawer feeding unit P 9 20 K Drawer feeding unit 2 Remove 1 screw and take off the separation roller holder Fig 9 34 3 Detach the lever from the holder and take off the separation roller with the shaft Fig 9 35 Paper stock sensor Paper stock sensor arm Separation roller holder Lever...

Page 229: ... Drawer feeding unit 2 Take off the separation roller holder P 9 22 O Separation roller 3 Remove the clip and take off the feed roller Fig 9 37 1 Take off the drawer feeding unit P 9 20 K Drawer feeding unit 2 Remove the pickup roller assembly from the pickup arms Take off the timing belt and then take off the pickup roller assembly Fig 9 38 Arbor Arbor Cover Clutch spring Separation roller Shaft ...

Page 230: ...ake off the drawer feeding unit P 9 20 K Drawer feeding unit 2 Disconnect the connector and release the harness from the harness clamp Fig 9 40 3 Remove 2 screws and take off the clutch bracket and bushing Note Match the protruding portion of the clutch with the position shown in the figure for assembling Fig 9 41 E ring One way clutch Pickup roller Pulley E ring Connector Clutch bracket Bushing ...

Page 231: ...rawer feed clutch Fig 9 42 Note Attach the clutch to the shaft referring to the figure at right Fig 9 43 1 Take off the main motor drive unit P 10 5 B Main motor drive unit 2 Loosen 2 setscrews Disconnect 1 connector and take off the registration roller clutch Fig 9 44 Drawer feed clutch Setscrew 0 2 0 5mm Registration roller clutch Connector Setscrew ...

Page 232: ...m 2 harness clamps and take off the tray drive unit with the bracket Fig 9 45 4 Remove 2 screws and take off the bracket fixing the PCI slot 5 Remove 4 screws and take off the tray drive unit from the bracket Fig 9 46 6 Place the unit with its coupling up and release 6 latches to take off the cover Note Be careful in taking off the cover because there is a spring in the tray drive unit Fig 9 47 Co...

Page 233: ...alling the motor Fig 9 49 1 Take off the right upper cover 3 connecting port cover and right rear hinge cover P 2 34 H Right upper cover 3 P 2 37 O Connecting port cover P 2 39 Q Right rear hinge cover 2 Take off the tray drive unit P 9 26 T Tray drive unit Tray up motor 3 Take off the main motor drive unit P 10 5 B Main motor drive unit 4 Remove 1 screw and take off the bracket fix ing the upper ...

Page 234: ...mp Then take off the upper transport clutch Fig 9 51 6 Remove 3 screws Release the harness from 1 harness clamp and take off the fixing bracket Fig 9 52 7 Disconnect 1 connector Take off 1 bushing and middle transport clutch Fig 9 53 Connector Upper transport clutch Harness clamp Fixing bracket Harness clamp Bushing Connector Middle transport clutch ...

Page 235: ...ig 9 54 9 Remove 2 screws and disconnect 1 connec tor Release the harness from 1 harness clamp and then take off the bracket fixing the lower transport clutch and 1 bushing Fig 9 55 10 Take off the lower transport clutch and 1 bushing Fig 9 56 Fixing bracket Fixing bracket Bushing Connector Harness clamp Bushing Lower transport clutch ...

Page 236: ...he convex ity of the one way clutch and concavity of the gear Fig 9 57 12 Remove 4 screws and take off the transport drive unit Fig 9 58 1 Take off the ADU P 15 10 A Automatic Duplexing Unit ADU 2 Take off the bypass unit P 9 17 G Bypass unit 3 Release the latches and take off the side cover opening closing detection sensor Fig 9 59 Bushing Pin Gear Gear One way clutch Transport drive unit Side co...

Page 237: ...e bypass unit P 9 17 G Bypass unit 5 Take off the transfer unit P 11 17 O Transfer unit 6 Take off the SYS board case P 2 46 D SYS board case 7 Take off the connecting port cover P 2 37 O Connecting port cover 8 Take off the main motor drive unit P 10 5 B Main motor drive unit 9 Take off the registration roller clutch P 9 25 S Registration roller clutch 10 Remove 2 screws and take off the terminal...

Page 238: ...SYSTEM June 2004 TOSHIBA TEC 9 32 12 Remove 2 springs of both front and rear sides Fig 9 62 13 Remove 2 screws and take off the registra tion guide R Fig 9 63 14 Remove the clip of registration roller rub ber Fig 9 64 Spring Registration guide R Clip ...

Page 239: ... 33 15 Slide the registration roller rubber to the rear side Then remove the gear Fig 9 65 16 Pull out the registration roller rubber to the front side Fig 9 66 17 Remove the clip of registration roller metal Fig 9 67 Gear Registration roller rubber Registration roller rubber Clip ...

Page 240: ...e Then remove the gear Fig 9 68 19 Pull out the registration roller metal to the front side Fig 9 69 1 Take off the registration rollers rubber one and metal one P 9 31 W Registration roller 2 Disconnect 1 connector and remove 3 screws and take off the registration guide L Fig 9 70 Gear Registration roller metal Registration roller metal Registration guide L ...

Page 241: ...9 June 2004 TOSHIBA TEC e STUDIO200L 202L 230 232 280 282 PAPER FEEDING SYSTEM 9 35 3 Disconnect 1 connector and release the latches Then take off the registration sensor Fig 9 71 Registration sensor ...

Page 242: ...e STUDIO200L 202L 230 232 280 282 PAPER FEEDING SYSTEM June 2004 TOSHIBA TEC 9 36 ...

Page 243: ...unit fuser unit transport roller feed roller upper lower drawer and bypass unit and registration roller The drive system is driven by the rotation of the main motor Fig 10 1 G29 G10 G35 G31 G20 G23 G27 G61 G33 G67 G31 G17 P52 P25 G27 P32 G56 P27 G26 P39 A Drum coupling P54 E F Feed Transport A Toner auger coupling D Registration clutch G33 B Developer coupling C Fuser unit ...

Page 244: ...rs C Fuser unit drive Drives the fuser unit by transmitting the rotation of the main motor through the gears and timing belt to the fuser unit gears The bridge unit the job separator and the offset tray are driven by transmitting from the fuser unit D Registration roller drive Drives the registration rollers by transmitting the rotation of the main motor through the gears and clutches E Transport ...

Page 245: ...LGC board are compared in terms of the phase and speed and the difference is added to the IC1 The fluctuations in the power supply voltage is also added to the value Signal generation 7 In accordance with the signal obtained in the step 6 the excitation phase switching section changes the switching timing i e The FG pulse and reference frequency are controlled to be equal The main motor rotates at...

Page 246: ...tor is in a lock range normal rotation and this MAMPL signal becomes L level At this time the LED D4 is lit 3 MAMCK signal LGC MTR Input This is a reference clock signal to rotate the main motor at a fixed speed 4 MAMBK signal LGC MTR Input This is a signal to stop the main motor When it becomes L level the main motor is braked 5 MAMON signal LGC MTR Input This is a signal to turn ON OFF the main ...

Page 247: ...YS board case 2 Disconnect 1 connector Remove 2 screws release 2 locking support and then take off the main motor Fig 10 3 1 Take off the process unit P 11 8 A Process unit 2 Take off the SYS board case P 2 46 D SYS board case 3 Take off the connecting port cover P 2 37 O Connecting port cover 4 Remove 1 screw and take off the flywheels Fig 10 4 Screw Screw Connector Main motor Flywheel ...

Page 248: ...t fixing the registration clutch and bushing Fig 10 5 6 Disconnect 2 connectors remove 3 screws and then take off the main motor drive unit Fig 10 6 7 Loosen 1 fixing screw of the tensioner and remove the tension spring Fig 10 7 Bracket Bushing Connector Screw Screw Screw Drive unit Tension spring Fixing screw ...

Page 249: ... Fig 10 8 9 Take off the gear and timing belt from the main motor drive unit rear bracket Fig 10 9 Note When assembling the main motor drive unit assemble it while the fixing screw is loos ened Then hook the tension spring and tighten the fixing screw of the tensioner Fig 10 10 Bushing Pulley Pin Bushing Screw Screw Drive unit front bracket Timing belt Gear Gear 1 2 Tension spring Fixing screw ...

Page 250: ...L 202L 230 232 280 282 DRIVE SYSTEM June 2004 TOSHIBA TEC 10 8 C Toner motor 1 Take off the main motor drive unit P 10 5 B Main motor drive unit 2 Remove 1 screw and take off the toner motor Fig 10 11 Toner motor ...

Page 251: ...eaning blade Toner recovery blade Toner recovery auger Discharge LED Transfer Separation charger Transfer guide Transfer charger Separation charger Exhaust fan Drum thermistor P 12 1 12 DEVELOPMENT SYSTEM High voltage transformer Temperature humidity sensor Internal cooling fan Fig 11 1 Drum thermistor Separation charger Exhaust fan Recovery blade Transfer charger Main charger Discharge LED Cleani...

Page 252: ...lied to the needle electrode the air around it is charged ionized The ionized air then flows into the drum causing it to be charged This phenomenon is called corona dis charge At the same time a control bias is applied to the main charger grid to control the charging amount In a dark place negative charge is evenly applied onto the drum surface by the corona discharge and this grid In addition a c...

Page 253: ...ted by the corona discharge and this ozone is removed by the ozone filter The exhaust fan also helps the paper separation by absorbing the paper to post transfer guide 6 Discharge LED Discharging is a process to decrease or eliminate the electrical potential of the drum surface The electrical resistance of the photosensitive layer is decreased by the light irradiation and the residual charge on th...

Page 254: ...voltage of each bias according to the 24V voltage 24VD2 input Fig 11 3 HVT board IC31 IC22 IC24 IC52 HVMVR HVAVR HVDVR HVTVR HVSAV HVTM HVSDWN HVTAC HVCLK HVTT HVTSP HVTGB NVRAM Engine CPU LGC board ASIC D A converter Digital data Adjustment value 24VD2 24VD2 Analog data Reference voltage Vc Transfer guide bias Transfer bias Separation bias Developer bias Main charger bias Leakage detection Develo...

Page 255: ... grid developer bias AC DC transfer charger and separation charger Each output of the high voltage transformer can be linearly changed by switching these reference voltages The output operation of the reference voltage is as follows Outputs the adjustment values of the main charger transfer charger separation charger and devel oper bias in the NVRAM to ASIC Outputs the reference voltage data from ...

Page 256: ... on the result it controls the exhaust fan and internal cooling fan 1 to cool down the inside of the equipment 11 4 2 Construction The configuration of the drum surface temperature detection circuit is shown below The input voltage from the drum thermistor is converted by an A D converter in the Engine CPU on the LGC board The drum thermistor is a device whose resistance decreases as the temperatu...

Page 257: ...t corrects each out put of main charger bias developer bias transfer bias and separation bias output of the auto toner sensor and output of the laser 11 5 2 Construction The configuration of the temperature humidity detection circuit is shown below The analog signal volt age output from the temperature humidity sensor is converted by the A D converter in the Engine CPU on the LGC board The higher ...

Page 258: ...nit 1 Open the bypass tray ADU and transfer cover 2 Open the front cover and take off the toner cartridge 3 Disconnect 1 connector Loosen 2 screws and pull out the process unit Note When installing the process unit make sure that the connector harness is not caught under the developer unit Fig 11 6 Process unit Connector 04 09 ...

Page 259: ...nnectors and remove 2 screws 3 Release 1 latch Then pull out the process unit front cover and take it off Note When installing the process unit front cover wire the harness correctly in order not to con tact the gears and harness of the process unit front cover each other Fig 11 7 Fig 11 8 Process unit front cover Connector Connector Latch Process unit front cover Harness ...

Page 260: ...t to touch or scratch the drum surface at this time 2 Do not deform the Guide Mylar by touch ing this Fig 11 9 Fig 11 10 1 Take off the drum cleaner unit P 11 9 B Drum cleaner unit 2 Release 1 latch and take off the discharge LED unit Note Be careful not to touch or scratch the drum surface at this time Fig 11 11 Drum cleaner unit Guide mylar Discharge LED unit Latch ...

Page 261: ...ff the discharge LED unit P 11 10 C Discharge LED 2 Pull out the main charger and take it off by sliding it to the rear side Note Be careful not to touch or scratch the drum surface at this time Fig 11 13 1 Take off the main charger P 11 11 D Main charger 2 Remove the spring and take off the main charger grid Note Do not touch the mesh area of the grid Fig 11 14 Discharge LED Main charger Main cha...

Page 262: ...ff Fig 11 15 1 Take off the main charger grid and main charger cleaner P 11 11 E Main charger grid P 11 12 F Main charger cleaner 2 Take off the terminal covers of both front and rear sides Fig 11 16 3 Remove the terminal and spring Then take off the needle electrode Notes 1 Do not touch the needle electrode directly with bare hands 2 Make sure not to hold or bend the needle electrode Fig 11 17 Ma...

Page 263: ...he drum Notes 1 Be careful not to touch spit or scratch the drum surface 2 Avoid direct light Place the drum in a dark place immediately after taking off 3 Be careful not to touch or scratch the edge of the cleaning blade Fig 11 18 1 Take off the drum P 11 13 H Drum 2 Remove 2 screws and take off the drum cleaning blade Note Be careful not to touch or scratch the edge of the drum cleaning blade Fi...

Page 264: ...ngers may scratch the drum surface 2 In e STUDIO202L 232 232S 282 282S 2 drum separation finger units are installed Fig 11 20 3 Remove the spring and take off the drum separation fingers Note When the drum separation fingers have been replaced check if the pressure movement is normal by moving them with your hands Fig 11 21 1 Take off 3 drum separation finger units P 11 14 J Drum separation finger...

Page 265: ...pen the bypass tray and ADU Fig 11 23 2 Remove 1 screw and take off the ozone filter cover 3 Take off the ozone filter Fig 11 24 1 Open the bypass tray ADU and transfer cover 2 Release the latch and take off the transfer and separation chargers Fig 11 25 Bypass tray ADU Ozone filter Ozone filter cover Transfer Separation charger 04 09 ...

Page 266: ... side 4 Release 1 latch and take off the terminal cover on the rear side Fig 11 27 5 Remove the terminal and spring Then take off the transfer charger wire 6 Remove the cushioning material disconnect the terminal and remove the spring Then take off the separation charger wire Notes 1 Insert the wire securely into the V grooves of the front and rear sides 2 Do not twist the wire 3 Do not touch the ...

Page 267: ...e cover P 2 39 R Bypass upper cover If the ADU is installed take off the ADU P 15 10 A Automatic Duplexing Unit ADU 2 Take off the bypass unit P 9 17 G Bypass unit 3 Release 1 latch and take off the transport guide Fig 11 29 4 Open the transfer unit and disconnect 5 con nectors Note When installing the unit do not connect the connectors in the wrong places Fig 11 30 5 Slide the transfer unit to th...

Page 268: ...nd lift it up to take off Fig 11 32 4 Disconnect 1 connector release the latch and then take off the 1st transport sensor Fig 11 33 1 Take off the ozone filter P 11 15 L Ozone filter 2 Take off the transfer separation charger P 11 15 M Transfer Separation charger 3 Take off the transfer unit P 11 17 O Transfer unit 4 Take off the guide P 11 18 P 1st transport sensor 5 Remove the plate spring Fig 1...

Page 269: ...ED SECTION 11 19 6 Remove 2 springs and 5 screws 7 Take off the case while pulling the opening closing lever Fig 11 35 8 Remove 2 screws and take off the duct Fig 11 36 9 Remove the two sided tape and take off the exhaust fan Fig 11 37 Case Spring Duct Exhaust fan 05 07 ...

Page 270: ...ake off the inner tray P 2 35 K Inner tray 2 Lift the duct and disconnect 1 connector Fig 11 38 3 Disconnect 1 connector remove 1 screw and take off the temperature humidity sensor cover Fig 11 39 4 Remove 1 screw and take off the tempera ture humidity sensor Fig 11 40 Duct Connector Screw Temperature humidity sensor ...

Page 271: ...velopment system consists of the following unit components and control circuits Toner cartridge drive unit Toner cartridge installation switch Temperature humidity sensor P 11 1 11 DRUM RELATED SECTION Developer unit Developer material Mixers 1 2 and 3 Developer sleeve magnetic roller Doctor blade Auto toner sensor Drum thermistor P 11 1 11 DRUM RELATED SECTION Recovered toner supply mechanism pad...

Page 272: ...fficient time Developer sleeve Magnetic roller This is an aluminum roller with a magnet inside The magnet works to absorb the developer material and forms the magnetic brush The magnet is fixed and only the sleeve around is rotated This rotation makes the magnetic brush of the developer sleeve sweep over the drum surface and perform development Doctor blade Doctor blade controls the amount of the ...

Page 273: ...th developer material by the mixer 3 The mixer 3 is mounted exclusively for the recovered toner to mix it with sufficient time On the other hand the toner fresh transported into the developer unit from the toner cartridge is mixed by the mixer 2 Then the toner fresh and recovered toner are mixed together and further transported to the mixer 1 They are further mixed and transported to the developer...

Page 274: ...g 12 3 The motor rotates or stops by the control signals from ASIC When the PC1 TNRM 1A of the ASIC becomes H and PC0 TNRM 0A becomes L levels cur rent flows into the motor coil and the motor is rotated When both of PC1 TNRM 1A and PC0 TNRM 0A of the ASIC become H level the motor is braked and stopped When both of PC1 TNRM 1A and PC0 TNRM 0A of ASIC become L level the motor waits for the next comm...

Page 275: ...e block diagram of TA8428 and the operation of the control logic are shown below Fig 12 4 Input Output State IN1 IN2 M M H H L L Brake L H L H CCW H L H L CW L L OFF High impedance Stop 1 2 3 4 5 6 7 IN1 IN2 M GND M N C VCC Thermal shutdown over current protection circuit Control logic ...

Page 276: ...ection Controls the toner density so that the toner in the developer material is fixed to certain ratio Toner motor Supplies toner to the developer material LCD panel Indicates toner empty information Fig 12 5 NVRAM IC31 ASIC IC24 Motor driver TA8428 IC1 Temperature humidity sensor LGC board Developer unit Toner density signal Control voltage signal Auto toner sensor Toner Toner cartridge Toner mo...

Page 277: ...tains the toner density to a certain ratio as follows Toner is consumed The toner density is lowered Change in the auto toner sensor output responding to humidity is detected The toner motor is driven Toner is supplied from the toner cartridge to the developer unit Toner empty detection and recovery Detects that there is no toner in the toner cartridge The toner motor is driven The auto toner sens...

Page 278: ...requency output from the detection winding into a DC signal auto toner output VATS Fig 12 6 When the toner density is low The ratio of the toner against the carrier in the developer material decreases The magnetic resistance decreases The detection output increases The auto toner output VATS increases When the toner density is high The ratio of the toner against the carrier in the developer materi...

Page 279: ...e process unit before the developer material is replaced 1 Open the bypass tray ADU and transfer cover 2 Open the front cover and take off the toner cartridge 3 Disconnect 1 connector Loosen 2 screws and pull out the process unit Note When installing the process unit make sure that the connector harness is not caught under the developer unit Fig 12 7 Process unit Connector 04 09 ...

Page 280: ... the developer unit will be left in it P 11 9 B Drum cleaner unit Notes 1 Be careful not to touch or scratch the drum surface at this time 2 Do not deform the Guide Mylar by touch ing this Fig 12 8 Fig 12 9 1 Take out the developer unit P 12 10 B Developer unit 2 Remove 2 screws and slide the developer unit upper cover to the direction of the arrow and take it off Fig 12 10 Drum cleaner unit Devel...

Page 281: ...ve the developer material from rear side Note When removing the developer material be careful not to drop the developer material on the gears of the developer unit Fig 12 12 1 Install the developer nozzle jig on the devel oper bottle 2 Rotate the gear on the rear side of the devel oper unit to the direction of the arrow while filling the developer unit with the developer material Spread out the de...

Page 282: ... connect 1 connector remove 1 screw and then take off the auto toner sensor Fig 12 14 1 Remove the developer material P 12 10 C Removing developer mate rial 2 Disconnect 1 connector remove 1 screw and take off the drum thermistor Fig 12 15 1 Remove the developer material P 12 10 C Removing developer mate rial 2 Remove 2 screws and take off the recovered toner supply unit Fig 12 16 Connector Auto t...

Page 283: ...ngs fixing the doctor sleeve on its both ends Fig 12 18 5 Remove 2 screws on both ends of the doctor sleeve and remove 2 coil springs Note When the screws on both ends of the doctor sleeve are removed be sure to adjust the doctor sleeve gap 0 45 0 05 mm after assembling Refer to Service Handbook Chap 3 9 Fig 12 19 Gear Recovered toner drive unit Connector Plate spring Plate spring Screw Screw Coil...

Page 284: ...sition where the polar ity adjustment lever is pointing Mark the position if needed When reassembling match the polarity adjustment lever with the previously marked position on the scale Fig 12 20 8 Remove 2 screws and take off the bracket Fig 12 21 9 Remove 1 E ring and take off the guide roller on the front side Fig 12 22 Plate spring Polarity adjustment lever Connector Bracket E ring Guide roll...

Page 285: ... 202L 230 232 280 282 DEVELOPMENT SYSTEM 12 15 10 Remove 1 E ring Remove the arm and cam Fig 12 23 11 Remove 1 screw and the gear Fig 12 24 12 Remove 2 screws Take off 1 bearing and the bracket Fig 12 25 E ring Arm Cam Gear Bearing Bracket ...

Page 286: ...ake off 3 gears and 1 timing belt Fig 12 26 14 Remove 1 E ring 1 pin and 1 pulley 15 Take off the guide roller on the rear side Fig 12 27 16 Remove the seal on the front side Remove 1 E ring and 1 bushing Fig 12 28 Timing belt Gear Gear Pulley Guide roller E ring Pin Seal E ring Bushing ...

Page 287: ...f the developer sleeve Fig 12 29 1 Take off the developer sleeve P 12 12 G Guide roller Developer sleeve 2 Take off the doctor sleeve Fig 12 30 3 Remove 1 screw and take off the tensioner bracket 4 Remove 2 screws and take off the holder Fig 12 31 Developer sleeve Doctor sleeve Holder Tensioner bracket ...

Page 288: ...2 oil seals from the holder Replacement of Oil Seal P 12 20 I Replacement of Oil Seal Fig 12 32 6 Take off the mixers 2 and 3 Fig 12 33 7 Remove 2 bushings and 2 oil seals on the rear side Replacement of Oil Seal P 12 20 I Replacement of Oil Seal Fig 12 34 Oil seal Bushing Mixer 3 Mixer 2 Oil seal Bushing ...

Page 289: ...Remove the bushing and oil seal Replacement of Oil Seal P 12 20 I Replacement of Oil Seal Fig 12 35 10 Take off the mixer 1 Fig 12 36 11 Remove the bushing on the rear side 12 Remove the oil seal Replacement of Oil Seal P 12 20 I Replacement of Oil Seal Fig 12 37 Oil seal Bushing End section of mixer 1 Mixer 1 Oil seal Bushing ...

Page 290: ...fine screwdriver into the depression of the oil seal to take it out 2 Push in a new oil seal parallel to the frame or bushing shown figure at right 3 Apply the grease Alvania No 2 amount of 2 rice grains on entire surface of the oil seal evenly Note Wipe off the excessive grease Fig 12 38 Outside Inside Oil seal Grease ...

Page 291: ...on the trans ported paper The paper is then transported to the paper exit section after completion of fusing The fuser unit consists of the heater lamps fuser roller pressure roller separation fingers cleaning roller thermistors thermostat etc Fig 13 1 Pressure roller Cleaning roller Separation finger Fuser roller Center heater lamp Thermostat Thermistor Paper exit section Side heater lamp Fuser u...

Page 292: ...aper from the fuser roller or pressure roller Then the paper is transported to the inner tray paper exiting options or ADU through the exit roller In addition the heater lamps in the fuser roller does not structurally rotate 2 heater lamps having different functions each other are installed one applies heat to the center part of the fuser roller and the other one applies heat to both ends of the r...

Page 293: ...ge roller which assures the nip amount of the fuser roller The pressure from the spring presses the paper onto the fuser roller to fuse the toner onto the paper efficiently A sponge roller with a lower hardness is adopted for the pressure roller in this fuser unit to enable envelopes to pass through 4 Separation fingers The separation fingers are installed five above the pressure roller and six ab...

Page 294: ... center part of the fuser roller and the side ther mistor detects the temperature of one side of fuser roller and control the both sides 7 Edge thermistor It detects the temperature abnormality at the both ends of the fuser roller This area may be over heated without heat absorption by paper since paper does not pass through this area This ther mistor is not related to the temperature control of t...

Page 295: ...erature the temperature control circuit transmits an overheat detection signal to the engine CPU and turns the heater lamp OFF If the temperature control circuit does not function for some reason and the fuser roller is abnormally overheated as the result a forcible power OFF circuit transmits a reset signal to the power switch to turn the power OFF forcibly In addition if these control circuits d...

Page 296: ... alternately to maintain the surface temperature of the fuser roller at a certain level setting tem perature of each status 3 Temperature control for the both ends of the fuser roller During continuous printing the temperature of the end of the fuser roller area where the paper does not pass on generally tends to be higher than that of other areas areas where the paper passes on For this reason th...

Page 297: ...rinting is not performed in a specified period of time default setting 15 min after the previous printing is completed the equipment enters to Auto Power Save Mode to turn OFF the heater lamp Auto Shut Off Mode Setting Mode 08 206 When the printing is not performed in a specified period of time default setting 60 min e STUDIO230 232 280 282 series 1 30 min e STUDIO200L 202L series after the equipm...

Page 298: ...Reset the counter to 0 after repair ing them then turn ON the power If the fuser unit error status counter is 10 or over e g 21 the data in NVRAM or NVRAM itself may possibly have been ruined due to causes such as leakage from the chargers Check the bias high voltage transformers and charge wires to see if any of them is defective and also look through all the data in the NVRAM When the thermistor...

Page 299: ...eeps turning the heater lamp ON As a result the fuser roller temperature rises and possibly activates the thermostat which is a safety protection device To prevent this in advance engine CPU works to detect whether each thermistor is broken or not Also the thermistors constantly check the temperature of heater lamp to prevent it from excessive heating by LGC circuit abnormality or thermistor abnor...

Page 300: ...C410 40 C or below Detecting 100 C 1 230 C or above On usual C440 230 C or above 2 40 C or below 150 C or above C430 150 C or above 40 C or below 3 100 C or below Specified time C440 100 C or below Detecting ready temperature 1 230 C or above On usual C440 230 C or above 2 40 C or below 150 C or above C430 150 C or above 40 C or below 150 C or above 40 C or below 3 Ready temp or below Specified ti...

Page 301: ...ke off the right rear cover P 2 37 N Right rear cover 2 Disconnect 2 connectors remove 2 screws and then take off the fuser unit Notes 1 Be careful when handling the fuser unit as it may become very hot 2 Be careful not to hold the center part shaded part in the figure at right Fig 13 7 Fig 13 8 Fuser unit Connector Connector ...

Page 302: ...f the fuser unit P 13 11 A Fuser unit 2 Release the harness from the harness clamp Remove 4 screws and take off the fuser unit upper cover Fig 13 9 1 Take off the fuser unit upper cover P 13 12 B Fuser unit upper cover 2 Remove 6 springs and take off 6 separation fingers Fig 13 10 Fuser unit upper cover Separation finger Spring ...

Page 303: ... cover P 13 12 B Fuser unit upper cover 2 Remove 2 springs Note When installing the spring catch the spring on the lower hook Fig 13 11 3 Remove 4 screws and take off the separation finger bracket Fig 13 12 4 Remove 2 screws of each the center heater lamp and the side heater lamp Fig 13 13 Spring Separation finger bracket ...

Page 304: ... not touch the lamps directly with bare hands 4 Distinguish the harnesses by their termi nals The M3 one is for the center heater lamp and the M4 one is for the side heater lamp Fig 13 15 1 Take off the center heater lamp and side heater lamp P 13 13 D Heater lamp 2 Take out the fuser roller upward Notes 1 When installing the fuser roller move the bearings on both ends outward so that the bearings...

Page 305: ...er roller P 13 14 E Fuser roller 2 Place the fuser unit with the pressure roller on its bottom Remove 2 screws and take off the fuser unit entrance guide Fig 13 18 3 Take off the pressure roller Remove 2 E rings and the bearings on both ends of the pressure roller Note The pressure roller is quite heavy Do not drop the roller when lifting up Fig 13 19 C ring C ring Bearing Bearing Gear Fuser unit ...

Page 306: ... the pressure roller P 13 14 E Fuser roller 2 Remove 2 screws and take off the cleaning unit Fig 13 20 3 Press down the holder and take off the cleaning roller Fig 13 21 1 Place the fuser unit upside down 2 Release the latch and take off the harness cover Fig 13 22 Cleaning unit Cleaning roller Holder Harness cover ...

Page 307: ...length of the harness first and distinguish the installation positions of the side thermistor and edge thermistor by the length of each harness Fig 13 23 Fig 13 24 1 Take off the pressure roller P 13 15 F Pressure roller 2 Place the fuser unit upside down Release the latch and take off the harness cover Fig 13 25 Thermistor Center thermistor Side thermistor Edge thermistor Harness cover ...

Page 308: ...off the fuser unit lower cover Fig 13 26 4 Take off 2 thermostats by removing 2 screws each Fig 13 27 Note The gap between the fuser roller and ther mostat is adjusted to be 2 3 0 2 mm with the screw in the figure at right Therefore make sure not to loosen 4 screws shown in the fig ure at right Fig 13 28 Fuser unit lower cover Stepped screw Thermostat ...

Page 309: ...sheet of paper with the toner fused on is transported to the inner tray paper exit options or Automatic Duplexing Unit ADU The paper exit section consists of the guide and roller to transport the paper motor to drive this roller and sensor to detect the transporting status of the paper Fig 14 1 Exit roller Exit gate Exit sensor Paper exit section Fuser unit ...

Page 310: ...The exit motor is a stepping motor which drives the exit roller This motor rotates reversely to switch back the exit roller when the paper is transported to the ADU In this equipment the transport speed in the ADU is about three times as fast as that of print pro cessing to enhance the productivity of duplex printing For that purpose the transport speed starts increasing when the trailing edge of ...

Page 311: ...motor is turned ON OFF and the direction of its rotation is switched by controlling the output timing of pulse signal A0 A1 B0 B1 VREF is the reference voltage for the current control of the motor Fig 14 2 PG10 PG12 PG11 PG13 Engine CPU DICH1 LDCH1 CLKCH1 ASIC DI LD CK IC22 IC24 IC52 IC50 D A converter EXTMA EXTMB EXTMC Exit Motor EXTMD EXTMA 0 EXTMC 0 EXTMB 0 EXTMD 0 STK672 A AB B BB A0 B0 A1 B1 ...

Page 312: ...02L 230 232 280 282 PAPER EXIT SECTION June 2004 TOSHIBA TEC 14 4 14 4 Exit Motor Drive The diagram shown below is the layout of the driving gears of the exit roller Fig 14 3 G20 20 40 G16 Exit motor Exit roller φ15 ...

Page 313: ...it cover B Paper exit unit 1 Open the exit cover 2 Remove 1 clip and take off the exit cover Fig 14 4 1 Take off the right rear cover P 2 37 N Right rear cover 2 Take off the exit cover P 14 5 A Exit cover 3 Remove 2 connectors remove 3 screws and then take off the paper exit unit Fig 14 5 Exit cover Clip Paper exit unit ...

Page 314: ...2 harness clamps 3 Remove 3 screws and take off the paper exit drive unit Fig 14 6 4 Remove 3 gears and take off the timing belt And then slide the exit motor to the hole and take it off Fig 14 7 1 Take off the paper exit unit P 14 5 B Paper exit unit 2 Disconnect 1 connector and take off the exit sensor Fig 14 8 Harness clamp Drive unit Harness clamp Exit motor Gear Gear Gear Timing belt Exit sen...

Page 315: ...er exit unit P 14 5 B Paper exit unit 2 Remove 2 springs Fig 14 9 3 Remove the plate spring Fig 14 10 4 Remove 1 E ring and 1 bearing on the front side Remove 1 E ring 1 gear and 1 bearing on the rear side 5 Take off the exit roller Fig 14 11 Spring Spring Plate spring Bearing Bearing Exit roller Gear E ring E ring ...

Page 316: ...e STUDIO200L 202L 230 232 280 282 PAPER EXIT SECTION June 2004 TOSHIBA TEC 14 8 ...

Page 317: ... process is completed the paper is switchbacked by the exit roller The paper being reversed is then transported to the 1st transport roller for the printing of the other side In this ADU the transport of the switchbacked paper again accelerates and this speed is maintained to enhance the productivity of duplex printing The ADU mainly consists of the transport rollers and their drive system paper g...

Page 318: ... complete duplex printing There are three methods of judging a paper jam 1 whether the ADU entrance sensor is turned ON or not in a specified period of time after the switchback to the ADU started E510 2 whether the ADU exit sensor is turned ON or not in a specified period of time after the ADU entrance sensor is turned ON E520 3 whether the registration sensor is turned ON or not in a specified p...

Page 319: ...ING UNIT ADU OPTION MD 0102 15 3 1 Single paper circulation With the paper larger than A4 LT size duplex printing back side printing front side printing is performed for one sheet at a time as shown below Fig 15 2 1 2 3 4 5 6 7 8 9 2 2 2 4 4 4 4 1 2 2 1 1 2 1 2 1 2 1 4 3 2 1 3 ...

Page 320: ...Double paper alternateness circulation With A4 LT size paper or smaller duplex printing is performed for two sheets at a time as shown below Back side of the 1st sheet Back side of the 2nd sheet Front side of the 1st sheet Front side of the 2nd sheet Fig 15 3 1 2 3 4 5 6 7 8 2 2 2 2 4 4 4 4 2 2 1 2 1 4 3 3 1 ...

Page 321: ...ort clutch 1st transport sensor ADU motor Registration sensor ADU clutch Unit Sec 3 924 3 932 2 002 0 508 0 438 0 0 21 1 954 3 54 4 48 9 584 14 347 16 968 4 966 6 826 9 73 11 534 14 49 17 11 1 812 2 164 4 968 6 608 9 732 11 369 14 492 17 112 2 302 5 21 7 058 9 97 11 806 14 734 17 35 2 624 5 268 7 388 10 032 12 152 14 796 17 404 4 114 6 754 8 882 11 514 13 638 16 278 18 894 4 246 6 041 9 525 10 816...

Page 322: ... upper drawer A3 1 sheet Fig 15 5 ADU entrance sensor ADU clutch ADU exit sensor Exit sensor Registration roller clutch Registration clutch Upper transport clutch 1st transport sensor ADU motor 6 94 6 529 8 06 5 0 3 77 3 66 3 24 0 511 9 77 9 63 9 23 5 55 5 55 5 83 2 0 0 547 0 470 0 0 233 6 52 6 63 6 24 6 23 5 14 6 54 6 48 11 22 8 0 Unit Sec ...

Page 323: ...tor rotates in the direction A the upper transport roller is rotated with the drive of the gears and belt and thus the paper is transported When the ADU clutch is turned ON the middle trans port roller and lower transport roller are rotated Fig 15 6 ADU motor ADU clutch Upper transport roller Middle transport roller Lower transport roller A ...

Page 324: ...utch ON No No Yes No ADU transport jam E510 ADU entrance sensor ON ADU motor ON Specified time has passed Specified time has passed Exit motor reverse rotation ON Specified time has passed Paper is transported to the first stopping position in ADU Trailing edge of first paper turned ON the ADU exit sensor ADU exit sensor check the arrival ADU motor stopped ADU motor ON ...

Page 325: ... 8 Yes Yes ADU misfeeding E110 Registration process completed ADU motor stopped ADU clutch OFF No No ADU paper feeding command signal received ADU feeding operation started Next paper is ready for the registration Registration sensor ON Registration in process ADU motor clutch ON ADU motor stopped ADU clutch OFF A ...

Page 326: ...cement A Automatic Duplexing Unit ADU 1 Pull out the upper and lower drawers 2 Remove 2 screws and take off the right front hinge cover Fig 15 9 3 Remove 2 screws and take off the right rear hinge cover Fig 15 10 4 Disconnect 2 connectors Remove 1 screw and 1 ground wire Fig 15 11 Right front hinge cover Right rear hinge cover 04 09 ...

Page 327: ...downward Open the ADU and take it off by sliding it to the rear side Fig 15 12 1 Take off the ADU P 15 10 A Automatic Duplexing Unit ADU 2 Remove 2 screws and take off the ADU inside rear cover Fig 15 13 1 Take off the ADU inside rear cover P 15 11 B ADU inside rear cover 2 Disconnect 1 connector Release the latches and take off the ADU opening closing switch Fig 15 14 ADU Pin ADU inside rear cove...

Page 328: ... the ADU inside rear cover P 15 11 B ADU inside rear cover 2 Disconnect 6 connectors from the ADU board Release the latch and take off the ADU board Fig 15 15 1 Take off the ADU inside rear cover P 15 11 B ADU inside rear cover 2 Disconnect 3 connectors from the ADU board Fig 15 16 3 Remove 4 screws and take off the ADU cover Fig 15 17 Latch ADU board ADU cover ...

Page 329: ... cover 2 Remove 1 E ring and disconnect 1 connec tor Then take off the ADU clutch Note When installing the E ring make sure that the latches of both ends of E ring are on the flat part of the shaft Fig 15 18 1 Take off the ADU clutch P 15 13 F ADU clutch 2 Remove the spring Fig 15 19 3 Remove 1 screw and take off the ADU rear latch Fig 15 20 ADU clutch Shaft E ring Spring ADU rear latch ...

Page 330: ...TOSHIBA TEC 15 14 4 Remove 2 screws and take off the ADU drive unit Fig 15 21 5 Remove 2 screw and take off the ADU motor Fig 15 22 6 Take off the timing belt Remove E ring Then take off the gears from the ADU drive unit Fig 15 23 ADU drive unit ADU motor Gear Gear Gear Timing belt E ring ...

Page 331: ... roller 1 Take off the ADU drive unit P 15 13 G ADU motor ADU drive unit Fig 15 24 2 Remove 1 clip on the rear side Then remove 1 pulley and 1 pin Fig 15 25 3 Remove 1 clip on the front side Then take off 2 bushings and upper transport roller Fig 15 26 ADU drive unit Clip Pulley Pin Upper transport roller Bushing Bushing Clip ...

Page 332: ...ive unit P 15 13 G ADU motor ADU drive unit Fig 15 27 2 Remove 2 clips 2 pulleys and 2 pins on the front side Then take off the timing belt Fig 15 28 3 Remove 1 E ring and 1 clip on the rear side 4 Take off 2 bushings and middle transport roller Fig 15 29 ADU drive unit Pin Pin Timing belt Pulley Clip Middle transport roller Clip Bushing Bushing E ring ...

Page 333: ...cover P 15 12 E ADU cover 2 Remove 2 screws and take off the exit guide Fig 15 30 3 Remove 2 clips 2 pulleys and 2 pins on the front side Then take off the timing belt Fig 15 31 4 Remove 1 clip on the rear side Take off 2 bushings and lower transport roller Fig 15 32 Exit guide Pin Pin Timing belt Pulley Clip Bushing Bushing Clip Lower transport roller ...

Page 334: ...or 1 Take off the ADU cover P 15 12 E ADU cover 2 Disconnect 1 connector Release the latches and take off the ADU entrance sensor Fig 15 33 1 Take off the ADU cover P 15 12 E ADU cover 2 Take off the sheet Fig 15 34 3 Disconnect 1 connector Release the latches and take off the ADU exit sensor Fig 15 35 ADU entrance sensor Sheet ADU exit sensor ...

Page 335: ...age 3 3V 5 1V 12V 12V and 24V are output when the main switch of the equipment is turned ON b Door switch line Power supply used in the entire equipment during image forming process being supplied via the door switch Two kinds of voltage 5 1VD and 24VD are out put only when the main switch of the equipment is turned ON and two doors front cover and transfer guide are closed 3 Heater lamp control c...

Page 336: ...e does it may cause the damage of the electron device on each control circuit To prevent this the supply of these voltages stops after the PWR DN signal is output and the minimum retaining time 3 3VA 5 1VA 50 ms or more 12VA 12VA 5 ms or more elapses 3 Output protection Each output system includes an overcurrent and overvoltage protection circuits a fuse and internal protection circuit This is to ...

Page 337: ...the SYS board 5 1VB CN705 Pin 25 Output to the SYS board 5 1VB CN706 Pin 26 Output to the FUS board 5 1VB CN706 Pins 27 and 28 Output to the LGC board PFP LCF via LGC board Bridge unit Job separator Offset tray via LGC board 5 1VB CN707 Pin 4 Output to the finisher 5 1VB CN708 Pins 3 and 4 Output to the SLG board 5 1VB CN708 Pins 5 and 6 Output to the RADF 3 12V 12VA CN705 Pin 7 Output to the SYS ...

Page 338: ...Output to the RADF 24VD4 CN708 Pins 19 and 20 Output to the SLG board 24VD5 CN707 Pin 8 Output to the finisher Output connector Not linked with the door switch Linked with the door switch Connector Destination Voltage CN705 For the SYS board 3 3VA 3 3VB 5 1VA 5 1VB 12VA 12VB 12VA 12VB CN706 For the LGC board FUS board PFP LCF via LGC board Bridge unit Job separator Offset tray via LGC board 3 3VB ...

Page 339: ...ernal cooling fan 2 Auto toner sensor Upper drawer feed clutch Lower drawer feed clutch Registration roller clutch Upper transport clutch Middle transport clutch Lower transport clutch Discharge LED Main switch PFP LCF 24VD2 LGC Exit motor F5 5A Semi time lag ADU motor Exhaust fan Bypass feed clutch ADU clutch Bypass pickup solenoid High voltage transformer Key copy counter Copy key card Bridge un...

Page 340: ... via LGC board Bridge unit Job separator Offset tray via LGC board 5 1VD CN706 LGC board PFP LCF via LGC board 24VD1 24VD2 CN706 CN706 Main motor 24VD1 CN707 24VD2 CN707 SYS board FUS board PFP LCF via LGC board Bridge unit Job separator Offset tray via LGC board CN705 CN705 CN706 Regulator Regulator F4 RADF 24VD3 CN708 F6 SLG board 24VD4 CN708 F7 F2 F1 Finisher 24VD5 CN707 HTR1ON CN706 HTR2ON CN7...

Page 341: ... to 20ms 0ms to 20ms 50ms to 120ms 3 2V or higher 4 95V or higher Lower limit of each rated voltage or higher 4 95V R V 5 1V 11 4V R V 12V 11 4V R V 12V 21 6V R V 24V 20ms or higher 4 95V or higher 3 2V or higher 10ms or higher 5ms or higher 10ms or lower 20ms or higher PWR DN 12VA 12VA PWR EN Linked with main switch 3 3VA Linked with main switch 5 1VA Linked with main switch 3 3VB Linked with mai...

Page 342: ...DRM DH THERMO FSR F THERMO FSR C FUSER PS ACC MAIN SW MAIN SWITCH INLET AC IN MAIN GND FG COV INTLCK SW OTHER MODELS STANDARD NAD MJD MODELS OPTION 2 1 1 2 AC SW OUT N GND AC SW OUT L AC DOOR N AC DOOR L AC SW OUT L AC SW OUT N AC MAIN N AC MAIN L 5V DC DC AC ADAPTER DRM DH TRC1 TRC2 AC DC AC DC B A C D 26 25 4 1 1 3 4 6 3 2 1 3 3 2 1 3 2 1 C A B AC SW IN L AC SW IN N 2 5 3 1 4 1 3 3 2 1 1 4 5 6 3...

Page 343: ...17 June 2004 TOSHIBA TEC e STUDIO200L 202L 230 232 280 282 PC BOARDS 17 1 17 PC BOARDS 1 PWA F SYS e STUDIO200L 230 230L 280 280S 05 11 ...

Page 344: ...e STUDIO200L 202L 230 232 280 282 PC BOARDS June 2004 TOSHIBA TEC 17 2 e STUDIO202L 232 232S 282 282S 05 11 ...

Page 345: ...17 June 2004 TOSHIBA TEC e STUDIO200L 202L 230 232 280 282 PC BOARDS 17 3 2 PWA F LGC e STUDIO200L 230 230L 280 280S e STUDIO202L 232 232S 282 282S 05 11 ...

Page 346: ...e STUDIO200L 202L 230 232 280 282 PC BOARDS June 2004 TOSHIBA TEC 17 4 3 PWA F SLG e STUDIO200L 230 230L 280 280S e STUDIO202L 232 232S 282 282S 05 11 ...

Page 347: ...17 June 2004 TOSHIBA TEC e STUDIO200L 202L 230 232 280 282 PC BOARDS 17 5 4 PWA F CCD e STUDIO200L 230 230L 280 280S e STUDIO202L 232 232S 282 282S 5 PWA F LRL 6 PWA F LDR 05 11 ...

Page 348: ...WA F ADU e STUDIO200L 230 280 series e STUDIO230 280 NAD AUD MJD IRD CND models Standard e STUDIO200L NAD ASD e STUDIO230 280 ASD ASU SAD TWD e STUDIO230L MJD e STUDIO280S CND models Option e STUDIO202L 232 282 series e STUDIO232 282 NAD MJD AUD models Standard Other models Option 05 11 ...

Page 349: ...17 June 2004 TOSHIBA TEC e STUDIO200L 202L 230 232 280 282 PC BOARDS 17 7 9 PWA F DSP e STUDIO200L 230 230L 280 280S e STUDIO202L 232 232S 282 282S 05 11 ...

Page 350: ...e STUDIO200L 202L 230 232 280 282 PC BOARDS June 2004 TOSHIBA TEC 17 8 10 PWA F KEY e STUDIO200L 230 230L 280 280S e STUDIO202L 232 232S 282 282S 05 11 ...

Page 351: ...FUS ASD AUD SAD ASU TWD CND IRD ARD KRD models Standard NAD MJD models Option 12 PWA F NIC e STUDIO200L 230 230L 280 280S only e STUDIO230 280 NAD AUD MJD IRD CND TWD models Standard e STUDIO200L NAD ASD e STUDIO230 280 ASD ASU SAD e STUDIO230L MJD e STUDIO280S CND models Option 05 11 ...

Page 352: ...e STUDIO200L 202L 230 232 280 282 PC BOARDS June 2004 TOSHIBA TEC 17 10 ...

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