Toshiba 4560 Service Manual Download Page 51

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Nov. 1997 © TOSHIBA

5 - 7

4560/4570 DISPLAY

5.4

Description of Operation

5.4.1

Dot matrix LCD display circuit

(1) Structure

Fig. 4.1-1

The liquid crystal module comprises an STN black-and-white mode transparent liquid crystal that

has a 320 x 240 dots display area, driver LSI, frame, printed circuit board and side-type CFL backlight.

*STN:Super Twisted Nematic

(2) Block diagram

Fig. 4.1-2

IC1

IC2

D0
D1
D2
D3

FRAME

LOAD

VDD

VSS

VEE

D.OFF

160

IC3

IC4

120

LCD PANEL
320 x 240 DOTS

Transparent SW

power

supply

Summary of Contents for 4560

Page 1: ...the Contents and display bookmarks created for the document Click a bookmark s name to go to the Page marked by that bookmark Click the Thumbnails and Page button to open the overview area and display thumbnail images of each document page Click a thumbnail to go to the page marked by that thumbnail Copyright TOSHIBA CORPORATION 1995 ALL RIGHTS RESERVED ...

Page 2: ... ventilation as the copier emits a slight amount of ozone To insure adequate working space for the copying operation keep a minimum clearance of 80 cm 32 on the left 80 cm 32 on the right and 10 cm 4 in the rear After having installed the copier be sure to push the carrying handles into the copier and fasten them with screws 3 Service of Machines Basically be sure to turn the main switch off and u...

Page 3: ...ls it is recommended to follow the relevant local regulations or rules 7 When parts are disassembled reassembly is basically the reverse of disassembly unless other wise noted in this manual or other related documents Be careful not to reassemble small parts such as screws washers pins E rings toothed washers in the wrong places 8 Basically the machine should not be operated with any parts removed...

Page 4: ...cial _ _ OHP film Toshiba recommended paper etc Copy process Indirect electrophotographic process dry Type Desk top console when the pedestal is used Exposure Type Slit exposure with fixed table Acceptable originals Kind Sheets books and 3 dimensional objects When the document feeder is used Sheet originals only 60 g m2 90 g m2 16 lb 24 lb Maximum size A3 Ledger 1 SPECIFICATIONS ACCESSORIES OPTION...

Page 5: ...0 200 Multiple reduction and enlargement in 1 steps Ten originals A4 are set in the RADF This includes the first copy time Manual feeding represents the value when the size is set CPM Paper size Cassette Manual LCF A4 B5 A5 R 45 40 45 LT ST R A4 R B5 R 34 34 LT R B4 FOLIO 29 29 LG Computer A3 24 24 LD Reduction 23 23 23 Enlargement Mode CPM Original Copy Number of copies 1 1 1 set 36 3 set 42 5 se...

Page 6: ... sheets Toner supply Automatic density detection and replenishment Toner cartridge replacement Exposure Automatic control and manually selectable 9 steps Weight Copier 95kg Power source 115 V 60 Hz 12A For the U S A and Canada 220 240 V 50 60 Hz 8A For Europe Power consumption 1 5 kW 115 V 1 7 kW 220 V 240 V Counter 7 digit total counter Machine size 601 mm 676 mm 540 mm 660 mm ...

Page 7: ... 2015 20 bins multi position stapler Sorter kit KN 2060S02 For MG 2009A KN 3560S01 For MG 2012 Sorter staple cartridge STAPLE 400 For MG 2010 12 STAPLE 700 For MG 2015 Work tray KK 2060 Key copy counter MU 8 MU 10 6 digit 1 2 Accessories Copy receiving tray 1 pc Operator s manual 1 pc Set up report 1 pc Drum 1 pc Developer 1 bottle Toner 1 pc Accessories vary according to the destination 1 3 Optio...

Page 8: ...1 Sectional view A Front view Front view For details of the ADU and RADF refer to chapter 13 ADU and chapter 18 RADF 2 7 8 6 17 68 67 20 69 60 55 5 4 3 15 16 14 19 18 21 28 12 13 10 9 1 11 39 45 40 62 44 46 63 47 42 41 43 66 64 65 37 25 23 22 70 71 24 36 38 33 48 49 50 29 26 27 30 59 61 52 59 56 58 54 53 57 51 72 32 31 34 35 ...

Page 9: ...r stop switch 1 S7 63 Paper stop switch 2 S16 64 Paper empty switch 2 S14 65 Cassette tray 66 Cassette size switch 2 S15 67 Exit ADU selection gate 68 Exit roller 69 ADU 70 Exit fan 1 M7 71 Exit fan 2 M15 72 Exit switch S9 No Name 1 Carriage 1 2 Mirror 1 3 Reflector 4 Light distribution adjustment plates 5 Exposure lamp 6 Carriage 2 7 Mirror 2 8 Mirror 3 9 Mirror unit 10 Mirror 4 11 Mirror 5 12 Mi...

Page 10: ...Nov 1997 TOSHIBA 2 3 4560 4570 GENERAL B Rear side view 80 84 78 85 91 86 98 93 92 97 90 89 88 79 83 99 94 76 82 95 81 87 77 96 ...

Page 11: ...er drive 84 Main motor M1 85 Lens motor M3 86 Mirror motor M4 87 Thermistor 1 THMS1 88 Developer unit drive gear 89 Aligning roller 90 Paper feed belt 91 Manual feed clutch CLT4 92 Transport roller clutch CLT6 93 Transport roller drive belt 94 Cassette feed clutch CLT3 5 95 Optical fan M6 12 18 96 Document motor M11 97 Transport motor M16 98 Transport roller clutch CLT7 99 Transport roller clutch ...

Page 12: ...BA 2 5 4560 4570 GENERAL 2 1 2 Electrical parts layout A DC electrical parts except motors 37 22 27 4 1 10 20 2 7 8 12 26 24 17 19 39 32 29 34 5 31 30 13 38 9 35 36 33 18 16 11 25 6 21 23 14 15 Front side Rear side 3 ...

Page 13: ...h PSTPO SW S8 18 Paper stop switch 1 PSTP1 SW S7 19 Side door switch U COV SW S4 No Name 20 Auto paper sensor 1 APS 3B 21 Drum separation claw solenoid SCRP SOL SOL1 22 Exit switch EXIT SW S9 23 Heat roller thermistor 1 THMS1 HTR 24 Toner sensor TNR ATC 25 Lens switch LNS SW S11 26 Mirror switch MRR SW S12 27 Automatic exposure PC board PWA AES 29 Transport roller clutch RGT1 CLT CLT1 30 Transport...

Page 14: ...otor TNR MOT M9 46 Document motor DCM MOT M11 47 Aligning motor RGT MOT M17 48 Tray up motor 2 T UP2 MOT M14 No Name 49 Optical fan F OPT FAN F M12 50 Optical fan R1 OPT1 FAN R M6 51 Optical fan R2 OPT2 FAN R M18 52 Exit fan EXIT1 FAN M15 53 Exit fan EXIT2 FAN M7 55 Developer unit fan DEV FAN M19 56 Transport motor FEED MOT M16 46 42 50 53 41 55 47 56 48 43 44 45 Front side Rear side 52 49 51 ...

Page 15: ...MP 67 Thermofuse FU EXPO 68 Fuse PC board PWA FUS Option 69 Damp heater U2 D HTR U2 Option No Name 57 SW power supply PS ACC 58 Door switch DOOR SW S2 59 Main switch MAIN SW S1 60 Lamp regulator PC board PWA LRG 61 Heater lamp HTR LAMP 62 Damp heater L D HTR L Option 63 Thermostat K THERMO 69 67 58 65 60 64 68 66 63 59 61 57 62 Front side Rear side ...

Page 16: ...tor Replenishes the toner Brush motor 24 30 M11 DCM MOT Document motor Drives copy area indicators Pulse motor 9 2 M12 OPT FAN F Optical fan F Cools the optical system IC motor 60 4 14 M14 T UP2 MOT Tray up motor 2 Drives the lower cassette tray to Brush motor 12 36 move it up down M15 EXIT1 FAN Exit1 fan Cools the drum and cleaner IC motor 60 4 14 M16 FEED MOT Drives transport roller IC motor 14 ...

Page 17: ...er cassette CLT6 RGT2 CLT Transmits transport roller 1 13 29 Transport roller clutch 2 drive CLT7 RGT3 CLT Transmits transport roller 2 10 30 Transport roller clutch 3 drive SOL1 SCRP SOL Drum separation claw drive 4 42 Drum separation claw solenoid 2 Electromagnetic spring clutches and solenoid 3 Counters Symbol Code name Function Remarks Symbol Code name Function Remarks Parts list Page Item T T...

Page 18: ...SW Home switch Detects home position of the Photointerruptor 11 8 optical system S11 LNS SW Lens switch Detects home position of the lens Photointerruptor 11 8 unit S12 MRR SW Mirror switch Detects home position of the mirror Photointerruptor 11 8 unit S13 T FUL SW Detects when the used toner bag Push switch 10 2 Toner full switch is full S14 EMP2 SW Detects lack of paper in the lower Photointerru...

Page 19: ...tic exposure PC board FUS PWA FUS Fuse PC board Fuse for the damp heater circuit 7 31 5 Heaters and lamps 6 PC boards Symbol Code name Function Remarks Symbol Code name Function Remarks Parts list Page Item EXP EXPO LAMP Exposes the original Halogen lamp 19 13 Exposure lamp 300W HTR HTR LAMP Heater lamp Fixing Halogen lamp 26 22 900W 100V series 1100W 200V series ERS ERS LAMP Discharges the drum F...

Page 20: ...iciency ACC PS ACC Power supply for entire copier 8 7 Power supply for all power 8 Others Parts list Page Item ATS SNR ATC Reads toner density with a magnetic 24 33 Auto toner sensor sensor THMS1 THMS1 HTR Detects temperature of the heat roller 26 6 Heat roller thermistor 1 THMS2 THMS2 HTR Detects the temperature of the heat roller 26 6 Heat roller thermistor 2 end THERMO K THERMO Prevents abnorma...

Page 21: ...PTN SW LNS SW MRR SW LNS MOT MRR MOT J101 J102 J103 J243 J219 J212 J105 J272 J276 J275 J218 J257 J69 J63 J64 J71 J72 T M12 T CTR OPT FAN F J70 J110 J111 J306 J109 J112 J247 SCRP SOL APS F APS C PWA F AES SOL1 J308 SNR ATC TNR MOT J236 To ADF J274 K K CTR option J244 J47 J103 J301 DRM THMS J121 T FUL SW S13 PS LRG J501 M11 HOME SW SCN MOT DCM MOT MAIN MOT OPT1 FAN R FU EXPO EXPO LAMP PWA F ERS K DC...

Page 22: ...15 J16 J4 J213 J217 RGT1 CLT RGT2 CLT J3 J550 J549 FEED MOT RGT MOT PWA F LGC J18 J9 J14 Sortor option Lower Unit option DC AC To Upper Unit CLT6 CLT7 M19 M17 M16 DEV FAN To Upper Unit THMS1 HTR THMS2 HTR PS HVT To Developer Unit BIAS J222 K THERMO HTR LAMP Transport Belt Separation Charger Transfer Charger Pre Transfer Guide J511 J90 J312 J80 D HTR L PWA F FUS Thermostat S8 PSTP0 SW J227 J155 J22...

Page 23: ... 1 Remove 4 screws C Lower rear cover 1 Remove the upper 3 screws 2 Loosen the lower 2 screws D Upper feed cover 1 Open the front cover and the bypass tray and then remove 2 screws E Feed cover left and right 1 Remove the paper feed cover 2 When removing the left feed cover open the front cover 3 Remove the screws 2 on each side Upper rear cover Upper feed cover Left feed cover Right feed cover Lo...

Page 24: ...ove 5 screws L Upper inner cover 1 Remove the process unit 2 Remove 3 screws Upper inner cover H Rear top cover 1 Remove the original cover 2 Remove 4 screws I Right top cover feed side 1 Remove 2 screws J Left top cover exit side 1 Remove 2 screws K Glass fix 1 Remove 2 screws Glass fix Right top cover Left top cover Rear top cover Lower exit cover Upper exit cover ...

Page 25: ...screw N Door switch cover 1 Remove the fuser connector cover 1 screw 2 Remove the door switch cover 1 screw O Lower inner cover 1 Remove the toner bag 2 Remove the middle inner cover 3 Remove 1 screw Middle inner cover Lower inner cover Fuser connector cover Door switch cover ...

Page 26: ...move the logic PC board B Power supply PC board PS ACC 1 Remove the connector bracket 2 screws 2 Remove 14 connectors 3 Remove 4 screws 4 Remove the power supply PC board C Lamp regulator PC board PWA LRG 1 Remove the upper rear cover 2 Remove 2 connectors 3 Remove the lamp regulator PC board 4 locking supports Locking support PWA LGC PS ACC Connector bracket PWA LRG Connector Connector ...

Page 27: ...rawer connector bracket D ADU drawer connector 1 Remove the logic PC board 2 Remove the bracket for the logic PC board 3 screws Remove the connector J535 on the PS ACC 3 Remove the bracket for the ADU drawer con nector 2 screws Bracket for PWA LGC ...

Page 28: ...etic roller Bias 150 VDC 900W 115V 1100W 220 240V 6 Separation Separates the transfer sheet along with the toner from the drum 7 Fixing Fixes the toner on the transfer sheet by applying heat and pressure 8 Cleaning Mechanically removes any re maining toner on the drum 9 Discharge lamp Discharges any remaining charge from the drum 1 Charging Negatively charges surface of the photosensitive drum 2 E...

Page 29: ...e 300W halogen lamp stabilized with 2 regulator light intensity remains constant even when voltage varies 4 Development 1 Magnetic roller One magnetic roller with two shaft 1 mixers 2 Auto toner Magnetic bridge circuit system 2 3 Toner replenishment Toner cartridge system 3 4 Toner empty detection Intensity sensing system 4 5 Toner T 2060 5 T 3560 6 Developing material D 2060 6 D 4560 7 Developer ...

Page 30: ... System Long life heat roller system 1 Fixing Fixing roller Aluminum roller coated with Teflon ø40 Pressure Pressure roller Silicon rubber roller with PFA tube ø35 Lamp rating Infrared heat Infrared heat 900W 100V series 1030W 200V series 1100W 220 240V 2 Cleaning Cleaning with blade and 2 Cleaning with cleaning felt roller silicon impregnated roller and silicon impregnated roller 3 Heater tempera...

Page 31: ...n indicating the copy area Initialization of the paper feed section Each slot s cassette trays move upward If they were raised already they are not moved 2 Pre running 65 seconds after power is turned ON Main motor rotates Fuser unit drive section rotates Pre running Pressure roller is warmed After pre running for 15 sec the main motor stops Fuser unit drive section stops 3 When the heat roller te...

Page 32: ...itch 1 S7 is turned ON Aligning operation After a set amount of time the feed roller stops rotating CLT1 3 Carriage operation Exposure lamp is turned ON Carriages 1 and 2 scan in a forward direction Scanning motor M15 is turned ON At this time if the toner density of the developer material is lower than the set value the copier enters the toner supply operation Toner motor M9 is turned ON 4 A set ...

Page 33: ... 4570 OPERATION Optical fan motors M6 M12 M18 and developer unit fan M19 stop and exit fan motors M7 M15 rotate at low speed Carriages and indicators move to the position indicating copy area The copier enters the standby mode ...

Page 34: ...42 3 82 2 11 1 32 2 23 2 64 3 54 0 85 1 17 0 50 2 41 2 96 3 73 3 62 0 50 2 49 2 96 3 81 1 85 3 17 2 30 1 60 2 30 2 92 2 68 3 40 4 00 4 72 3 62 2 03 2 49 3 35 2 08 2 17 3 40 4 97 6 47 6 51 4 97 ON ON ON ON ON ON High High OFF OFF Low OFF Low OFF High ON ON ON ON ON BWD FWD FWD BWD BWD CW CCW 1 13 Timing chart for two A4 actual size cassette feedings ...

Page 35: ...peration Paper reaches the aligning roller Paper stop switch1 S7 is turned ON After a set time lag the manual feed clutch CLT4 is turned OFF and paper feeding is termi nated 4 The operation is the same as in 3 through 6 of 4 2 3 Automatic Feed Copying Using the PRINT key 4 2 5 Interrupt copying 1 The INTERRUPT key is pressed Interruption LED is turned ON The copying operation is temporarily halted...

Page 36: ...red without turning OFF the door switch red flashing display on the display panel 1 CLEAR PAPER 2 ADD TONER yellow flashing display 3 REPLACE TONER BAG C Faults which cannot be cleared unless the main switch S1 is turned OFF 1 SERVICE CALL A 1 ADD PAPER In the case of the copier and PFP cassettes When the cassette is not installed the size switch S15 detects the absence of the cassette When the ca...

Page 37: ... ON The tray is not normal Removing reinstalling the LCF or turning the machine OFF ON clears this condition For the pedestal turn the power OFF ON Within a fixed time the tray up switch is turned ON The tray motor stops At this time if the empty switch is ON It is determined there is paper At this time if the empty switch is OFF It is determined there is no paper The ADD PAPER is displayed During...

Page 38: ...FF A 3 INSERT KEY COPY COUNTER If the copy counter optional is installed in the copier and is then withdrawn The INSERT KEY COPY COUNTER display appears Copying is not possible If the counter is withdrawn during copying the machine will stop after the paper being copied has exited B 1 CLEAR PAPER Leading edge jam detection by the exit switch S9 E01 The aligning motor is turned ON 1 313 sec The exi...

Page 39: ...opying CLEAR PAPER E04 Leading edge jam detection by the paper stop switch in front of the aligning roller After the leading edge of the paper passes the transport rollers if the paper stop switch 1 S7 is not turned ON within a fixed time Paper misfeeding E05 During paper feeding from the ADU After the feed clutch is turned ON if the paper stop switch S16 does not come ON within a fixed time Paper...

Page 40: ...er cartridge and close the front cover Toner supply operation copying is possible B 3 REPLACETONER BAG The toner bag becomes full of toner The toner recovery auger moves towards the rear of the copier the toner full switch S13 will be turned ON REPLACETONER BAG display When the toner full switch S13 comes ON during copying Copying will stop after the last sheet has exited during copying Clearing m...

Page 41: ...O NO YES NO 4 4 Flow Charts 4 4 1 Power on to ready DC power ON Main switch ON Restart Cover open Heater lamp HTR ON SCN MOT LNS MOT MRR MOT DCM MOT STOP MOT GUIDE MOT ADU JAM SW ON P STP SW ON E03 Start initialization A Paper jam EXIT SW ON ü ï ï ï ý ï ï ï þ ...

Page 42: ... start of initialization C21 or C22 or C23 Servicecall Lens and mirrors posi tioned for specified reproduction ratio Carriage and indicator indicate copy area Is heat roller pre running sufficient for fixing Main motor ON Pre running operation starts Have15sec passed MainmotorOFF Pre running stops READY Servicecall C41 Isthe thermistor open T FULL SW ON Toner bag replacement Toner fullremoval oper...

Page 43: ...mainingcopies zero Scraper solenoid OFF Aligning motor OFF Counter OFF Aligning motor ON Counter ON Scraper solenoid ON Feed motor OFF Feed motor ON Transfer charger ON Separation charger ON Discharge lamp ON Optical section control end Carriage retreats to home position Exposure lamp OFF Carriages stops Carriage advances Exposure lamp ON C01 Service call Carriage moves to home position Optical se...

Page 44: ...4560 4570 OPERATION 4 14 Nov 1997 TOSHIBA OK NG B Exit switch check 2 Paper jam E02 Transfer changer OFF Separation charger OFF Discharge lamp OFF Drum rotation reversed Standby ...

Page 45: ...5 1 Detailed Drawing of the Control Panel and the Display Panel Details of the display panel For the U S A and Canada For Europe Arrangement of the control panel COPY SYZE A4 A3 B4 A5 UNIVERSAL ORIGINAL APS AMS 2 3 1 5 6 4 8 9 7 C 0 HELP F C 100 200 50 8 8 8 8 8 0 0 CLEAR STOP PRINT FUNCTION CLEAR TIMER ENERGYSAVER PHOTO INTERRUPT LIGHT AUTO DARK ZOOM COPY SYZE A4 A3 B4 A5 UNIVERSAL ORIGINAL APS A...

Page 46: ...as set Press the ENERGY SAVER key or PRINT key to clear This message is displayed when using ADF single sided copying or when not using the ADF Released by pressing the PRINT key Copier status Warming up When the power switch is turned ON this message is displayed until the copier is ready to make copies Ready for copying This message is displayed when the copier is ready to make cop ies and the c...

Page 47: ...n there is no paper in a cassette The copier indicates which cas sette is empty see Fig 2 2 1 A Manual copying is possible Add toner This message is displayed when there is no toner in the hopper see Fig 2 2 1 B The message is displayed and the copier stops Key copy counter not inserted This message is displayed if the key copy counter is taken out when the copier is ready or is copying see Fig 2 ...

Page 48: ...from the sorter and open and close the front cover Open the front cover and gently re move the jammed paper Copier status Paper jam in manual feed tray This message is displayed when paper jams in the manual feed tray see Fig 2 2 2 A Paper jam in copier This message is displayed when paper jams inside the copier see Fig2 2 2 B Misfeed from cassette This message is displayed when paper fed from a c...

Page 49: ...power switch correct the cause of the problem and then turn on the power again Have the service center carry out pe riodic maintenanace Copier status This message is displayed if a motor sensor or switch etc does not function correctly PM cycle display This message is displayed when the copier is ready for periodic maintenance Copies can be made 17 ...

Page 50: ... Stop function The copy quantity indicator will not change When not copying When pressed once the copy quantity indicator returns to 1 4 During copying avoid sheet bypass feeding because of possible paper jamming Note The interrupt mode will be automatically canceled when the machine is not used for 45 seconds CLEAR STOP key COPY SIZE key INTER RUPT key ENERGY SAVER key EXPOSURE key Sheet bypass O...

Page 51: ...comprises an STN black and white mode transparent liquid crystal that has a 320 x 240 dots display area driver LSI frame printed circuit board and side type CFL backlight STN Super Twisted Nematic 2 Block diagram Fig 4 1 2 IC1 IC2 CP D0 D1 D2 D3 FRAME LOAD VDD VSS Vo VEE D OFF 160 160 IC3 IC4 120 120 LCD PANEL 320 x 240 DOTS Transparent SW power supply ...

Page 52: ...Each character on the liquid crystal is made up of 16 x 16 dots or 16 x 8 dots The whole panel consists of 320 x 240 dots Graphic data are written by the main CPU to the liquid crystal controller at the RAM address corre sponding to the position at which it is to be displayed The LCD controller then sends the data to the LCD Fig 4 1 3 Data Transmission Method PNL CPU LCD D3 D0 UD3 UD0 AD15 AD0 D7 ...

Page 53: ...rcuit 1 LED display method For example the following shows how the LED LP12 APS lights up for displaying automatic paper sensing When DSPON0 signal becomes L level transistor Q3 is turned ON Further when IC1 pin16 D8 becomes L level current flows from 5VD to LP6 APS through the transistor In this way LP6 APS lights up ...

Page 54: ...TL16KG LP11 K A LP12 LTL16KG A K LTL16KG LP13 K A C2 33P 50 1 2 LELTH0 LECLK LERST SGD LEDAT P 3 P 2 P 1 P 0 P USER APS O 3 O 2 O 1 O 0 O USER AMS FC AZ7932S L R D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 SOUT LATCH LAST BE0 STB CK SI VDD VSSL VSSD VSSD VSSD VSSD EXPO9 EXPO8 EXPO7 EXPO6 EXPO5 EXPO4 EXPO3 EXPO2 EXPO1 AUTO PHOT0 TIMER P S INT 1K R2 2 1 VDD R4 1K 1 2 R1 1K 1 2 IC1 1 30 23...

Page 55: ...6 APS Automatic paper selection IC1 16 7 0 3 Original size IC1 17 8 0 2 Original size IC1 19 9 0 1 Original size IC1 20 10 0 0 Original size IC1 21 11 0 USER Original size user adjustment IC1 22 12 AMS Automatic magnification selection IC1 24 13 FC All clear IC1 25 3 Condition of LED lighting 1 The transistor Q2 or Q3 connected on the anode side of the LED is ON status 2 Output connected on the ca...

Page 56: ...he aligning roller via the timing belt Transport roller Main motor rotation and feed motor rotation are transmitted to the trans port roller clutches via timing belts and gears Cassette feed roller Feed motor rotation is transmitted to the cassette feed roller via timing belts and gears Drive system Rear side view Lower cassette feed roller Clutch G28 Feed motor G10 Belt 72 pitch Upper cassette fe...

Page 57: ...move the upper rear cover the lower rear cover the upper feed cover and the lower feed cover 2 Remove the rear inner cover SU 2 screws and the rear inner cover U 3 screws 3 Remove the main motor 2 connectors and 2 screws B Clamshell fulcrum drive unit 1 Remove the wire harness from the M band of the clamshell fulcrum bracket 2 Remove the clamshell fulcrum drive unit 1 connector and 3 screws ...

Page 58: ...nnector and 4 screws Note Main drive unit gears The drum drive gear and pulley are press fitted to their shafts D Feed drive unit 1 Remove the lower frame reinforcement bracket 3 screws Dev unit drive gear Fuser drive gear Manual feed drive gear assistant drive gear Drum drive gear Lower frame reinforcement bracket ...

Page 59: ...rs and 2 screws 3 Remove the feed motor bracket 3 screws 4 Remove 2 belts 5 Remove the stop ring one way clutch and pulley and then take out one clutch setscrew Then remove one more clutch Connector Feed motor Feed motor bracket Stop ring One way clutch Pulley clutch Belt ...

Page 60: ...Nov 1997 TOSHIBA 6 5 4560 4570 DRIVE 6 Remove the clutch bracket 1 screw E Aligning motor 1 Remove the aligning motor 1 connector and 3 screws Clutch bracket Connector Aligning motor ...

Page 61: ...gh 4 above the motor keeps running 5 The FG pulse is generated by the FG pulse pattern and the N S magnets of the rotor installed on the motor 6 The phases and velocities of the FG pulse and the reference frequency from the LGC are compared and the differences are added to IC3 Further to this are added the fluctuations in the supply volt age Signal generation 7 Changes the switching timing for the...

Page 62: ...s signal is a reference clock signal for the motor to rotate at a fixed speed 4 MOT FG signal Generates the FG signal during motor rotation 5 MOT BRK signal LGC MOT Input When it becomes L level the motor rotation is broken down 6 MOT ON signal LGC MOT Input This signal is motor ON OFF control signal When it becomes L level the main motor rotates When it becomes H level the transport motor rotates...

Page 63: ...whole original image is reflected on the drum surface through the light source being scanned from the leading edge to the trailing edge This area where functions as above are performed is called the optical section located at the upper side of the copier Optical system front view Original width indicator Scanning motor Optical fan Carriage 1 Carriage 2 Original glass Lens unit Mirror 6 Lens motor ...

Page 64: ...and the drum rotation speed is specified as follows In actual size copying both speeds are the same The reproduction ratio of the direction of paper transport lengthwise repro duction ratio is specified by this scanning speed being changed In enlargement copying the scan ning speed is slower than the drum rotation speed and in reduction copying it is faster Mirror 1 Reflector Light distribution pl...

Page 65: ...on the surface of original and adjusts the light intensity If the positions for the installation of this adjustment plate at the front or rear side are shifted and the light intensity is different at both sides this may cause uneven light distribution 3 Carriage 2 Consists of mirror 2 and 3 conducts the reflected light from mirror 1 to the lens via mirror 2 and 3 This is also scanned by the scanni...

Page 66: ...o mirror 6 via mirror 4 and 5 This is driven by the mirror motor Changing of positions of the lens unit and mirror unit alters the reproduction ratio of the vertical direction of paper transport lateral reproduc tion ratio When the distance of the light path is equal between the original surface and the lens focus and the lens focus and the drum surface actual size copying is obtained When the for...

Page 67: ...ide the original scale This is for indication of the maximum area in which the copy can be made at that time The indicator is driven by the document motor The original range is indicated with the copy area indicator and orange line on carriage 1 Mirror 6 6 Mirror 6 Conducts the reflected light from mirror 5 to the slit Copy area indicator Original scale Carriage 1 Original range where a copy can b...

Page 68: ... carriage drive wire Carriage 1 and 2 are first moved to home position The home position is detected when carriage 1 passes the home switch When the PRINT key is pressed carriages 1 and 2 scan the original 7 3 2 Mirror motor lens motor Mirror unit Mirror motor Lens motor Rear side Carriage drive wire Carriage 1 Carriage 2 Tension spring Scanning motor Pulley Pulley Pulley Pulley ...

Page 69: ...ed ON by the lens unit then the mirror unit in that order and both units are positioned for actual size copying When the reproduction ratio is selected the lens unit and the mirror unit are positioned accordingly using the actual size position as the starting standard position 7 3 3 Document motor The front and rear copy area indicators are set at home position that is for maximum width via the ti...

Page 70: ...e exactly the same they are omitted here The circuit configuration on the inside of the IC is composed of each phase excitation switching section IC2 driver F1 F2 comparator IC1 and current detection resistor R7 The following explains the circuit operation when the A phase is excited VCC2 VDD 24V R14 C10 R12 G A R18 62353 187 iON iOFF 2 1 3 øA 15 øA 13 Td1 8 Vref 9 A A A A F1 IC1 IC2 IC2 IC2 IC2 F...

Page 71: ...2 D of IC2 becomes H level and F1 is turned ON conductive condition 4 Current flows into the coil A from the power supply of 24V and it gradually increases 5 The terminal voltage of the current detection resistor R11 increases and C becomes H level and F1 goes OFF from the moment when voltage B becomes higher than voltage E 6 Because the winding method of coil A and A is bipolar winding the energy...

Page 72: ...valent circuit 1 0 øIN A B C D IOFF ION VOIreg Ec Ioh 0 A Vref 0 V 0 A 0 A Ec C1 discharge voltage VCC2 1 A 2 A 3 øA 15 øA 13 Td1 8 Vref 9 Vref 11 Td2 10 øB 14 øB 16 B 7 B 6 PG 4 SG 5 NC 12 F1 F2 IC2 IC2 IC3 IC3 IC2 IC2 IC1 IC1 IC3 IC3 C1 R3 C2 R4 R1 R2 R7 R5 R6 R8 D1 D2 F4 F3 SUB ...

Page 73: ...riven by IC4 Logic PC board TD62308F Document motor M11 DCM MOT Driven by IC2 Logic PC board TD62308F In the case of 2 phase excitation the figure on the right shows the signals applied to the base of tran sistors QA QB QA and QB An ON OFF combination of the transistor is switched The combination of the current flowing phases is switched The motor rotates Phase A Phase A Phase B Phase B ON ON ON O...

Page 74: ...he surface of the original 3 Exposure step Detects the exposure position set by the operator s key input 4 Arithmetic and control unit Determines the lamp voltage by computation on the basis of AES and exposure step and outputs the PWM signal to the lamp regulator Note The ON OFF state of the exposure lamp is controlled by a special signal EXPON J2 A18 distinct from the PWM signal Original Exposur...

Page 75: ...he voltage applied to the expo sure lamp is continually varied accordingly a high lamp voltage being impressed for dark originals and a low lamp voltage for light originals 7 5 2 Operation of lamp regulator A typical characteristic curve is shown in the following diagram By means of a phase angle control system a lamp voltage corresponding to the PWM pulse duty ratio input is generated even if som...

Page 76: ...y BC RAM Consists of IC37 which stores exposure adjustment data to ensure that optimum exposure is performed for each reproduction ratio and for automatic exposure 3 Main CPU IC35 Incorporates software which computes the voltage to be applied to the lamp in accordance with the copying mode such as enlargement reduction automatic exposure and manual exposure and the adjustment data in BC RAM 4 PWM ...

Page 77: ...t voltage This DC voltage and pulse signal are rectified and compared with the reference voltage and amplified According to the output the trigger pulse generation circuit generates a trigger pulse synchronous with the power source frequency The energization angle of the TRIAC is controlled Makes the voltage at both ends of the lamp constant PWM Pulse signal Trigger pulse generation circuit Pulse ...

Page 78: ...ab sence of an original is detected by whether reflected light exists or not 7 6 2 Original size detection 1 If the copier is set in the original size detection mode the carriage is set at its home position 2 Detection is performed in an instant when the original cover is opened and each sensor receives the reflecting light and the conditions of the matrix shown in 4 are satisfied 3 Original size ...

Page 79: ...T LT R LG LT LD LT R LG ST LD LT APS C APS 2 APS 1 APS 0 APS F Original size is determined by a combination of the presence absence of the original Combination charts for size determination of A4 series and LT series are shown below in input level at ports PD1 PD3 Main CPU IC35 and ports IN30 IN32 Gate array IC21 LT series does not use IN32 are detection points for each sensor ...

Page 80: ...LG L L L L L LD LT series Main CPU IC35 Port Input Level Gate array IC21 APS 2 APS 1 APS 0 APS F APS C APS R Original PD3 PD2 PD1 IN30 IN31 IN32 size H H H H H H No original L L H H H H A5 L L L H H H B5 L H H H H H A5 R L L L H H L A4 L H H L H B5 R L L H L L H A4 R L L L L L H B4 L L L L L L A3 Note H Original detected L Original not detected H and L whichever is sufficient Port input level Main...

Page 81: ...take off the PC board 7 7 2 Automatic exposure sensor PC board PWA AES 1 Remove the original glass and move carriages 1 and 2 to the exit side 2 Remove the optical cover 2 screws Note Be careful not to deform the black sheets of either side of the lens unit when moving the lens unit with its optical cover removed Move the lens unit toward the paper feed side to protect the black sheet when install...

Page 82: ...nnector and remove 2 screws 7 7 4 Optical fan rear 1 Remove the upper rear cover 2 Remove the connector 2 and the screws 4 7 7 5 Lens motor mirror motor 1 Remove the optical cover 2 Remove each motor 2 screws each 3 Remove the each connector Mirror motor Lens motor Harness cover Optical fan front Connector Optical fan rear side Connector ...

Page 83: ...g installation position the lamp so that theTOSHIBA mark faces to the front Moreover the projection on the exposure lamp should face to the exit side Lamp Projection Reflector 4 To replace the thermofuse remove the 2 screws Thermal fuse Exposure lamp Exit side 7 7 6 Automatic paper size detector 1 Remove the original glass 2 Remove the 3 beam sensor 2 screws 1 con nector 3 Remove the reflecting ph...

Page 84: ...ion spring the wire drive belt and the scanning motor bracket Note When installing 1 Open the upper unit 2 Hang the wire drive belt on the scanning motor pulley 3 Hook the tension spring on the copier s frame 4 Hang the wire drive belt on the belt drive pulley and temporarily loosely tighten screw B Screw A is not installed yet Original width indicator unit 5 Make sure 2 3 times that the scanning ...

Page 85: ...the connector and the 2 claws on the bracket and then take out the home switch 7 7 11 Platen switch 1 Remove the upper rear cover and the rear top cover 4 screws 2 Remove the platen switch unit 2 screws Home switch Platen switch Connector Claw 3 Remove the 3 screws and take out the scan ning motor ...

Page 86: ... cover 2 Remove the cable guide 1 screw Front side 3 Remove the platen switch actuator by press ing and turning it in the direction of the arrow arrows 1 to 3 Then remove the connec tor and 2 claws Platen switch actuator Platen switch Home switch claws Platen switch claws 3 Remove the 2 brackets which attach carriage 1 to the wire 1 screw each Cable guide Wire fixing bracket ...

Page 87: ...ar side Earth wire Cable holder Connector 4 Remove the cable holder Disconnect the connector Remove the earth wire 1 screw 5 Remove the cable for carriage 1 from the ca ble holder of carriage 2 Wire fixing bracket Cable holder Cable Carriage 2 ...

Page 88: ...ge 1 7 7 14 Lens unit 1 Remove the lens cover 2 Remove the upper exit cover and the left top cover 3 Remove the cable guide 1 screw 4 Remove the lens mirror drive unit 5 Remove the indicator unit 6 Remove the tension bracket 1 screw 7 7 13 Mirror 1 1 Remove the carriage 1 2 Remove the plate springs 2 which fix mirror 1 3 Remove the mirror 1 Mirror 1 Tension bracket ...

Page 89: ...ror shaft Lens unit 7 7 15 Mirror unit and mirrors 4 and 5 1 Remove the lens unit 2 Remove the mirror unit from the lens mirror shaft 3 Remove the plate springs 2 each to take out the mirrors Mirror unit Mirror 5 Mirror 4 7 Remove the lens mirror shaft bracket 1 screw Bracket Shaft ...

Page 90: ...ptical cover upper rear cover left top cover and upper exit cover 2 Remove the glass stay in the rear 5 screws 3 Remove the cable guide 1 screw Glass stay rear 5 Disconnect the connector from the rear side and remove the 2 screws Lens mirror drive unit 4 Remove the cable holder and the earth wire 1 screw Glass stay ...

Page 91: ... the front and rear Wire drive pulley front side Wire holder jig Large Wire drive pulley rear side Wire holder jig Large 7 7 17 Lens mirror switch 1 Disconnect the connector Remove the lens mirror drive unit 2 screws 2 Disconnect the connector Remove the lens mirror switch with its bracket 2 screws 3 Remove the hook Disconnect the 2 connec tors Remove the lens mirror switch Connector Connector Len...

Page 92: ...o the paper feed side pulley and the paper exit side pulley on the front and rear 5 Remove the tension spring from the hook on the front and rear side Front side Rear side Exit side Feed side Wire holder jig Small Wire holder jig Small Tension spring Hook Tension spring Hook ...

Page 93: ...the upper exit cover and rear cover 2 Remove the upper exit roller unit 2 screws 3 Remove the upper exit roller from its fitting in the bracket 7 7 21 Exit side ozone filter 1 Remove the upper exit cover 2 Pull the ozone filter out Note When replacing it with a new filter be care ful not to crush or otherwise damage it with your fingers Fan unit Ozone filter Upper exit roller unit Mirror 2 Mirror ...

Page 94: ...e the upper unit release lever and the upper exit roller unit 7 7 23 Carriage drive wire 1 Remove carriages 1 and 2 2 Remove the scanning motor and the belt 3 Remove the belt drive pulley 1 screw 4 Remove the fan unit 3 Take out the 1 screw securing the fan unit 4 Remove the connector 5 Remove the exit fan motor Screw Fan unit Connector Exit fan motor Belt drive pulley ...

Page 95: ... carriage drive wires 1 Fit the end D of the carriage drive wire in the groove of the wire drive pulley and wind the carriage drive wire in the direc tion and the number of turns shown in the figure on the right Do not allow the wire to twist while winding it 2 Install the wire holder jig Large from the side indicated with an arrow Wire holder jig Large Front side End D 1 turns 1 2 5 turns Color B...

Page 96: ...iage drive wire through the opening in the upper unit and attach the bearings front and rear and stop rings front and rear Note Take care to prevent the carriage drive wire from becoming scratched 3 Rewind the wire on which the tension spring is attached on the paper exit side pulley from the bottom to the top and fit in the wire holder jig Small Next re wind on pulley 2 on carriage 2 from the bot...

Page 97: ...ley from the bottom to the top and fit in the wire holder jig Small Next rewind on pulley 1 on carriage 2 from the top to the bottom and hang the D terminal on the hook 5 Lead in the wire on which the tension spring is attached as shown in the figure on the right and hang the tension spring on the hook Carriage drive wire Paper feed side pulley Pulley 1 Carriage 2 Hook D terminal Hook Tension spri...

Page 98: ...or removal Mirror 6 cover Glass hook Cover hook Slit glass Cover hook 7 7 25 Mirror 6 1 Remove the optical cover and the mirror 6 cover 2 Remove the mirror 6 bracket 3 screws 2 hooks 3 Take out the mirror 6 bracket in the direction of the arrow 4 Remove the 2 plate springs and take out mir ror 6 Installation hole Mirror 6 Plate spring Plate spring Mirror 6 bracket installation screw Mirror 6 brack...

Page 99: ...the connector and bundling band 3 Remove the screw and take out the upper damp heater 1 7 7 27 Upper damp heater 2 1 Remove the original glass 2 Remove the upper exit cover 3 Remove the connector 4 Remove the screw and take out the upper damp heater 2 Upper dump hearter 2 Connector Connector Bunding band Upper damp heater 1 ...

Page 100: ...een the sheets of paper the separation roller stops causing the lower sheet also to stop and not be fed at that moment But in the case of single sheet feeding it rotates at the same timing as the paper feed roller so that it has the rotation force of that roller 4 Transport roller Transport the paper from the feed roller to the aligning roller 5 Aligning roller Paper fed from the paper feed roller...

Page 101: ...n such as for paper misfeeding etc is also used 10 Paper aligning switch Detects that the leading edge of the paper has arrived at the aligning roller Also detects that the trailing edge of the paper has passed through the aligning roller If the former is detected it reads that the aligning roller has completed paper alignment Paper feeding section sectional view Front side Manual feed roller Manu...

Page 102: ... cassette feed roller Clutch G28 Timing pulley G28 TP20 Timing pulley G47 TP20 Timing pulley TP20 G28 Timing pulley G56 TP22 Timing pulley TP20 G28 Timing pulley TP20 Timing pulley TP29 G28 Manual feed roller Clutch G28 Upper transport roller Clutch G28 Lower transport roller Clutch G28 Belt 65 pitch Belt 64 pitch Belt 139 pitch Clutch G28 Main motor G10 ...

Page 103: ...t has bumped into the stopper When the drive power of the feed roller is lost the pick up lever is lifted up by the force of the lever spring after which the pick up arm is also raised 8 1 2 Cassette pick up roller vertical movement Cassette insertion direction When the cassette is inserted the cassette lever d pushes up the lever a in the direction A Then the pick up roller is caused to fall by i...

Page 104: ...er sheet is forced to be transported by the feed roller in the direction of the arrow Example When only one sheet of paper 1 has entered into the separation roller section since the feed roller s transporting force is stronger than the separation roller s braking force the separation roller is forced to rotate causing the sheet to be sent toward the aligning roller When two sheets 1 and 2 have ent...

Page 105: ...he raising of the trays as described above the standby mode is obtained In the standby mode the trays remain in their raised position 2 When the cassette is inserted or removed in the standby mode the tray is raised again to check the paper supply C Manual feeding The manual feed switch detects the presence of manual feeding paper The manual solenoid is turned ON and the pick up roller and the man...

Page 106: ...N1 and IN2 are input terminals for the signals from the microcomputer In the control section the motor is controlled ON and OFF based on the signals from the microcomputer For the control refer to the table below Input Output IN1 IN2 M M Description H H L L BRAKE L H L H CCW upward H L H L CW downward L L OFF high impedance STOP 1 2 3 4 5 6 7 IN1 IN2 M GND M N C VCC Control logic Protection for ov...

Page 107: ...and link arm fixing stop ring in the rear side and then take out the manual feed tray unit 3 Disconnect the connector of the electromag netic clutch and sensor 4 Remove the stop ring on the hinge shaft on the front side 5 Remove the manual feed unit from the hinge shaft on the front side while sliding it towards the rear side Bracket Manual feed tray unit Stop ring Link arm Connector Stop ring ...

Page 108: ...the following points when reassembling the manual pick up feed and separation rollers 1 Set the timing belt securely on the pul ley 2 Be careful not to mistake the setting po sition of the timing belt manual feed roller 3 Put the clip properly into the slot of the shaft 4 Check that no oil etc has adhered to the surface of the timing belts pulleys and rollers 5 Make sure of the roller orientation ...

Page 109: ...paration pad 1 Remove the manual feed unit roller 2 Remove the separation pad bracket 2 screws and then take the bracket out toward the front 3 Remove the spring and then the separation pad Note Be careful not to damage the manual feed switch at the time of installation Separation pad bracket Separation pad ...

Page 110: ...ng screws front 1 pc rear 1pc 4 Remove the stop ring from the bush discon nection inhibitor on the front and rear side Remove the bush on the front and rear side frame Disconnect the connector of the align ing switch 5 Lift up the aligning unit to the direction of the arrow A and remove it Note When installing the aligning unit securely hook the belt to the pulley Aligning unit Stop ring A Connect...

Page 111: ...nt and rear 4 screws 3 Remove the aligning pressure spring 4 Remove the bushes upper lower 2 each 5 Lift up the aligning rollers upper and lower to remove them Front side Rear side Aligning roller U Pre aligning guide Bush U Bush L Aligning roller U Aligning pressure spring Pressure spring Bush L Bush U Aligning roller L Aligning roller U ...

Page 112: ... the jam release cover 3 Remove the stop ring from the bottom of the hinge 4 Remove the harness cover 5 Remove the jam release cover 6 Disconnect the connector from the feed unit 7 Pull out the cassette 8 Disconnect the paper size detection switch harness from the switch 9 Remove the two paper feed unit fixing screws and pull out the unit toward the front side Paper feed unit Harness Aligning roll...

Page 113: ...CLUTCH 6 R A Cassette feed unit rollers 1 Remove the clutch bracket Clutch bracket Feed roller Pick up arm Stop ring One way clutch CLUTCH 6 L Separation roller Pick up roller Cassette feed unit Note If the LCF has been installed on the copier use the following procedure to remove the harness cover and the connector 1 Remove the right feed cover 2 Remove the hinge stopper for the LCF in order to o...

Page 114: ... manual feed pick up paper feed and separation rollers pay at tention to the following items 1 Insert a pin in the pulley 2 Make sure the timing belt is correctly looped on the pulley 3 Make sure the lock direction of the one way clutch is correct 4 Make sure the clip is set in the shaft groove 5 Make sure no oil gets on the surface of the timing belt pulley and roller 6 Make sure of the roller or...

Page 115: ...rts is as follows Upper unit Drum Main charger High voltage transformer unit LED eraser array discharge lamp Lower unit Transfer separation charger High voltage transformer unit Transfer guide bias Transport belt unit Toner suction duct Discharge lamp Main charger Separation charger Transfer charger Transfer bias guide Toner suction duct LED eraser array Mirror 6 Slit glass Drum Transport belt uni...

Page 116: ...ansport belt Front side view Removing fuser unit transport belt unit and toner suction duct G28 Rear side sectional view Dev unit drive gear G27 G28 G20 G28 Transport belt drive gear G29 TP33 G22 Drum Transport belt drive Timing pulley G28 TP18 Timing pulley TP25 G28 Timing pulley G56 TP37 G26 Timing pulley G56 TP22 Timing pulley TP20 Timing pulley TP40 Drum drive gear G20 Timing pulley TP33 G29 G...

Page 117: ...unrequired portion of latent image formed on the drum 9 3 2 Transfer separation charger transport belt and toner suction duct A Transfer charger Transfers the toner on the drum to the copy paper high voltage transformer DC B Separation charger Separates the copy paper with toner from the drum high voltage transformer AC C Transport belt Transports the paper which has been transferred and separated...

Page 118: ...4560 4570 DRUM 9 4 Nov 1997 TOSHIBA Toner recovery duct D Toner suction duct Sucks in the toner that has been dispersed from the developer unit ...

Page 119: ...e screw shown by the arrow Pull out the unit to the front side Notes 1 Be careful not to damage the drum 2 Check that the drum shaft is in the cleaner unit B Disassembly and reassembly of cleaner section and developer unit 1 Place the process unit on the flat space Pull up the front side and rear side lever in the cleaner section Disconnect the developer unit from the cleaner section Notes 1 Be ca...

Page 120: ... process unit 1 When installing the process unit into the copier align the two guides Finally insert the positioning pin into the upper frame hole pushing the portion indicating the arrow Cleaner unit Developer unit Process unit Guide Positioning pin ...

Page 121: ...he PC board and pull it to the rear Note When reassembling insert the PC board firmly until it touches the bracket 9 4 3 LED eraser array 1 Remove the process unit and the rear cover U 2 Disconnect the connector 3 Remove one screw and pull it to the front Discharge lamp connector LED eraser array connector Discharge lamp LED eraser array ...

Page 122: ...4560 4570 DRUM 9 8 Nov 1997 TOSHIBA 9 4 4 Main charger 1 Remove the holder charger 2 Remove the main charger in the order of 1 2 Holder charger 1 2 ...

Page 123: ...l cover at the front and rear Front side V groove Rear side Terminal R V groove Terminal cover Terminal cover Spring hanger Terminal F A Grid 1 Pull the grid in the direction of the arrow and unhook it Note During replacement do not touch the mesh section of the grid with your bare hands Grid Notch Rear side Flat end screw driver ...

Page 124: ... the shaft Rear side Pad holder Cleaning pad Notes 1 Pay attention to the direction of the spring hanger on the front 2 Insert it fully in the V groove on the front and rear 3 The wire must not be kinked 4 Do not touch the wire directly with your hands 5 It is easy to replace the charger wire when the rear side terminal is put on the holder charger Terminal base Spring hanger Holder charger ...

Page 125: ... screw 2 Remove 1 connector Transfer separation charger Transfer separation charger Connector Notes 1 When reassembling pay attention to the direction in which the pad holder faces 2 When moved to the rear the pads 2 pcs should be clearly away from the wires Charge wire Cleaning pad ...

Page 126: ...emove the supporter Terminal Charge wire V groove Transfer separation charger Charge wire terminal Rear side Front side Charge wire terminal Spring Charge wire V groove Notes 1 When fitting the transfer separation charger insert it in the placement groove on the rear frame Also check that it can be pushed up by the spring and moves up and down 2 Do not forget to insert the connector Rear side Spri...

Page 127: ...n which the pad holder faces 2 When moved to the rear the pads 2 pcs should be clearly away from the wires Notes 1 Pay attention to the direction of the spring hanger on rear 2 Ensure that the charge wires are firmly inserted in V slots at the front and rear 3 The wire must not be kinked 4 Do not touch the wire directly with your hand 5 Insert the supporter securely into the hook or slot Spring ha...

Page 128: ...IBA 2 Remove the screw disconnect the 2 connec tors on the front side and take out the trans port belt unit Transport belt unit Connectors 9 4 6 Transport belt unit 1 Remove the toner bag Transport belt unit Transfer separation charger ...

Page 129: ...nsport belt Notes 1 To reinstall the transport belt unit in the copier fit its rear guide projection 2 in the hole in the rear copier frame and the front guide projection in the cut out por tion of the front copier frame 2 Check that the gears on the front and rear are properly engaged Gear Belt Rear side guide projection Drum side idle roller Belt case Shaft Stop ring 9 4 7 Toner suction duct uni...

Page 130: ...r with the protection bracket 5 hooks 9 4 8 High voltage transformer for main charger transfer separation and trans fer bias 1 Remove the transfer separation charger and the transport belt unit 2 Remove the screw and take out the toner suc tion duct 4 Remove the air filter Protection bracket Cover Hook Filter ...

Page 131: ...t the lower damp heater 4 Remove the connector and take off the fuse PC board from the lock support 5 Pull out the 2 Faston terminals remove the screw and take off the thermostat 4 Remove the 2 connectors and 3 screws and take out the high voltage transformer 3 Remove the connectors for the transfer sepa ration charger front side and the main charger rear side Rear side Main charger connector Hook...

Page 132: ...rocessor Outputs control voltage data from the main processor to the D A converter Analog conversion by the D A converter Outputs control voltage Vc to the charging transfer separation developer bias transformer Charging transfer separation developer bias transformer generates an output current or voltage proportional to control the voltage Vc Adjustment of control voltage Vc adjustment data chang...

Page 133: ...Nov 1997 TOSHIBA 9 19 4560 4570 DRUM MAIN CPU BC RAM IC37 IC21 IC35 IC46 J7 2 HVMVREF J7 7 HVTVREF J7 5 HVACVREF J7 1 BIASVREF Gate Array D A Converter ...

Page 134: ...ov 1997 TOSHIBA 10 1 4560 4570 DEVELOPER 10 DEVELOPER UNIT 10 1 Construction Front side sectional view Magnetic roller Top cover Upper cover Drum Leveler Mixer 1 Magnetic roller Auto toner sensor Mixer 2 ...

Page 135: ...rive gear teeth 27 Mixer 1 Gear teeth 27 Mixer 2 Pulley teeth 24 Timing belt 3M132 Sleeve drive pulley Magnetic roller teeth 26 Rear of developer Rear side Mixer 2 G27 Mixer 1 Pulley P24 Timing belt 3M132 Magnetic roller Sleeve drive pulley Guide roller Developer drive gear G27 Developer drive gear G26 Copier Developer drive gear G27 G27 P24 P26 ...

Page 136: ...OPER 10 2 2 Toner cartridge Developer unit front side Toner cartridge drive motor Drive gear teeth 32 Toner cartridge toner replenishment Mix toner with mixer 1 and 2 Front side Toner cartridge drive motor Mixer 2 Cartridge drive gear G32 ...

Page 137: ...terial bottle Pour the developer material into the de veloper unit 10 3 Disassembly Replacement 10 3 1 Disassembly and reassembly of developer unit from the process unit Refer to 9 4 1 Process unit 10 3 2 Pouring in developer material 1 Remove the upper cover 2 screws Upper cover ...

Page 138: ...n the gear in the direction of the arrow and cause the developer material to be transported onto the magnetic roller You can only touch the gear in the range indi cated in the figure 4 Install the upper cover After fully inserting the hooks four places fasten with screws Hook Upper cover ...

Page 139: ... Pay attention to the overlapping between the side seal front rear and the rubber seal Be careful when reassembling the upper cover The side seal must come between the outer rubber seal and inner one Outer rubber seal Inner rubber seal Side seal ...

Page 140: ...n the developer unit is turned upside down 2 Remove the upper cover 2 screws 3 Incline the developer unit and discharge devel oper material from the position indicated by the arrow Notes 1 Do not discharge developer material from the toner replenishment orifice as the developer will adhere to the gear of the toner cartridge drive motor causing the motor to seize 2 Take care to avoid the connector ...

Page 141: ...SHIBA 10 3 4 Guide roller A Front side 1 Discharge the developer material 2 Remove the holder bracket 2 screws 4 Remove the nozzle 3 screws 3 Remove the connector from the holder bracket Front side Holder bracket Holder bracket Connector ...

Page 142: ... the plate 3 screws coil spring B Rear side 1 Remove the adjustment plate 1 screw 2 Remove the plate 4 screws and 1 coil spring 6 Replace the guide roller Front side Plate Connector Motor unit Coil spring Guide roller Adjustment plate Coil spring Plate ...

Page 143: ...ccord ing to the method given in the Service Handbook 10 3 5 Toner cartridge drive 1 Discharge the developer material 2 Remove the toner holder bracket nozzle and side plate 3 Pull out the harness and disconnect the con nector Remove the motor unit 1 screw 4 Remove the motor 2 screws Replace the motor When the gear is defective replace the entire unit Guide roller Plate connector Motor unit Coil s...

Page 144: ...ve the har ness cover 3 screws 10 3 7 Magnetic roller 1 Discharge the developer material 2 Remove the toner holder nozzle plate and guide roller 3 Remove the leveler 2 screws 4 Remove the sleeve drive pulley 3 Remove the toner sensor 1 connector 1 screw Replace the sensor Harness cover Auto toner sensor Connector Leveler Sleeve drive pulley ...

Page 145: ...rrow remove it from the slit in the frame and pull it out towards the front 6 Remove the V ring Notes 1 Pay attention to the direction obverse reverse of theV ring when reassembling 2 After reassembly adjust the polarity po sition and the doctor sleeve gap accord ing to the method given in the Service Handbook V ring Magnetic roller Magnetic roller bushing Seal ...

Page 146: ...lector of Q2 at its side When P62 TMOT ON signal of the main CPU becomes L level Q10 is turned ON Q2 is turned ON The 24V power supply supplies current in Q2 via the motor winding the motor rotates When TMOT ON signal becomes H level Q10 is turned OFF Q2 is turned OFF The current which was flowing in the motor winding flows via the route of diode D2 It decreases at the rate of the time constant de...

Page 147: ... cartridge has been used up toner empty Configuration of auto toner circuit Auto toner sensor Detects toner density Control section Performs control to maintain the toner in the developer material at a constant specific density Toner motor Replenishes the toner in the developer material Display unit Displays the toner empty status Display Toner Toner sensor Developer material Developer unit Arithm...

Page 148: ...a drive section main blade recovery blade toner recovery auger and toner bag see Chapter 9 for the main charger When the drum has been removed When the main charger has been removed Drum gear Drum Main charger Drum shaft Toner recovery auger Toner recovery auger Main blade Recovery blade Separation claw ...

Page 149: ...LEANER 11 2 Nov 1997 TOSHIBA Drum toner recovery auger drive Gear teeth 20 Rear of machine inside frame Drum gear teeth 72 Drum Gear teeth 23 Toner recovery auger Toner full switch 11 2 Drive system Front view G20 ...

Page 150: ...es full of recovered toner the recovery auger is pushed back to wards the rear causing the toner full switch S13 to come on Note When the blade is released from the drum such as for adjustment of the high voltage transformer rotate the blade pressure re lease cam in the direction of the arrow B Recovery blade Catches the toner scraped off by the main blade C Toner recovery auger Transports scraped...

Page 151: ...ntact with the drum Consequently when fitting a new drum to the cleaner unit release the main blade pressure by turning the blade pressure release cam 4 After applying powder to the entire drum turn the cam and bring the main blade in contact with the drum 5 When rotating the cam use a screw driver to perform certain operations 6 When holding the cleaner unit do not touch the separation claw lever...

Page 152: ...er 1 2 6 When removing the drum from the cleaner unit hold the side of the drum as shown in the dia gram and slowly take it out Note When reinstalling the drum in the cleaner unit the drive gear should be installed to the rear Main blade Spring 2 1 5 Pull out the drum shaft from the rear after let down the drum shaft stopper lever Drum shaft Drum shaft stopper lever Drum shaft Drum Gear ...

Page 153: ...rger output adjustment block 1 Remove the cleaner unit 2 Remove the inner cover upper 3 Remove the connector of the solenoid 4 Remove a screw 11 4 3 Recovery blade 1 Turn the cleaner unit upside down 2 Remove the spring 3 Remove the separation claw lever 4 Remove the separation claw holder 4 screws 5 Remove the recovery blade 2 screws Separation claw lever Spring Recovery blade Separation claw hol...

Page 154: ...ve unit 5 screws 3 Remove the toner full switch 11 4 6 Drum separation claw solenoid 1 Remove the charger output adjustment block 2 Remove a spring 3 Remove a screw Drum separation claw solenoid Spring Drum drive gear Toner full switch Dev unit drive gear Fuser drive gear Manual feed drive gear assistant drive gear ...

Page 155: ...e receiving tray through the paper exit unit The fuser unit comprises the heater lamp heat roller pressure roller separation claws cleaning felt roller cleaning roller thermistor thermostat etc The paper exit unit consists of exit rollers exit paper guide etc Cleaning felt roller Separation claw Upper exit roller Exit paper guide Lower exit roller Cleaning roller Fuser cover Thermistor Thermostat ...

Page 156: ... roller The heater lamp is secured as it is while the heat roller rotates 2 Heat roller This roller is made of aluminum whose heat conductivity is relatively good and has heat applied by the heater lamp Steady pressure is applied to both the heat and pressure rollers mentioned later Fixing is performed by the transfer paper to be passed through between the two rollers as above so that the toner im...

Page 157: ...The thermistor detects the surface temperature of the heat roller If the temperature is lower than the standard temperature it turns ON the heater lamp if higher it turns it OFF 8 Thermistor 2 Temperature distribution in the axis of the heat roller may differ greatly at its center and ends by conditions Thermistor 2 detects the temperature at the heat roller end When either thermistor 1 or 2 detec...

Page 158: ...N if the thermistor 1 output voltage does not exceed 0 078 V CALL SERVICE C41 is displayed 2 Abnormal detection during standby copying Thermistor 1 If the thermistor 1 output voltage decreases to and remains at 0 078 V or lower for 260 msec or more CALL SERVICE C43 is displayed 3 Abnormal detection during standby copying Thermistor 2 If the thermistor 2 output voltage decreases to and remains at 0...

Page 159: ...ed to be rechecked 2 Relationship between the output voltage and the fusing temperature 200 C corresponds to approx 2 5V and 0 078 V corresponds to approx 40 C 3 Relationship between heat roller surface temperature and thermistor 1 resistance Temperature Thermistor resistance Heater lamp state Less than 200 C More than 3 2 KΩ ON 200 C 3 2KΩ Maintains previous status More than 200 C Less than 3 2 K...

Page 160: ...normal temperatures are detected by the respective thermistors First thermistor 230 C Second thermistor 270 C 2 Error codes C44 Displayed when keys C S 8 are pressed simultaneously at the time of Call Service Counter value 9 Displayed when you input 89 in the AD 0 8 mode 3 Machine condition After de energizing all outputs heater lamp exposure lamp control panel displays motors etc the microcompute...

Page 161: ...each 2 Remove the 2 connectors on the front side 3 Remove the 1 screw which secures the fuser unit Note Use the original hole round when secur ing it again 4 Slide the entire unit to the front side unhook the stud from the copier frame and remove it 12 5 2 Heater lamp 1 Remove the fuser unit 2 Remove the fuser cover 2 screws Connector Fuser cover ...

Page 162: ...ove the lamp holder bracket on the rear side 3 screws 3 Remove the lamp terminal fixing screws 2 screws 4 Remove the lamp holder bracket at the front side 1 screw Rear side Front side Lamp holder bracket Front side Lamp holder bracket Rear side ...

Page 163: ...pressure bracket 2 screws 4 Lift up the cleaning felt roller and cleaning roller to remove them 5 Remove the support bracket 2 screws 6 Remove the bracket fixing the thermistor and thermostat 2 screws Note Be careful not to deform the root of the ther mistor harness when removing the bracket 7 Remove the stay bracket 2 screws 8 Remove the C ring at the front and rear side and the gear at the rear ...

Page 164: ...nt side frame then take out the heat roller toward the upper side Note Be careful not to damage the heat roller sur face by knocking it against the bracket etc 12 5 4 Pressure roller 1 Remove the fuser unit 2 Remove the heat roller 3 Turn the pressure roller separation claw unit 2 screws black color Pressure roller separation claw unit ...

Page 165: ... with its bear ings Note When installing the pressure roller make sure the bearing grooves on both the front and rear are set in the pressure levers 12 5 5 Cleaning felt roller cleaning roller 1 Remove the pressure bracket 2 screws 2 Remove the roller by lifting it Entrance paper guide Pressure roller Bearing Cleaning felt roller Cleaning roller Bearing Pressure roller Pressure lever ...

Page 166: ... 2 screws and take off the thermostat from the holder Note When installing make sure the thermistor and thermostat both contact the heat roller surface evenly 12 5 6 Heat roller separation claw 1 Remove the separation claw unit 2 screws golden color 2 Draw out the shaft 1 screw 3 There are 6 separation claws in all Remove them all from their each spring Note Check that the edges tips of the claws ...

Page 167: ...sure roller separation claw 1 Remove the pressure roller separation claw unit 4 screws Refer to 12 5 4 2 Remove the spring and the pressure roller separation claw 3 There are 5 separation claws in all Remove them as described in 2 Lower exit roller Stop ring Separation claw Spring 12 5 10 Fuser entrance paper guide 1 Remove the fuser cover 2 screws 2 Remove the bracket 2 screws Note Be careful not...

Page 168: ...n Feeding for duplex copying Paper sizes 50 sheets stackable A3 B4 A4 B5 A5 Folio for Europe Ledger Legal Letter Computer Statement for U S A and Canada Type of paper Toshiba recommended paper 64 80 g m2 17 22 lb sheets of paper Max number of copies 1 50 sheets in multicopying Dimensions W598 x D620 x H110 mm Weight Approx 10 kg Power Source Supplied from the copier ...

Page 169: ...7 TOSHIBA 13 2 Names of Various Components 13 2 1 Front side view Idle rollers Gate cover Paper guide U Front cover Ground plate spring Motor cover Jam lever Paper guides Tray PC board End guide End switch Gate arm Gate solenoid ...

Page 170: ...Nov 1997 TOSHIBA 13 3 4560 4570 ADU Side motor End motor 13 2 2 Rear side view Transport rollers ADU guide L ADU guide U Drawer connector ...

Page 171: ...side section Stack feed roller Main Pick up roller Feed clutch Z28 ADU motor Side switch Stack roller Stack clutch Z40 Separation roller Empty switch Jam switch 13 2 4 Copier s exit side section Exit roller Gate Transport roller Stack feed roller Sub ...

Page 172: ... 3 Side motor 4 End guide 5 End motor 6 EXIT ADU selection gate 7 Gate solenoid 8 Open guide 9 Transport roller 10 Stacking section 11 Jam switch 12 Empty switch 13 Tray 14 Pickup roller 15 Stack feed roller 16 Separation roller Front side 16 6 9 8 9 11 7 4 5 2 3 13 1 12 16 14 15 10 ...

Page 173: ...onsecutively during stacking the side guides perform a paper aligning operation A jam switch is provided to have paper jams in the open guide detected The empty switch is to detect whether or not paper is present in the stacking section 13 3 2 Duplex copying After the paper stacking operation when a second original is set and the PRINT key is pressed the ADU motor starts rotating causing the eleva...

Page 174: ... rotates and pushes up the lever caus ing the gate to open The copied sheet is then transported to the ADU s stacking sec tion When the gate solenoid is turned OFF the arm is pulled back to its original position by a spring causing the gate to close and the copied sheet will exit Gate Lever Arm Gate solenoid Arm Gate solenoid Spring ...

Page 175: ...aper selected causing the side guides to move to the positions specified In addition each time five sheets are stacked the side motor performs paper aligning by moving the side guides to the right and left 2 End guide The end motor rotates corresponding to the size of paper selected causing the end guide to move to the position specified Side guides End guide ...

Page 176: ... in the direction of the arrow B in the stacking direction When the ADU motor rotates arrow A and the feed clutch Z28 energizes the pick up roller and the ADU stack feed roller are rotated in the feeding direction arrow C At this time the transport rollers do not rotate since a one way clutch is contained inside of the gear Z16 on the transport roller shaft ADU pick up roller ADU stack feed roller...

Page 177: ...ssembling and Reassembling Various Parts 13 5 1 Removing the ADU covers A Motor cover and gate cover 1 Remove one screw fastening each cover B Lower cover 1 Place the ADU upside down 2 Remove the 7 screws fastening the cover Motor cover Gate cover ...

Page 178: ...on gate 1 Open the front cover and the clamshell To re move the ADU exit unit open the unit and re move the screw of the unit s pivot bracket lo cated at the rear Remove the bracket 3 Take out two screws from the ADU exit unit and remove the vertical transport guide unit 2 Lift the rear side of the unit and pull out the pivot ...

Page 179: ...r paper guide by removing its two screws 5 To take out the EXIT ADU selection gate and exit roller remove the stop ring and bushing at the front and the gear and bushing at the rear from the exit roller of ADU exit unit whose ver tical transport guide unit has already been ex tracted Stop ring Bush Bush Gear Bush Stop ring Exit roller Bush Gear Upper paper guide EXIT ADU selection gate Vertical tr...

Page 180: ...t toward the rear Open guide stopper Open guide lower Stop ring Rear side 3 To remove the open guide units upper and lower remove the stop ring rear and the snap pin front and rear 1 each push the units to ward the rear to have the front stud disengaged and then take out the units toward the front Stud Stop ring Open guide unit upper and lower Rear side Front side ...

Page 181: ...move the stop ring and bushing at the rear 3 Remove the timing belt bring the transport roller 1 near to the front and then take it out toward the rear Timing belt Gear Pulley Bush Stop ring Guide roller Stop ring Transport roller 1 front side Stop ring Bush Roller shaft Transport roller 1 2 3 rear side Pin Open guide unit lower Transport roller 1 Transport roller 2 Transport roller 3 ...

Page 182: ...belt Pin Bush Pulley Pulley Stop ring Timing belt Pin Transport roller 2 front side Transport roller 3 front side Timing belt Stop ring Pin Pulley Bush Roller shaft C ADU pick up roller 1 Take out the upper paper guide by removing two screws Take out the open guide stopper from the lower open guide after removing one stop ring 2 Take out the open guide unit upper and lower by removing one stop rin...

Page 183: ...llers Main and sub 1 Take out the upper paper guide by removing two screws Take out the open guide stopper from the open guide lower after removing one stop ring 2 Remove the open guide units upper and lower by removing two stop rings and one snap ring 6 Remove the bushing from the rear end of the pick up roller shaft and the stop ring at the rear of the pick up roller Then take the pick up roller...

Page 184: ...removing the front stop ring move the roller and the entire guide toward the front and remove the pin 7 From the rear take out the sub stack feed roller pick up roller guide pin and main stack feed roller pick up roller guide pin and sub stack feed roller in this order Stop ring Pick up roller guide Pin Stack feed roller sub Stack feed roller main Bush E ADU separation roller 1 Remove the two scre...

Page 185: ...ove the upper paper guide by unscrewing two screws Take out the open guide stopper from the open guide lower after removing one stop ring 2 Take out the open guide unit upper and lower by removing two stop rings and one snap pin 3 Remove the motor cover by unscrewing a screw Separation roller unit Separation roller Shaft Stop ring Open guide unit upper and lower Paper guide upper Motor cover ...

Page 186: ...60 4570 ADU 4 Remove the spring on the rear Spring 5 Move the side guides toward the center Take out the ADU feed unit by unscrewing four screws ADU motor 6 Remove two screws and take out the ADU motor Side guides ADU Feed unit ...

Page 187: ...tch Loosening two setscrews of each of the feed and stack clutches take them out from their shafts 4 Align the end surface of the shaft and clutch then securely tighten the two setscrews at this position when reassembling the feed and stack clutches Make a gap of approx 0 5 mm between the feed clutch and the gear and also between the stack clutch and the bush ADU motor bracket Switch bracket Setsc...

Page 188: ... two screws Gate solenoid End motor bracket Timing belt Timing belt Side motor bracket D Side motor and end motor 1 Place the ADU upside down 2 Remove the lower cover by unscrewing 7 screws 3 Unscrew two screws take out the timing belt and remove the side motor bracket 4 The end motor can be removed by the same procedure 3 Remove the gate solenoid by unscrewing two screws Arm Gate solenoid Spring ...

Page 189: ...racket 3 Unlatch the claws of the switches 4 Disconnect the connector Switch bracket Jam switch Empty switch Side motor End motor 5 Remove the side motor and the end motor from their brackets by unscrewing two screws for each 6 Fix the side motor bracket at the position of 21 0 5 mm from the case when reassembling Side motor bracket 21 0 5 ...

Page 190: ...upside down and remove the lower cover 3 Remove the rail guide Rail guide 5 Unlatch the claws of the switch Side switch ADU motor bracket Side switch bracket B Side switch 1 Remove the ADU feed unit 2 Remove the ADU motor bracket 3 Disconnect the connector 4 Remove the guide switch bracket from the ADU motor bracket by unscrewing a screw ...

Page 191: ...4560 4570 ADU 13 24 Nov 1997 TOSHIBA 4 Disconnect the switch connector and unlatch the claws of the switch End switch claws End switch Connector ...

Page 192: ...the gate SOL1 Gate solenoid 13 6 3 Clutches Symbol Abbreviation Function Remarks CLT1 FEDCLT Feed clutch Used for paper re feeding CLT2 STCLT Stack clutch Used for stacking operation 13 6 4 Switches and sensors Symbol Abbreviation Function Remarks SA1 END SW Detects the end guide position in Semiconductor sensor End switch the stack section SA2 SID SW Detects the side guide position in the Semicon...

Page 193: ...997 TOSHIBA 13 7 Layout for Electrical Parts END SW STSOL SOL1 SA1 END MOT DM2 SID MOT DM3 SID SW SA2 ADU MOT DM1 FEDCLT STCLT JAM SW EMP SW CLT1 CLT2 SA4 SA3 Drawer connector for connecting with the copier Front side Rear side ...

Page 194: ...ng when the copier s front cover is opened closed 1 The operation in step 1 above is performed A 3 Initializing when the ADU is pulled out pushed in 1 The end motor END MOT DM2 rotates to move the end guide to its home position once then moves it to the position corresponding to the selected size of paper 2 The side motor SID MOT DM3 rotates to move the side guides to their home position once then...

Page 195: ...edure 2 5 is repeated until the specified number of copies are made When copies are finished ADU MOT DM1 stops its rotation D Duplex copying 1 When the first side copying operation is started ADU MOT DM1 is rotated and the side and end guides are moved to the position of specified paper size by the SID MOT DM3 and END MOT DM2 Additionally the STSOL and the STCLT CLT2 are turned ON in the same way ...

Page 196: ...specified time after the FEDCLT CLT1 is turned ON 9 The above step 8 is repeated until the specified number of copies are made After copying has been finished ADU MOT DM1 is stopped Meaning of signals L LOW level H HIGH level FEDCLT Paper feeding from ADU STCLT Paper stacking in ADU STSOL ADU stacking Normal paper existing Gate solenoid Send paper into ADU JAM SW No paper on ADU stack path Paper o...

Page 197: ...misfeeding during paper stacking During paper stacking if the ADU s JAM SW SA4 is not turned ON within about 3 sec after the copier s EXIT SW was turned ON OFF it is judged that paper misfeeding has occurred inside the ADU To clear this condition pull out the ADU remove the misfed sheet then push in the ADU If necessary open close the copier s front cover B Abnormal statuses at power ON 1 Paper re...

Page 198: ...ral flow charts 1 Duplex copying from single sided originals PRINT key ON Paper fed from the cassette Copying Copy transported into the ADU Change originals PRINT key ON 1 1 Paper fed from the ADU Copying Copy exits from the machine Final copy End Required number of copies made ...

Page 199: ...fed from the ADF 1 Paper fed from the cassette Copying Copy exits from the machine Next original fed from the ADF Paper fed from the cassette Copying Copy transported to the ADU 1 Next original fed from the ADF Paper fed from the ADU Copying Copy exits from the machine Final original End Required number of copies made Required number of copies made Required number of copies made ...

Page 200: ...ng from two sided originals PRINT key ON Copying Paper fed from the cassette Turn over the original PRINT key ON Paper fed from the ADU Copying Copy exits from the machine Copy transported into the ADU Required number of copies made Final copy End Place the original ...

Page 201: ...through RADF PRINT key ON 1 Original fed from the RADF Original reversed Paper fed from the cassette Copying 1 Original reversed Paper fed from the ADU Copying Copy exiting from the machine Final originals End Required number of copies made Required number of copies made Copy transported into the ADU ...

Page 202: ... Duplex copying from two page originals PRINT key ON Paper fed from the cassette Left side page copying Paper fed from the ADU Right side page copying Copy exits from the machine Final copy End Required number of copies made Copy transported into the ADU ...

Page 203: ...per fed from the cassette Left side page copying Copy exits from the machine 1st page Right side page copying Copy transported into the ADU Paper fed from the cassette Turn over to the next page 1 2 Right side page Left side page PRINT key ON Required number of copies made Required number of copies made ...

Page 204: ...copying Copy exits from the machine Final copy 2 Paper fed from the ADU Left side page copying Copy exits from the machine Final copy Paper fed from the cassette Right side page copying Required number of copies made 3 Paper fed from the ADU Left side page copying Copy exits from the machine Final copy End 3 Paper fed from the ADU Copy exits from the machine Final copy End Copy transported into th...

Page 205: ...aper size Side guides move to the paper size width 5 mm position ADU MOT rotates CW STCLT ON JAM SW ON 3 sec elapsed after copier s EXIT SW was turned ON ADU jam Standby JAM SW OFF 2 5 sec elapsed after copier s EXIT SW was turned OFF ADU jam Align 5 sheet stacked Side guides move to the paper size width 1 mm position Aligning Side guides move back to the paper size width 5 mm position Final copy ...

Page 206: ...97 TOSHIBA 13 39 4560 4570 ADU YES YES NO NO DM1 CLT1 CLT1 2 Duplex copying operation Duplex copying ADU jam 2 1 stops FEDCLT ADU MOT ON ON Copier PSTP SW ON FEDCLT 1 1 sec elapsed after FEDCLT was turned ON ...

Page 207: ...4560 4570 ADU 13 40 Nov 1997 TOSHIBA YES YES YES NO NO DM1 Final copy Has the final copy exited into the copy tray ADU MOT Standby stops 1 2 ...

Page 208: ...3 3 11 3 96 4 51 6 29 5 79 5 79 4 74 13 8 6 Timing charts A Timing for ADU stacking A4 size feeding from the copier s two cassettes Copier side ADU side PSTPCU Paper stop switch PSTPC0 Paper stop switch RGT CLT Aligning roller EXIT SW Exit switch ADU MOT ADU motor STSOL Gate solenoid STCLT Stack clutch EMP SW ADU empty switch JAM SW Jam detection sensor ...

Page 209: ...0 44 1 28 1 03 1 81 1 39 2 25 2 65 2 15 3 43 4 68 B Timing for ADU re feeding A4 size single sheet stacking Copier side ADU side PSTPCU Paper stop switch PSTPC0 Paper stop switch RGT CLT Aligning roller EXIT SW Exit switch ADU MOT ADU motor STSOL Gate solenoid STCLT Stack clutch EMP SW ADU empty switch FEDCLT Feed clutch ...

Page 210: ...Nov 1997 TOSHIBA 13 43 4560 4570 ADU 13 8 7 Harness connection diagram ...

Page 211: ...2 R4 4 7K 1 2 4 7K R3 2 1 2B4 0 1 50 C8 1 2 C9 0 1 12 2 1 GND 1 2 VDD 2E4 4 7K R5 2 1 VDD R7 4 7K 1 2 4 7K R6 2 1 R8 4 7K 1 2 4 7K R9 2 1 2E4 2A8 GND C7 0 1 12 2 1 C6 0 1 50 2 1 IC3 9 10 7 15 2 16 3 14 6 11 8 4 5 12 13 1 2E4 2E4 2E4 IC2 9 10 7 15 2 16 3 14 6 11 8 4 5 12 13 1 2A8 2A8 2A8 2D8 2C8 2C8 2B8 2B8 2B8 2E4 2F4 2F4 2B4 2B4 IC1 1 13 12 5 4 8 11 6 14 3 16 2 15 7 10 9 2B4 5VSW 5VSW ENDMB 24V 2...

Page 212: ...3052 14V 14 11 12 1 9 8 7 6 5 4 3 2 10 13 1D4 1B4 VDD J405 175487 9V 8 7 6 5 4 3 2 1 9 J401 17548713V 12 11 10 2 3 4 5 6 7 8 9 1 13 2 2 1B8 1B8 1B8 1B4 1B4 1B4 GND GND VDD VDD 1D1 1D1 1E1 1E1 1B1 1B1 1B1 1B1 1B5 1B5 1B5 GND GND 22 16 C1 1 2 VDD 47 50 C3 1 2 1 2W10K R1 2 1 22 16 C2 1 2 53324 6 J413 1 2 3 4 5 6 53324 6 J418 1 2 3 4 5 6 SIDM A SIDM C SIDM B SIDM D PJAM1AD PEMPAD SIDSW 24V DG ENDMC EN...

Page 213: ...4560 4570 ADU 13 46 Nov 1997 TOSHIBA 13 8 9 PC board assembly ...

Page 214: ...10A5 10C5 10D5 10D5 10C5 2E1 8A5 2E1 6D2 2E1 9D2 10D1 11C3 RM1 4 7K 4 3 2 5 1 VDD VDD 9D6 9D6 9D6 9D6 2A3 2A4 2A2 12D5 11B3 12D8 11C5 12C8 12C8 9A2 C38 2200P 50 2 1 1 10W4 7K R75 1 2 7D8 GND 1 10W4 7K R81 2 1 0 1 25 C70 1 2 C27 0 1 25 2 1 VDD GND VDD R83 2 1 R119 1 10W4 7K 1 2 1 10W4 7K R67 1 2 1 10W4 7K R68 1 2 1 10W4 7K R69 1 2 R90 1 10W4 7K 1 2 GND 11B8 0 1 25 C29 2 1 0 1 25 C30 1 2 C40 0 1 25 ...

Page 215: ...1 10W4 7K 2 1 1 10W100 R62 1 2 R110 1 2 R106 1 10W22K 2 1 IC22 6 5 IC31 8 9 IC31 11 10 C94 1 2 C95 1000P 50 1 2 IC22 3 4 IC12 11 10 1 10W22K R167 2 1 13B8 11E2 11E4 9E2 GND 1 10W470 R128 1 2 R108 1 10W4 7K 1 2 4 7K 22K RR7 8 6 4 1 9 7 5 3 2 4 7K 22K RR8 2 3 5 7 9 1 4 6 8 11A3 13A8 IC22 12 13 IC31 3 4 IC31 12 13 IC27 11 10 IC27 2 1 IC31 5 6 IC14 10 11 11E2 IC22 9 8 IC22 11 10 11E2 13A8 IC22 2 1 R17...

Page 216: ... 8 VDD IC13 3 4 13B3 13B3 IC13 6 5 13B3 IC13 9 8 IC12 1 2 IC12 4 3 13A3 13A3 IC12 5 6 13A3 VDD IC15 6 2 1 10 9 7 12 13 5 15 14 11 3 4 5D8 IC13 2 1 2E2 2E2 R124 2 1 R118 1 2 R125 2 1 R162 1 2 R33 1 10W22K 1 2 7D8 2A2 13A3 GND 4 7K RR4 4 3 2 1 5 9 8 7 6 VDD 2200P 50 C52 1 2 1 10W1M R92 1 2 12M X3 3 1 2 R161 1 10W4 7K 1 2 R97 1 10W4 7K 2 1 R151 1 10W4 7K 2 1 13B3 13B3 13A3 13A5 4C1 4A1 2A5 2F3 13B3 1...

Page 217: ... DEL 1 2 R243 1 10W100 2 1 R89 1 10W100 2 1 R2 1 10W100 2 1 1SS184 D24 K A1 A2 D23 1SS184 A2 A1 K 1SS184 D22 K A1 A2 D21 1SS184 A2 A1 K D20 1SS184 A2 A1 K 1SS184 D19 K A1 A2 13C3 12D5 9D2 3B8 12C5 12C5 12B5 12C5 12C5 12B5 12B5 13A5 13A5 13A5 13A5 13A5 13A5 13A5 13A5 GND 13C3 13C3 13C3 GND 1 10W100 R244 1 2 IC7 3 17 15 11 13 12 16 4 2 6 8 19 1 18 14 9 7 5 3A8 RGCLT CL FDCLT CL FDCLT CU TRMCL B TRMC...

Page 218: ...7K R218 2 1 R223 1 10W4 7K 1 2 R219 1 10W4 7K 2 1 1 10W22K R224 2 1 R217 1 10W22K 1 2 1 10W22K R221 2 1 R220 1 10W22K 1 2 R155 1 10W4 7K 1 2 1 10W4 7K R201 2 1 R210 1 10W4 7K 1 2 1 10W4 7K R215 2 1 R211 1 10W4 7K 1 2 1 10W470 R203 1 2 R208 1 10W22K 2 1 R189 1 10W22K 1 2 R214 1 10W22K 2 1 R213 1 10W22K 1 2 1 10W4 7K R209 1 2 1 10W4 7K R204 2 1 R202 1 10W4 7K 1 2 R197 1 10W4 7K 2 1 1 10W4 7K R195 2 ...

Page 219: ...1 0 1 12 9 3 4 5 6 7 8 10 11 0 2 A W E2 B1 B2 E1 FT M48T58 VDD 100 IC36 SKT 20 2 1 10 12 13 14 15 16 17 18 3 4 5 6 7 8 9 19 31 29 28 27 26 25 24 23 39 38 37 36 35 34 33 32 22 21 20 IC40 25 7 10 27 5 15 24 6 3 1 26 2 23 21 4 9 8 12 13 11 16 18 17 19 20 22 2A4 1E7 2D6 8C5 1A7 2A1 1A1 1F3 1A1 2A1 VDD SKT IC37 70 19 18 17 16 15 13 12 11 1 27 5 20 10 9 8 7 6 4 3 25 24 21 23 2 22 26 WR A0 A1 A2 A3 A4 A5...

Page 220: ...12 13 IC30 1 2 IC26 6 5 13B5 1 10W4 7K R192 1 2 1 10W68 R190 1 2 02CZ3 3X D18 K A IC26 9 8 D17 1SS184 A2 A1 K 1 10W4 7K R152 1 2 1 10W4 7K R87 2 1 R104 1 10W4 7K 1 2 1 10W3 3K R191 1 2 1 10W330 R46 1 2 2SA1428Y Q1 E C B VDD RN2401 Q9 C E B RN1401 Q11 E C B 4 7 16 C4 2 1 GND 1 10W22K R103 1 2 R153 1 10W22K 1 2 0 1 25 C65 1 2 IC18 1 2 IC26 11 10 IC32 6 5 4 1A7 1A1 GND 1A3 1A5 3C1 VDD GND 11B3 2E1 3B...

Page 221: ...0B5 IC46 1 16 13 12 11 14 8 9 10 7 6 5 4 3 2 15 R147 1 2 R148 2 1 R145 1 2 R146 2 1 R142 1 2 R143 2 1 R173 1 2 1 10W4 7K R144 2 1 R177 1 2 R183 2 1 R182 1 2 R176 2 1 R181 1 2 R174 2 1 R139 2 1 R140 1 2 R141 1 10W4 7K 2 1 13E8 13D8 13E8 13C8 13E8 13C8 13D8 13D8 13D8 13E8 13D8 13C8 13D8 13C8 13D8 13C8 13D8 1A4 1A3 12A3 VDD 12C3 GND 2A2 2A2 2A1 11B3 12A3 1A4 VDD 1A6 12D5 1A4 13C8 13C8 6B2 GND GND VDD...

Page 222: ...C23 0 1 25 2 1 0 1 25 C19 1 2 C8 0 1 25 2 1 0 1 25 C44 1 2 C67 0 1 25 2 1 12B8 2A7 2A6 11A3 13A8 4B8 11C5 GND 12C3 1F4 12C3 12D3 12C3 12C3 2A5 2A5 2A5 2A5 11E8 11D8 11D8 11A8 11A8 11A8 11B8 1A7 1A7 1A7 1A7 1A7 1A7 1A6 1A6 11A8 11A8 11A8 11A8 1E5 1E5 1E5 1E5 11D8 11B5 11C5 2A5 1A8 1A8 1A8 11C3 2A7 2A7 11E4 11B5 2A5 13D5 3C8 1E6 11B3 1S1834 D3 A K 1S1834 D1 K A R4 1 2 2W100 R3 2 1 R6 1 2 2W100 R5 2 ...

Page 223: ...10W1K 1 2 1 2W2 2K R7 1 2 11D5 1 10W3 9K R49 1 2 1F5 1F5 1F5 1F4 VDD 1 10W330 R50 1 2 1F2 11E8 11B3 11D8 11D8 11D8 11D8 GND 8A8 12B3 GND 11E5 11E5 11E5 IC39 6 7 8 3 15 13 9 16 14 11 5 4 1 2 10 1S1834 D2 K A D12 1S1834 A K 1S1834 D11 K A D10 1S1834 A K 1S1834 D9 K A D8 1S1834 A K 1S1834 D7 K A D5 1S1834 A K 1S1834 D6 K A 1S1834 D4 A K Q6 RN2401 C E B RN2401 Q10 B E C 1 10W1K R1572 1 1 10W3 3K R1562...

Page 224: ... GND 10A4 9D8 9D8 9D8 9D8 10A8 10A8 10B8 10B8 2F4 1A4 9A8 9B8 9B8 9C8 9C8 9C8 9C8 2A1 1A6 2F4 2A1 2A2 2A2 10C4 8B1 5E1 1F4 8A8 1E6 VDD 9A4 7D8 2F3 9C4 GND 9D4 9A8 2F4 2E8 9E4 2A5 1A4 VDD 10D8 10C8 10D8 2A6 2A6 2A6 2A4 2A4 1A3 2A4 2E5 GND 1C1 1A1 1A3 2F4 1C2 1E6 9B4 9C4 9A4 9D4 LELTH TNRMOT 24V RGTCLTCS 24V EXTFAN0 BTMFAN MMOT BRK MPLL OK SGE EXPPWM FMOT REF PNLRST SCRPSOL SGD BZON PLTNSW 24V 5VD D...

Page 225: ... 2F3 5D1 8A8 8A8 9E4 9E4 8A8 9E4 8A8 9E4 VDD 5B1 5B1 5B1 4C8 4C8 5C1 5C1 5B1 5B1 4C8 4C8 4D8 5E1 5E1 5D1 5E1 4D8 5D1 5D1 7D1 1E5 8E5 12A3 1A6 1A6 1A6 2F4 1E5 1A8 1A2 1E6 1A3 1A2 1E6 1A3 1A2 1E6 1A2 1A2 1A3 4D8 22 50 C6 2 1 2E7 1A4 SGE 24VF SSR 24V AESIN OPTFAN1 APSC APST MACK S SRXD RGTCLTCL DG STXD S CNT MREQ S SREQ SACK MACK DF DFTXD DFRXD DF CNT MREQ DF DFREQ DFACK APSF APS2 APS1 APS0 SIZCU3 SS...

Page 226: ...25 3 1 2 IC25 C100 0 1 25 2 1 C64 0 1 25 2 1 C72 0 1 25 2 1 C47 0 1 25 2 1 C88 0 1 25 2 1 0 1 25 C48 2 1 C61 0 1 25 2 1 0 1 25 C49 2 1 C87 0 1 25 2 1 C80 0 1 25 2 1 C86 0 1 25 2 1 C55 0 1 25 2 1 0 1 25 C68 2 1 0 1 25 C63 2 1 C45 0 1 25 2 1 0 1 25 C71 2 1 0 1 25 C56 2 1 C69 0 1 25 2 1 0 1 25 C81 2 1 0 1 25 C85 2 1 0 1 25 C51 2 1 0 1 25 C42 2 1 C58 0 1 25 2 1 0 1 25 C60 2 1 C43 0 1 25 2 1 0 1 25 C16...

Page 227: ...13 8 9 GND 20M X2 3 1 2 5C6 5C8 5F2 IC12 3 4 IC15 10 11 3D2 4D2 5B2 4D4 3E2 2A8 R42 1 10W4 7K 1 2 R44 1 10W4 7K 2 1 1 10W4 7K R31 1 2 D2 K A D3 A K 1SS193 D8 K A GND R10 1 2 R11 2 1 R12 1 2 R14 2 1 R15 2 1 R16 1 2 R17 2 1 R13 1 10W10K 1 2 IC8 10 11 R23 1 2 R24 2 1 R25 1 2 1 10W10K R26 2 1 R27 1 2 R28 2 1 R29 1 2 R30 2 1 2C1 3A2 VDD RM3 4 7K 1 5 2 3 4 C23 2200P 50 2 1 2200P 50 C17 1 2 2200P 50 C26 ...

Page 228: ... 24 15 5 27 10 7 25 IC4 69 68 85 84 83 81 78 77 76 74 71 70 100 99 11 10 6 7 8 12 3 4 5 13 46 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 64 87 86 90 89 98 97 96 95 88 63 65 66 67 44 43 41 39 38 37 36 35 34 33 32 31 30 94 93 92 91 42 40 47 45 9 72 73 75 82 29 GND VDD 3B2 1A2 IC12 5 6 5E8 IC6 8 9 5E8 5E8 IC12 8 9 IC12 11 10 5E8 L2 2 1 IC12 12 13 L6 1 2 ...

Page 229: ... 11 12 13 WE M71256 SRAM32KX8 1E6 2A1 1A7 1A2 1E3 1A2 1E3 1E4 VDD VDD SKT 100 IC11 20 2 1 10 12 13 14 15 16 17 18 3 4 5 6 7 8 9 19 31 29 28 27 26 25 24 23 39 38 37 36 35 34 33 32 22 21 SKT 100 IC10 20 2 1 10 12 13 14 15 16 17 18 3 4 5 6 7 8 9 19 31 29 28 27 26 25 24 23 39 38 37 36 35 34 33 32 22 21 20 IC9 22 20 19 17 18 16 11 13 12 8 9 4 21 23 2 26 1 3 6 24 15 5 27 10 7 25 1 10W470 R49 2 1 R52 1 1...

Page 230: ... R46 1 10W4 7K 1 2 R47 1 10W680 1 2 IC17 7 4 3 8 1 2 9 2SA1428Y Q3 E C B 100 16 C4 2 1 2A8 5B6 5E2 1E4 1E4 47 16 C6 2 1 VDD 1E3 47 50 C3 2 1 1A2 IC15 6 5 0 1 25 C39 2 1 IC15 3 4 Q2 2SA1428Y B C E IC6 13 12 Q1 2SA1428Y B C E C21 0 1 25 1 2 C1 47 16 1 2 5E4 5F4 1E4 R48 1 10W680 2 1 5B6 5D8 0 1 50 C38 2 1 E1 2 1 5B6 C12 0 1 50 1 2 IC14 4 11 8 9 10 IC14 4 11 1 2 3 IC14 5 6 7 11 4 5B6 5E2 5D8 GND VDD I...

Page 231: ...1 1A2 1A1 GND VDD 4E4 4F4 1E5 1E5 1E6 1E6 1E6 1E6 1E6 1E6 VDD 1A1 1A1 1A1 1A2 4F4 4C2 4B2 4E4 1A5 1B4 1B4 1B4 1B4 1B4 1B4 1B4 1B4 1E6 1E6 1E6 1E6 1E6 2B8 2B8 2A8 2A8 2B8 2B8 2B8 2B8 4A7 4C7 2C8 VDD 0 1 25 C22 1 2 47 16 C5 2 1 0 1 25 C28 2 1 0 1 25 C14 2 1 GND KEY1 KEY2 LGC SGD LGC VEE 75902 1351F0A 71256S 71256S 27C240 27C240 HC14 7407 7407 7407 7407 LCD CTR TOUCH PNL TOUCH PNL SCN2 SCN3 LELTH1 PA...

Page 232: ...28 3 2 27 4 29 0 1 50 C1 2 1 C4 33P 50 2 1 33P 50 C3 1 2 C5 33P 50 2 1 1K R12 2 1 100 R6 2 1 R4 100 1 2 100 R2 2 1 R17 100 1 2 100 R16 2 1 R9 100 1 2 100 R8 2 1 R5 100 1 2 100 R3 2 1 R7 100 1 2 100 R14 2 1 R15 100 1 2 100 R1 2 1 GND 1K R10 2 1 R13 1K 1 2 3B4 3B4 3B4 R11 1K 1 2 3B4 1K R21 2 1 3B4 LTL16KG LP1 K A LP2 LTL16KG A K LTL16KG LP3 K A LP4 LTL16KG A K LTL16KG LP5 K A LP6 LTL16KG A K LTL16KG...

Page 233: ... 4 3 S7 B3F 1000 2 1 4 3 B3F 1000 S8 3 4 1 2 S9 B3F 1000 2 1 4 3 B3F 1000 S10 3 4 1 2 S11 B3F 1000 2 1 4 3 B3F 1000 S12 3 4 1 2 S13 B3F 1000 2 1 4 3 B3F 1000 S14 3 4 1 2 B3F 1000 S15 3 4 1 2 B3F 1000 S16 3 4 1 2 S17 B3F 4000 2 1 4 3 B3F 1000 S18 3 4 1 2 S19 B3F 1000 2 1 4 3 B3F 1000 S20 3 4 1 2 B3F 1000 S21 3 4 1 2 S22 B3F 1000 2 1 4 3 S23 B3F 1000 2 1 4 3 S24 B3F 1000 2 1 4 3 S25 B3F 4000 2 1 4 3...

Page 234: ...GRAM 14 3 Control Key 1 Circuit PWA KEY1 CN8 LGC CN12 53325 8V J69 8 1 2 3 4 5 6 7 1A2 GND VDD 1B2 1B2 1B2 1B2 2E7 2D2 2D2 2C2 2C2 2B2 2B2 2A2 2A2 2E7 2E7 2E7 J70 53325 12V 12 1 9 8 7 6 5 4 3 2 10 11 DSPON0 SGD LELTH0 LERST LECLK LEDAT SCN7 SCN6 SCN5 SCN4 SCN3 SCN2 SCN1 SCN0 RETK15 RETK14 RETK13 RETK12 DSPON0 LELTH0 LERST LECLK LEDAT SCN7 SCN6 SCN5 SCN4 SCN3 SCN2 SCN1 SCN0 RETK15 RETK14 RETK13 RET...

Page 235: ...13 8 6 7 9 10 11 12 14 15 16 17 19 20 21 22 24 25 5 26 28 3 2 27 4 29 0 1 50 C1 2 1 C4 33P 50 2 1 33P 50 C2 1 2 C5 33P 50 2 1 1K R7 2 1 GND 1K R5 2 1 R8 1K 1 2 1 2 1 2 1 2 R6 1K 1 2 1 2 1K R3 2 1 3B4 C3 33P 50 1 2 100 R20 2 1 R21 100 1 2 100 R22 2 1 R19 100 1 2 100 R18 2 1 R17 100 1 2 R16 100 1 2 R15 100 1 2 R14 100 1 2 R13 100 1 2 R12 100 1 2 R11 100 1 2 R10 100 1 2 R9 100 1 2 LTL16KG LP2 K A LP3...

Page 236: ...D E F A B C D E F 2 3 14 ELECTRIC CIRCUIT DIAGRAM 14 4 Control Key 2 Circuit PWA KEY2 3C4 3C4 3C4 3C4 RETK12 RETK13 RETK14 RETK15 RETK12 RETK13 RETK14 RETK15 SWAA SWAA SWAA SWAA SWAA SWAA 3C4 3C4 B3F 1000 S1 3 4 1 2 S2 B3F 1000 2 1 4 3 S3 B3F 1000 2 1 4 3 B3F 1000 S4 3 4 1 2 B3F 1000 S5 3 4 1 2 B3F 1000 S6 3 4 1 2 SCN3 INT P S SCN8 SCN3 SCN8 PHOTO E D AUTO E U ...

Page 237: ...B C D E F 3 3 14 ELECTRIC CIRCUIT DIAGRAM 14 4 Control Key 2 Circuit PWA KEY2 CN6 CN10 LGC LGC 2B2 2C7 2C7 2C7 2C7 1 2 1 2 1 2 1 2 1A2 1E3 1E3 VDD GND 2A2 53325 6V J72 1 2 3 4 5 6 53325 10V J71 1 10 9 8 7 6 5 4 3 2 RETK15 RETK14 RETK13 RETK12 LELTH1 LERST LECLK LEDAT SGD DSPON1 TH TH SCN8 SCN3 RETK15 RETK14 RETK13 RETK12 LELTH1 LERST LECLK LEDAT DSPON1 TH TH SCN8 SCN3 ...

Page 238: ...Nov 1997 TOSHIBA 14 25 4560 4570 CIRCUIT DIAGRAMS 14 5 Power Supply Circuit PS ACC A 115V ...

Page 239: ...4560 4570 CIRCUIT DIAGRAMS 14 26 Nov 1997 TOSHIBA B 230V ...

Page 240: ...24VA C K L DC voltages are turned ON Each of these power circuit is provided with overcurrent protection fuses excluding 5V and an overcurrent protection unit is provided in the circuit to protect the copier s power circuit in case of an overload or a power output short When these functions are in operation remove the cause of the overload or short When a fuse has blown replace the fuse Or when ov...

Page 241: ...M6 12 18 toner motor M9 F7 document motor M11 transport clutch CLT1 feed clutch CLT4 7 total counter Developer unit fan M19 high voltage power supply 24VD E PFP pedestal 24VI ADU F9 24VJ LCF 24VF RADF F4 24VG Sorter F5 24VH Reset switch main switch drive remote monitoring F6 24VK Aligning motor M17 Transport motor M16 F8 24VL A DC voltage check DC output voltages can be checked on the following co...

Page 242: ...ltage 2 Lamp regulator voltage 3 Damp heater voltage 15 5 Output Sequence Reg 1 Option 24V Zero cross Reg 2 Copier 24V AC input 5V ACOFF 21 6V or more 21 6V or more 10ms 120ms 4 75V or more 0 200ms 21 6V or more 21 6V or more 4 75V or more 20ms or more 10ms or more 500ms or less ...

Page 243: ...Nov 1997 TOSHIBA 16 1 4560 4570 PC BOARD 16 PC BOARD ASSEMBLY 16 1 PWA LGC ...

Page 244: ...4560 4570 PC BOARD 16 2 Nov 1997 TOSHIBA 16 2 PWA PNL ...

Page 245: ...Nov 1997 TOSHIBA 16 3 4560 4570 PC BOARD 16 3 PWA KEY1 16 4 PWA KEY2 ...

Page 246: ...4560 4570 PC BOARD 16 4 Nov 1997 TOSHIBA 16 5 PWA ERS ...

Page 247: ...Nov 1997 TOSHIBA 16 5 4560 4570 PC BOARD 16 6 PS ACC A 115V ...

Page 248: ...4560 4570 PC BOARD 16 6 Nov 1997 TOSHIBA B 230V ...

Page 249: ...Nov 1997 TOSHIBA 16 7 4560 4570 PC BOARD 16 7 PS HVT ...

Page 250: ... 2 J523 4 J526 3 J524 1 J523 2 J523 1 J521 J522 1 Breaker 100V 15A 200V 10A Main SW Thermostat Fuse 1A Lamp regulator Exposure lamp Thermofuse Heater lamp Thermostat 1 Fuse 100V 10A 200V 6 3A Main SW 17 WIRE HARNESS CONNECTION DIAGRAM 17 1 AC Wire Harness Door SW Relay 1 1 Parts inside the switching power supply 1 1 Copier 24V Motor clutch high voltage etc Door SW Option 24V 5V DF Sorter RMS etc T...

Page 251: ...1 2 3 10 10 6 2 2 6 9 J62 J60 7 6 4 3 2 J72 6 4 3 5 J71 10 8 9 1 5 2 1 GND PWA PNL PWA KEY2 PWA KEY1 PWA LGC 24V TNRMOT DG ATS IN 24V DEVSW GND ATSVREF GND VDD 24V FEDCLTSF SFBSW BZON GND PRXD PREQ PERR PACK MERR P MACK P PTXD GND MREQ P CTR CNT CTR ON VDD VDD 24V GND 5VD 5VD GND SGD PNLRST SCRPSOL SGD 24V 1 2 4 5 3 6 8 7 9 12 10 11 13 14 J1B 1 2 5 6 4 3 7 9 10 8 J18 1 2 4 5 3 6 8 9 7 10 13 11 12 ...

Page 252: ... 10 12 13 11 14 J67 1 3 4 1 2 3 6 J68 GND VOP VEE GND VDD UD3 UD2 UD1 UD0 LCDENB XSCL LP WF YD CCFL RETKO SCN10 SCN9 SCN8 SCN7 SCN6 SCN5 SCN4 SCN3 SCN2 SCN1 SCN0 RETK11 RETK10 RETK9 RETK8 RETK7 RETK6 RETK5 RETK4 RETK3 RETK2 RETK1 CCFL 12 7 8 9 2 6 10 2 J66 14 13 11 10 12 9 7 8 6 5 4 2 3 1 4 5 J77 ...

Page 253: ... R 18 24V 19 EXIT1 FAN 20 24V T FULL SW OPT1 FAN R J2B J103 J121 J201 2 2 1 1 OPT2 FAN R J209 12 1 6 6 1 11 2 5 5 2 10 3 4 4 3 9 4 3 3 4 8 5 2 2 5 7 6 1 1 6 6 7 6 6 7 5 8 5 5 8 4 9 4 4 9 3 10 3 3 10 2 11 2 2 11 1 12 1 1 12 2 1 13 1 2 14 6 1 3 1 5 2 2 2 4 3 1 3 3 4 3 4 2 5 2 5 1 6 1 6 3 7 2 1 8 9 10 11 12 13 14 24V LNSD LNSC LNSB LNSA 24V 24V MRRD MRRC MRRB MRRA 24V DRMTH GND GND LNSSW VDD GND MRRS...

Page 254: ... HTRTH 7 HTRTH2 8 10 11 HTRTH2 9 SSR J270 6 5 4 3 6 5 4 3 2 1 2 1 J312 1 2 3 4 1 2 3 4 5 6 5 6 THMS1 THMS2 1 BIASVREF 2 HVMVREF 3 HVTM 4 HVTPRE 5 HVACVREF 6 HVTAC 7 HVTVREF 8 HVTDC PS HVT PS ACC J534 10 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10 10 9 8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1 J7 J222 J511 6 6 1 SCNB 5 5 2 24V 4 4 3 SCND 3 3 4 SCNA 2 2 5 24V 1 1 6 SCNC 6 6 7 DCMO 5 5 8 DCMB 4 4 9 DCMC 3 3 10...

Page 255: ...MPCL 10 6 2 11 VDD 11 5 1 12 FEDCLTCL 12 4 1 13 24V 13 3 2 1 2 14 TRMCLA 14 2 2 15 TRMCLB 15 1 1 2 1 16 24V 2 2 17 RGTCLTCU 24V RGTCLTCL 1 1 18 19 20 FED2 CLT EMP2 SW T UP2 SW SIZE2 SW T UP2 MOT RGT2 CLT J8B J115 J116 J117 J211 J547 J213 2 2 1 1 RGT1 CLT J217 J234 1 SGE 6 2 5VE 5 3 ACOFF 4 4 ZCINT 3 5 SSR 2 6 SSR 1 1 24V 5 2 24V 2 3 24V 1 4 5 DG 4 6 DG 3 1 24V 11 2 DG 12 J10 J531 PS ACC J529 J532 ...

Page 256: ...AMOT BRK 9 3 AMOT OFF 8 4 FDCLT AD 7 5 STCLT AD 6 6 STSOL AD 5 7 ENDM D 4 8 ENDM B 3 9 ENDM C 2 10 ENDM A 1 J14A J235A J14B J235B 4 3 2 1 J235 PS ACC J535 ADF SORTER ADU PWA LGC J235 Power Source Pins 19 19 1 GND 5 18 18 2 VDD 4 17 17 3 APS0 3 16 16 4 APS1 2 15 15 14 14 13 13 5 APS2 1 12 12 8 GND 11 11 9 VDD 10 10 9 9 10 11 APSC GND 6 VDD 7 APSF 8 8 1 OPTFAN1 7 7 2 24V 6 6 3 24V 5 5 4 AESIN 5 GND ...

Page 257: ... DRV6 23 7 DRV5 22 8 DRV4 21 9 CLK D 20 10 CLK C 19 11 SIZE 0 18 12 SIZE 2 17 13 PFPRST 16 14 5VSW 15 1 SCSW E 14 2 SIZE 3 13 3 SIZE 1 12 4 RETS 0 11 5 RETS 1 10 6 RETS 3 9 7 RETS 2 8 8 SCSW D 7 9 SCSW C 6 10 RETS 7 5 11 RETS 6 4 12 RETS 5 3 13 RETS 4 2 14 PMOT REF 1 J16A J16B J248 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J241 PFP LCF 1 24V 2 CTRON 3 CTR CNT 4 ZMDTCT 5 ENABLE 6 ERROR 7 A3DTCT 8 VDD 9 GND ...

Page 258: ...W 14 VDD 16 GND 17 VDD 19 AD3 18 AD1 20 AD5 21 AD7 22 I O1 23 J21 25 I O7 26 GND I O3 27 OE 28 RESET 24 I O5 29 VDD 30 GND PWA LGC 1 FMOT REF 6 2 VDD 5 3 FMOT DIR 4 4 FPLL OK 3 5 FMOT BRK 2 6 FMOT ON 1 7 GND 5 2 24V 6 1 RGTA 4 3 RGTC 3 4 RGTB 1 6 RGTD 2 5 24V 2 ACCFAN 1 24V FEED MOT J22 J549 J550 J23 J24 RGT MOT 1 2 3 4 PS ACC J529 ...

Page 259: ... Speed Approx 45 originals minute A4 or Letter side feeding when installed on the 4560 Acceptable Original Size Minimum A5 R or Statement R Personal check Maximum A3 or Ledger Paper weight 60 90 g m2 16 24 lb Power Source Supplied from the copier Power Consumption 60W Dimensions W597 x D494 x H120 W23 5 x D19 4 x H4 7 Weight Approx 9 5 Kg or 20 9 lb Specifications are subject to change without not...

Page 260: ...am access cover Size sensor Feed cover switch ADF set switch Transport unit Transport belt Belt rollers Belt holding rollers Reversing unit Reversing roller Exit sensor Exit roller Exit cover switch Exit cover Tray Tray Side guide Fold out holder Control section PC board Other Cover Hinges Jam access cover Feed unit Transport unit Control section Original feed tray Cover Exit cover Original exit a...

Page 261: ...ection diagram Separation pad Jam access cover Empty sensor Separation plate Pick up roller Original feed tray Exit sensor Exit roller Belt holding roller Belt holding roller Belt drive roller Belt roller Reversing roller Transport belt Feed roller Aligning roller Aligning sensor Size sensor Brush ...

Page 262: ...rection When feed clutch is ON 3 Aligning roller stops 4 Rotates in transport belt CW direction When transport clutch is ON 5 Rotates in reversing roller CCW direction When transport clutch is ON 6 Exit roller stops 7 Weight falls 8 Flapper rises When transport clutch is ON Rear side Front side 3 C Free Transport clutch Drive motor Feed clutch A B 4 A 3 B 3 7 1 C Free Stop 2 6 8 5 Free Lock Free S...

Page 263: ...tes in aligning roller CCW direction 4 Rotates in transport belt CCW direction When transport clutch is ON 5 Rotates in reversing roller CCW direction When transport clutch is ON 6 Rotates in exit roller CCW direction When transport clutch is ON 7 Weight rises 8 Flapper falls When transport clutch is ON Rear side Front side Lock Free Lock Lock Free ...

Page 264: ...ps A 1 to A 8 B 2in1 original feed Operation from original feed to discharge start of 1st original feed separation aligning transport stop start of 2nd original feed separation aligning splicing transport stop at exposure position copy original discharge is described in steps B 1 to B 10 C Dual side original feed Operation from original feed to discharge start of original feed separation aligning ...

Page 265: ...Turns ON Transport clutch Turns OFF Weight Falls Pick up roller Rotates Feed roller Rotates Aligning roller Stops Transport belt Stops The original is fed for a fixed number of pulses after the aligning sensor turns ON and the motor stops A 3 Drive motor ON original transport to copy glass surface Drive motor Rotates in forward direction Feed clutch Turns OFF Transport clutch Turns ON Aligning rol...

Page 266: ...A4 original wide letter size original wide Drive motor Rotates in reverse direction Feed clutch Turns ON Transport clutch Turns OFF Weight Falls Pick up roller Rotates Feed roller Rotates Aligning roller Stops Transport belt Stops If the original that was fed in A 4step is A4 wide or letter size wide the original on the tray is fed in advance to start two step pre feeding The original is fed for a...

Page 267: ...tops The motor is rotated in the forward direction for a fixed number of pulses and stops A 7 Start of original discharge Drive motor Rotates in forward direction Transport clutch Turns ON Transport belt Rotates in forward direction Reversing roller Rotates Exit roller Rotates Forward rotation of the motor lowers the flapper and the original is discharged A 8 Completion of discharge After a fixed ...

Page 268: ...urns ON Transport clutch Turns OFF Weight Falls Pick up roller Rotates Feed roller Rotates Aligning roller Stops Transport belt Stops The original is fed for a fixed number of pulses after the aligning sensor turns ON and the motor stops B 3 Transport of 1st original to pause position after drive motor ON Drive motor Rotates in forward direction Feed clutch Turns OFF Transport clutch Turns ON Alig...

Page 269: ...after the aligning sensor turns OFF and the motor stops The trailing edge of the 1st original exits the original feed section and is positioned on the original stopper B 5 To alignment of 2nd original Drive motor Rotates in reverse direction Feed clutch Turns ON Transport clutch Turns OFF Weight Falls Pick up roller Rotates Feed roller Rotates Aligning roller Stops Transport belt Stops The origina...

Page 270: ...1st original B 7 Transport to copy glass surface Drive motor Rotates in forward direction Feed clutch Turns OFF Transport clutch Turns ON Aligning roller Rotates Transport belt Rotates in forward direction The aligning sensor turns OFF and the original is transported for a fixed number of pulses B 8 Completion of original feed The original is fed for a fixed number of pulses after the aligning sen...

Page 271: ...N Transport belt Rotates in forward direction Reversing roller Rotates Exit roller Rotates Forward rotation of the motor lowers the flapper and the original is discharged B 10 Completion of discharge After a fixed amount of time has elapsed since the motor stopped the transport clutch is turned OFF to complete original discharge ...

Page 272: ...direction Feed clutch Turns ON Transport clutch Turns OFF Weight Falls Pick up roller Rotates Feed roller Rotates Aligning roller Stops Transport belt Stops The original is fed for a fixed number of pulses after the aligning sensor turns ON and the motor stops C 3 Drive motor ON Original transport to copy glass surface Drive motor Rotates in forward direction Feed clutch Turns OFF Transport clutch...

Page 273: ...e exit sensor turns ON C 5 Original reversal Drive motor Rotates in reverse direction Feed clutch Turns OFF Transport clutch Turns ON Transport belt Rotates in reverse direction Reversing roller Rotates Reverse rotation of the motor raises the flapper and the original is reversed The original is fed for fixed number of pulses and the motor stops C 6 Completion of original feed After a fixed amount...

Page 274: ... Transport belt Rotates in forward direction Reversing roller Rotates Exit roller Rotates Forward rotation of the motor lowers the flapper and the original is discharged C 8 Completion of discharge After a fixed amount of time has elapsed since the motor stopped the transport clutch is turned OFF to complete original discharge ...

Page 275: ...or stored to memory in 3 and 11 When the original is an irregular size or when the original size is different from the size of the original that passed through previously the original size data is transmit ted to the main unit 7 The ORG STP signal is set by the set timing of the ORG STP signal 8 After being driven for a fixed number of pulses after the trailing edge of the original has exited the ...

Page 276: ...ACT signal is reset and the discharge of the final original ends B Dual side original feed operation 1 When the original is placed on the original feed tray the original is detected by the empty sensor and the ORG RDY signal is set 2 When the ORG IN signal is received from the main unit DF ACT is set and original replacement is started When a fixed amount of time has elapsed since the feed clutch ...

Page 277: ...rse direction the motor is stopped and the original is placed at the exposure position When a fixed amount of time has elapsed since the motor stopped the transport clutch is turned OFF and dual side original feed operation ends 18 When the next ORG IN signal is received the DF ACT signal is set and the transport clutch is turned ON After a fixed amount of time has elapsed the motor is driven in t...

Page 278: ...n in the forward direction to feed the 1st original to just before the exposure position At the same time travel size detection is started 5 When the trailing edge of the 1st original exits the aligning sensor travel size detection ends and the original size is detected together with the state of the size width sensor stored to memory in 3 and stored to memory 6 After being driven for a fixed numb...

Page 279: ... transport clutch is turned ON After a fixed amount of has elapsed the motor is driven in the forward direction to start pre discharge operation Pre discharge operation is carried out to completely discharge the discharged original After being driven for a fixed number of pulses the motor is stopped When a fixed amount of time has elapsed since the motor stopped the transport clutch is turned OFF ...

Page 280: ...r clutch Symbol Name Function Remarks EMPS EMP SNS Original detection sensor for originals on original Semiconductor Empty sensor feed tray sensor REGS REG SNS Original detection sensor for aligning Semiconductor Aligning sensor sensor SIZES1 SIZE SNS1 Original width detection sensor 1 Semiconductor Size sensor 1 sensor SIZES2 SIZE SNS2 Original width detection sensor 2 Semiconductor Size sensor 2...

Page 281: ...eed clutch JAMSW Feed cover switch DRVCLU Transport clutch MOT Drive motor SIZE S1 Size sensor 1 EMPS Empty sensor REGS Aligning sensor SIZE S2 Size sensor 2 DFSW ADF set switch EXITS Exit sensor EXITSW Exit cover sensor MOT JAM SW EMPS REGS DFSW EXITSW EXITS SIZE S2 SIZE S1 PASUCLU DRVCLU ...

Page 282: ...SGND CNT ACK1 REQ2 5V 5V Power circuit Rush current preventive circuit Interface circuit CPU PPC PWA F LGC 770 EXIT SW JAM SW EXIT SNS DF SW SIZE SNS2 EMP SNS REG SNS SIZE SNS1 DF SW JAM SW EXIT SW EXIT S SIZE S1 SIZE S2 EMPS REGS RADF ADF Sensor input circuit DRVCLU PASUCLU Driver MOT MOT Driver DRVCLU PASUCLU EEPROM ROM ...

Page 283: ...from the ADF to the copier ACK 1 Communication request response signal from the ADF to the copier ACK 2 Communication request response signal from the copier to the ADF ADFRXD Data sent from the copier to the ADF ADFTXD Data sent from the ADF to the copier Since data transmission between the copier and the ADF ADFRXD and ADFTXD is conducted by means of serial transmission it is not possible to che...

Page 284: ...start of pre feeding 1318 0 96 of 1st original in 2in1 feed Until aligning sensor turns ON after start of pre feeding 1318 0 96 of 2nd original in 2in1 feed Until aligning sensor turns OFF from start of transport by 2620 1 12 aligning roller after aligning during dual side feed Until aligning sensor turns OFF from start of transport by 2620 1 12 aligning roller after aligning 1st original in 2in1 ...

Page 285: ...am is regarded as an aligning sensor retention jam when the above jam pulses are counted The above timer values are the times obtained by subtracting the scan time from the time from start of original feed after joining up to end of resumed of the 2nd original Note 2 Pulses from start of dual side inversion to end of inversion are managed If the exit sensor exit inversion sensor turns ON when the ...

Page 286: ...ating until the aligning sensor is turned off when the trailing edge of the original passes the sensor Since A4 widthwise and A5 lengthwise cannot be distinguished by the length in the feed direction alone the size sensor 1 is used roughly to know the width of the original permitting its size to be determined for A4 widthwise the size sensor 1 is turned on Note that the size sensor 2 is used to di...

Page 287: ...T R 279 4 OFF OFF 290 307 297 210 A4 R 297 0 OFF OFF 308 319 Raw data 210 Irregular size OFF OFF 320 340 330 210 FOLIO 330 0 OFF OFF 341 345 Raw data 210 Irregular size OFF OFF 346 366 356 216 215 9 LG 355 6 OFF OFF 367 Raw data 216 Irregular size ON ON OFF 171 Raw data 257 Irregular size ON OFF 172 192 182 257 B5 182 0 ON ON OFF 193 199 Raw data 257 Irregular size ON ON 200 226 210 297 A4 210 0 O...

Page 288: ...57 Irregular size ON OFF 172 192 182 257 B5 182 0 ON ON OFF 193 199 Raw data 257 Irregular size ON ON 200 226 210 297 A4 210 0 ON OFF 200 226 216 280 279 4 LT 215 9 ON ON OFF 227 353 Raw data 280 Irregular size ON OFF 354 374 364 257 B4 364 0 ON ON OFF 375 413 Raw data 257 Irregular size ON ON 414 426 420 297 A3 420 0 ON OFF 427 442 432 280 279 4 LEDGER 431 8 ON ON OFF 443 Raw data 280 Irregular s...

Page 289: ... YES NO NO YES NO NO NO NO YES YES YES YES YES 4 1 3 2 Power ON Standby Jam All sensors OFF Cover open Empty sensor ON ORG IN signal H level ORG OUT signal H level Standby exit operation Dual side mode 2in1 mode single side feed operation 2in1 feed operation dual side feed operation ...

Page 290: ...inal Fed original present Start of 2in1 feeding 2nd original resumed 2in1 feeding completed Standby Single side feeding mode at previous paper passage Upper side being set Start of reverse feeding Reverse feeding completed Start of pre exit Pre exit completed Start of pre feeding Pre feeding completed Start of single side feeding Single side feeding completed Fed original A4 LT Step feeding possib...

Page 291: ...pre feeding completed no original 2in1 2nd original feeding incomplete no original Not 1st copy Start of pre exit Pre exit completed Start of pre feeding Pre feeding completed Start of dual side feeding Standby Dual side feeding completed Pre feeding completed no original Start of reverse feeding Reverse feeding completed Start of 2in1 feeding 2in1 feeding completed ...

Page 292: ... paper passage Previously fed original A4 LT Start of pre exit Pre exit completed Start of pre feeding 1st original Pre feeding completed 2in1 feeding completed Start of 2in1 feeding 1st or 2nd original resumed 2in1 2nd original feeding incomplete no original Upper surface being set Start of reverse feeding Reverse feeding completed Feeding of 2nd original possible Start of pre feeding 2nd origina...

Page 293: ...ransport clutch ON Pre feeding control Feed clutch OFF Feed clutch ON Transport clutch ON Transport clutch OFF Fixed time delay Start of motor reverse drive Aligning sensor ON Motor stopped Fixed time delay Feed clutch OFF Fixed time delay Pre feeding completed Fixed number of pulses counted ...

Page 294: ... NO YES NO NO Transport clutch ON Two step pre feeding control Feed clutch ON Feed clutch OFF Transport clutch ON Transport clutch OFF Fixed time delay Start of motor forward drive Motor stopped Fixed time delay End of two step pre feeding Fixed number of pulses counted ...

Page 295: ...Nov 1997 TOSHIBA 18 37 4560 4570 RADF G Exit operation YES YES YES NO NO NO 4 Upper side being set Start of reverse feeding Reverse feeding completed Start of final exit Final exit completed Standby ...

Page 296: ...ed clutch OFF Transport clutch OFF Transport clutch ON Fixed time delay Start of motor forward drive Aligning sensor OFF Motor stopped Fixed time delay Transport clutch OFF Fixed time delay End of single side feeding Fixed number of pulses counted Single side feeding control H Single side feeding control ...

Page 297: ...ch ON Feed clutch OFF Transport clutch OFF Transport clutch ON Fixed time delay Start of motor forward drive Aligning sensor OFF Exit sensor ON Motor stopped Motor stopped Fixed time delay Transport clutch OFF Fixed time delay End of dual side feeding Fixed time delay Start of motor reverse drive Fixed number of pulses counted Fixed number of pulses counted ...

Page 298: ...lutch ON Feed clutch OFF Transport clutch OFF Transport clutch ON Fixed time delay Start of motor forward feeding Exit sensor ON Motor stopped Motor stopped Fixed time delay Transport clutch OFF Fixed time delay End of reverse feeding Fixed time delay Fixed number of pulses counted Start of motor reverse feeding Fixed number of pulses counted ...

Page 299: ... control 1st original Feed clutch ON Feed clutch OFF Transport clutch OFF Transport clutch ON Fixed time delay Start of motor forward drive Aligning sensor OFF Motor stopped Fixed time delay Feeding of 2nd original possible Feed clutch ON Transport clutch OFF Fixed time delay End of 2in1 feeding 1st original Fixed number of pulses counted ...

Page 300: ... 6 Transport clutch ON Start of 2nd original feeding Feed clutch ON Feed clutch OFF Transport clutch ON Transport clutch OFF Fixed time delay Aligning sensor OFF Fixed number of pulses counted Motor stopped Fixed time delay Start of motor forward drive start of original joining ...

Page 301: ...ed time delay Aligning sensor ON A4 LT or smaller Transport clutch OFF Fixed time delay End of 2in1 feeding 2nd original Aligning sensor OFF A4 LT or smaller Reset pulse count Motor stopped Fixed time delay Fixed number of pulses counted End of fixed number of pulse counting Start of motor forward drive start of 2nd original feeding ...

Page 302: ...lutch ON Feed clutch OFF Transport clutch OFF Transport clutch ON Fixed time delay Aligning sensor ON Aligning sensor OFF Fixed number of pulses counted Motor stopped Fixed time delay Start of motor forward drive start of 2nd original re feeding Start of motor forward drive start of 2nd original re feeding ...

Page 303: ...sport clutch OFF Pre exit control Feed clutch ON Feed clutch OFF Transport clutch OFF Transport clutch ON Fixed time delay Motor stopped Feed clutch ON Transport clutch OFF Fixed time delay End of pre exit Fixed number of pulses counted Start of motor forward drive start of pre exit ...

Page 304: ...port clutch OFF Final exit control Feed clutch ON Feed clutch OFF Transport clutch OFF Transport clutch ON Fixed time delay Motor stopped Transport clutch OFF Fixed time delay End of final exit Start of motor forward drive Fixed number of pulses counted Exit sensor turned OFF by final original ...

Page 305: ...N OFF OFF ON 0 10 0 10 0 10 0 10 0 01 0 01 0 01 0 40 0 40 0 01 0 40 0 40 0 01 0 01 0 01 1 19 1 12 1 19 1 40 0 02 0 57 0 02 0 04 0 74 1 25 1 98 2 20 0 01 0 47 1 27 0 02 0 47 0 06 1 13 1 10 0 60 1 39 1 89 0 61 1 00 0 01 0 64 1 34 1 92 0 57 1 03 0 69 1 30 2 21 0 52 1 32 0 52 0 01 1 18 0 48 1 13 1 76 0 35 0 87 0 35 0 17 0 27 0 18 0 21 0 91 0 55 0 57 Exposure time Exposure time Exposure time Exposure t...

Page 306: ... PRE FED 0 0 0 CW OFF CCW OFF ON OFF ON ON OFF ON OFF OFF ON 0 10 0 10 0 10 0 01 0 01 0 01 1 78 1 82 0 01 0 01 1 20 1 48 1 51 0 05 0 74 1 57 0 06 1 05 1 89 1 14 0 06 0 39 0 59 0 51 0 90 0 01 0 62 0 45 0 94 0 68 1 62 0 01 0 45 0 99 1 94 0 01 1 19 0 47 1 45 0 78 1 76 1 65 0 25 1 67 0 25 0 92 Exposure time Exposure time Exposure time changes with copy machines equipped with the RADF ...

Page 307: ... 1 19 1 73 1 73 0 01 0 01 0 01 0 01 0 01 0 01 2 54 2 98 3 88 4 27 0 06 1 33 2 19 3 19 0 06 0 63 0 05 1 88 0 89 0 26 0 06 0 06 1 13 1 80 1 85 0 68 3 05 1 94 0 63 1 48 1 45 2 05 2 09 3 25 4 36 1 80 0 69 0 01 0 37 0 31 0 75 0 78 2 14 1 45 4 41 0 01 0 01 0 01 1 86 0 84 0 31 3 11 0 01 1 18 3 13 3 78 1 93 2 58 0 57 1 23 1 18 1 68 1 83 1 34 0 62 1 28 2 48 0 57 1 22 0 57 0 91 Exposure time Exposure time E...

Page 308: ... 1 20 1 40 0 01 0 01 0 01 0 01 0 01 1 40 0 01 2 56 2 99 3 79 4 22 0 05 1 33 2 13 3 12 0 06 0 30 0 05 1 89 0 90 0 26 0 06 0 06 1 13 1 47 0 36 3 06 1 95 0 30 1 48 1 45 1 99 2 01 3 16 4 29 1 47 0 36 0 01 0 37 0 31 0 75 0 79 2 07 1 45 4 34 0 01 0 01 0 01 1 52 0 85 0 31 3 12 0 01 1 53 1 19 3 06 4 04 1 86 2 84 0 24 1 22 1 52 1 69 1 84 1 02 0 63 1 62 2 82 0 25 1 23 0 25 0 91 Exposure time Exposure time E...

Page 309: ...10 0 10 0 10 0 01 0 01 0 01 2 29 2 34 0 01 0 01 1 21 2 46 2 49 2 49 2 29 1 20 1 23 0 04 0 63 1 09 1 21 1 78 1 81 1 15 1 88 2 02 2 09 0 05 1 13 1 87 1 72 1 94 2 40 2 45 2 28 0 06 1 16 0 66 0 51 0 01 0 01 0 54 0 53 0 57 1 24 1 66 1 62 1 18 0 60 1 15 2 06 2 60 2 55 0 62 1 18 1 91 0 01 1 21 0 39 1 021 65 2 43 0 41 1 50 1 04 0 84 2 20 0 16 0 93 0 27 Exposure time Exposure time Exposure time changes wit...

Page 310: ...ptical current flowing through PT1 in creases causing the voltage at IC14 pin 6 to increase due to voltage drop by R52 IC14 is an op amp and comprises a voltage comparator circuit It compares the reference voltage applied to pin 5 non inverting input terminal and the signal voltage at pin 6 inverting input terminal When the voltage at pin 6 is higher the output IC14 pin 7 becomes L level Conversel...

Page 311: ...consumption for the 5V line is approx 80 mA or less the power loss is compensated for by R65 and IC9 but when the consumption current value exceeds 80 mA the input voltage at IC9 pin 1 decreases due to voltage drop in R65 When the emitter voltage of Q13 becomes 0 6V lower than its base voltage Q13 starts conducting and by making excess current flow through R64 shares a part of the power loss In th...

Page 312: ... excitation pattern signals from the CPU PMA1 2 PMB1 2 The PWM signal output from the CPU PWMMOT is divided and integrated by R58 R57 and C11 and converted to a fixed voltage After conversion this fixed voltage is input to IC2 pins 9 and 11 to set the motor current value Any motor current value is obtained by varying the duty of the PWM signal Excitation pattern 2 phase excitation 18 11 3 Pulse mo...

Page 313: ...R3 becomes equal to the voltage across both terminals of R02 When the voltage is equal output S is inverted and becomes L level so motor coil current iON increases to the voltage level of R02 again In this way the motor current is turned ON OFF that is current chopping operation is repeatedly carried out The same operation is carried out for other phases Motor rotation amount input circuit This ci...

Page 314: ...e OFF and IC11 pin 5 becomes H level At this time as base current is not supplied to Q2 and the circuit is OFF Q5 becomes OFF and the current flows through R37 On the other hand when the cathode of ZD2 exceeds 16 V base current flows to Q3 and the circuit becomes ON After a delay according to the time constant of R2 and C35 IC11 pin 5 becomes L level For this reason base current is supplied to Q2 ...

Page 315: ...ever when a power OFF or an error causes the 5 V power supply to drop to 4 2 V or less IC3 pin 8 becomes L level to reset the CPU and stop system operation During normal operation a clock of fixed cycle is input to IC3 pin 3 from the CPU to clear the watchdog timer built into IC3 However if a system error causes the clock from the CPU to stop being input IC3 pin 8 becomes L level to reset the CPU ...

Page 316: ... out on the 3 lead serial interface Once data is stored to EEPROM it is held in memory and does not disappear even if the power is turned OFF IC7 pin 1 is the chip select terminal and is H level during data manipulation IC7 pin 2 is the serial clock terminal Serial data is transmitted synchronized with the clock input to this terminal IC7 pin 3 is the serial data input terminal and pin 4 is the se...

Page 317: ...nications input circuit for the main unit PPC 1 indicates 5 V and 0 indicates 0 V Connector logic and CPU input port logic are the same 18 12 2 ACK1 REQ2 ADFTXD signals This is the communications input circuit for the main unit PPC 1 indicates 5 V and 0 indicates 0 V Connector logic and CPU output port logic are the same ...

Page 318: ...o original Original detected connector connector voltage 2 V or more voltage less than 2 V SIZES1 size sensor 1 Original detected No original SIZES2 size sensor 2 Original detected No original EXITS exit sensor No original Original detected connector connector voltage 2 V or more voltage less than 2 V This is the input circuit from the photosensors The following tables show the signal logic ...

Page 319: ...and rotation direction is controlled by inputting the pulse motor drive excitation pattern signals to PMA1 2 and PMB1 2 The motor current is set by inputting the PWM signal to PWMMOT 18 12 5 Clutch output circuit This is the drive circuit of the electromagnetic clutch The clutch is turned ON when the input signal is 0 0 V in any case ...

Page 320: ...n switch input circuit When all of the three reed switches are ON the relay coil is excited and 24 V power is supplied to the drive circuit The voltage of CN13 1 is 0 V when the three reed switches are ON and 24 V when one of the reed switches is OFF ...

Page 321: ...ansport unit 1 Remove the four clips holding the transport unit 2 Pull out the upper part front side of the trans port unit toward you to disengage the belt for driving Belt Transport unit Clip Note After fixing the clip move the knob section to the side of the frame ...

Page 322: ...ension plate toward you to loosen the transport belt 4 Remove the transport belt Note During reassembly the edge of the trans port belt should be inside the side frame of the transport unit After reassembly check that the belt is not deviated to one side should be on the center Belt tension plate Rear side Front side Belt tension plate Transport belt Transport belt Frame Frame ...

Page 323: ... There is no need to remove the rub ber roller Note During the replacement of the belt hold ing roller never remove the side frame of the transport unit Do not remove the screws which are fastening the side frame except when replacing the side frame Brush 1 Remove two screws and take out the brush holding bracket 18 13 4 Original feed tray 1 Remove two M4 screws and take out the tray in an upward ...

Page 324: ...sconnect one connector at the rear and re move two screws then move the ADF unit to ward the rear to take it out in an upward direc tion 3 Place the entire unit upside down and remove the transport unit and the cover 3 screws Note M4 8 4 Remove five connectors from the PC board ADF unit Cover ...

Page 325: ...BA 18 67 4560 4570 RADF 6 Remove seven screws and take out the feed unit Note M4 12 6 pieces PTBR M4 8 1 piece A BID 5 Open the jam access cover and loosen the one screw Jam acces cov A Feed unit Front side Rear side ...

Page 326: ...rts 18 13 6 Drive motor 1 Loosen the one screw holding the timing belt tensioner 2 Disconnect the one connector of the motor Note Do not remove the spring hooked on the belt tensioner Drive motor Connector Spring Band B 18 13 7 Electromagnetic clutch 1 Remove one harness band one spring and three screws Note One of the three screws is shorter M3 4 B ...

Page 327: ...aken out 18 13 8 Jam access cover 1 Remove the feed unit 2 When two shouldered screws front and rear are removed the jam access cover can be taken out Clutch Claw Shaft Claw Jam access cover 18 13 9 Separation unit 1 Open the jam access cover 2 Remove two screws and take out the separation unit 3 Draw the holder from the bracket Be careful to prevent the pressure spring coming off Separation unit ...

Page 328: ...ning roller L 1 Remove the feed unit 2 Remove the jam access cover 3 Remove an E ring bushing and coil spring from the front and rear sides 4 Slide the aligning roller L to pull it out 18 13 10 Separation plate 1 Remove the feed unit 2 Open the jam access cover 3 Remove two screws Separation plate Adjusting screw Aligning roller L Entrance guide ...

Page 329: ... the sensor from the connector Empty sensor Aligning sensor Size sensor 1 2 18 13 13 Feed roller 1 Remove the feed unit 2 Remove the entrance guide 3 Remove the gear of the drive section 1 E ring 4 Remove two E rings of the frame inner side 5 Remove the front side E ring holding the feed rolller and then extract the roller Feed roller Gear ...

Page 330: ... ring holding the roller and then pull out the roller 18 13 15 Reversing unit 1 Remove the ADF unit 2 Remove the transport unit and the cover 3 Remove the connector from the PC board 4 Remove earth wires at 2 places attached in the hinge portion Aligning roller R 2 Remove the entrance guide and then the align ing sensor 3 Remove the pulley of the drive section 2 E rings 4 Remove the bearing and tw...

Page 331: ...ver 5 When 3 screws 1 earth wire are removed the reversing unit can be taken out Note When reinstalling temporarily secure the reversing unit after having mounted the transport unit fix the reversing unit Exit cover Reversing unit 18 13 17 Reversing roller 1 Remove the reversing unit 2 Remove the bracket of the drive section 2 screws Bracket ...

Page 332: ...of the two gears is fixed with the grip ring 4 Remove the bushing of the reversing roller front side 1 E ring 5 Tilting the reversing roller remove the rear side E ring and then the gear spring clutch 6 Pull out the roller 2 Remove the sensor board from the guide 1 screw Reversing roller Gear Stay Exit cover sensor ...

Page 333: ...SHIBA 18 75 4560 4570 RADF 18 13 19 PC board 1 Remove the ADF unit 2 Remove the cover 3 Remove the eight connectors 4 Remove two screws and slide the PC board to remove it from the rear side hook portion PC board ...

Page 334: ...edger NO NO Are originals excessively curled or creased Remove curling or creasing and reset the originals Are different sized originals set together Set only the same sized originals A 2 0 6 0 2 Separation plate Feed roller Multiple originals are fed out at the same time Go to in 1 above Is the gap between the separation plate and feed roller too wide Check adjust the gap to 0 6 0 2 mm Is the sep...

Page 335: ...eight fully down until it is stopped by the guide Entrance guide Adjust the stopper of the weight clutch NO NO NO YES YES YES Check adjust the gap to 0 6 0 2 mm Is the transporting capability of the pick up and feed rollers insufficient YES Replace the rollers Is the gap between the separation plate and feed roller too narrow Weight CL stopper K BLK clutch Weight clutch ...

Page 336: ...th alcohol Is the RADF set parallel with the copier Reinstall the RADF parallel with the copier Always adjust skewing and height YES YES NO NO YES 5 Are the slides set too wide compared to the width of originals Originals and copies deviate sidewise relative to each other Adjust the original feed tray to the right or left Reset the slides to the width of originals YES NO ...

Page 337: ...properly Reconnect the harness correctly Check the related part of the copier Check the control PC board and replace it if necessary Check the empty sensor and replace it if necessary NO NO NO NO Start YES YES YES YES Check the control PC board and replace it if necessary Does EMP SNS D pin become 5V without paper 5V between B and C DC 24V applied to A A B C D CN5 TP 5V TP SG CN9 3 ...

Page 338: ...lace it if necessary NO NO YES YES YES NO Start Is voltage supplied to the connector of the motor Is the exciting pattern signal supplied to the connector of the motor Check the motor and replace it if necessary 3 Communication error Is the interface cable normal Replace the interface cable Check the related copier PC boards and replace them if necessary NO NO YES YES Start Normal Repair completed...

Page 339: ...5V with paper present Aligning roller slipping on the original Clean or replace the aligning roller or check or adjust the roller pressure YES YES YES A B CN14 6 CN14 9 5 Original s pre feed stop position failure Reflective mirror of the aligning sensor normal Clean or replace the reflective mirror Check or replace the control PC board NO NO Start Electromagnetic clutch slipping Adjust or replace ...

Page 340: ... 18 82 Nov 1997 TOSHIBA 4 1 RL C E PTR A K LED SEC 13494V 0 PF2158K202A 18 15 3 PWA F SEN 770 1 AIN 50 E PT1 C 3 CN1 PCB SENS PF2227K910A K LED A 18 15 PC Board Assemblies 18 15 1 PWA F LGC 770 18 15 2 PWA F RGS 770 ...

Page 341: ...Nov 1997 TOSHIBA 18 83 4560 4570 RADF 18 16 Circuit Diagrams Wire Harness 18 16 1 General circuit diagram ...

Page 342: ...4560 4570 RADF 18 84 Nov 1997 TOSHIBA 18 16 2 Control PC board circuit PWA F LGC 770 ...

Page 343: ...Nov 1997 TOSHIBA 18 85 4560 4570 RADF 18 16 3 Harness connection ...

Page 344: ...Nov 1997 TOSHIBA 18 86 4560 4570 RADF 18 17 Affixing Position for Mylar Sheets Note Before affixing mylar sheets clean the affixing surfaces 3 7 4 2 6 5 1 10 8 9 ...

Page 345: ...RADF 18 87 Nov 1997 TOSHIBA E n d f a c e s t a n d a r d 0 0 5 A A Sectional view Standard Align Gap 0 0 5 A A A A Gap 0 0 5 R i b e n d f a c e s t a n d a r d 0 5 A A Sectional view 2 Mirror sheel 1 Jump mylar ...

Page 346: ...Gap 0 0 5 Standard Gap 0 0 5 A A Standard 1 3 0 3 A A Sectional view S 2 1 4 Tray mylar C B Standard Align gap 0 0 5 Standard Align gap 0 0 5 Standard Align gap 0 0 5 Stick in form of a loop A A Sectional view A A Gap with 1 B Standard Align gap 0 0 5 Gap with 1 C ...

Page 347: ...tick on Standard Gap 0 0 5 Do not allow the mylar to stick on Standard Gap 0 0 5 Do not allow the mylar to stick on Standard Gap 0 0 5 S t a n d a r d a ll o w a b le t o le r a n c e 0 5 Sub mylar Original holding mylar Standard Gap 0 0 5 Do not allow the mylar to protude outside 5 Original holding mylar sub mylar 6 Guide mylar 2 7 Aligning mylar ...

Page 348: ...A 18 90 4560 4570 RADF Standard Double face tape Arrow A A Standard A Standard A A Sectional view Standard A A S t a n d a r d A A Sectional view Standard A 8 Pick up mylar 9 Reversing mirror sheel 10 Discharge brush ...

Page 349: ... items are supplied as accessories Copy receiving tray Setup report Operator s manual pocket Easy setup instructions Plastic covers 4pcs Power cord Developer Drum Large capacity feeder for 4570 Original feeding tray Installation 1 When carrying the machine hold the left and right handles of the machine firmly and move it horizontally Set the machine on an appropriate stand 19 UNPACKING and INSTALL...

Page 350: ... 19 2 Nov 1997 TOSHIBA 3 Install the large capacity feeder to the hinge 2 Fix the handles LCF Setup For 4570 1 Remove the packing materials of the large ca pacity feeder 2 Remove the packing materials of the transport guide ...

Page 351: ...ty feeder 5 Remove the following parts from the acces sory package Harness cover L 1pc 5 6 Harness cover U 1pc 5 7 Earth screw harness clamp 1each 5 8 Hinge stopper fixing screw 1each 5 9 Hinge cover fixing screw 1pc 2screws 5 11 6 Install the harness cover L 7 Install the harness cover U ...

Page 352: ...ATION 19 4 Nov 1997 TOSHIBA 8 Install the harness clamp and the earth ground in the rear side of the large capacity feeder 9 Install the hinge stopper 10 Connect the connector of the rear side 11 Install the hinge cover ...

Page 353: ...U Setup 1 Draw out the automatic duplexing unit 2 Remove 2 brackets fixing the open guide and one stopper 3 Remove packing materials from the inside of the automatic duplexing unit 4 Push the automatic duplexing unit into the machine until it stops ...

Page 354: ...6 Nov 1997 TOSHIBA 7 Remove the paper from the paper package 8 Set the paper for the cassette 5 Draw out the cassette 6 Remove the packing materials from the inside of the cassette Remove the power cord and the developer bot tle ...

Page 355: ...Nov 1997 TOSHIBA 19 7 4560 4570 INSTALLATION 9 Insert the cassette gently Packing material removal 1 Open the front cover 3 Open the upper unit 2 Remove the packing screws ...

Page 356: ...ted on each side of the process unit in the direction of the arrow Remove the developer unit from the process unit Note When the drum is exposed to fluorescent light or external light for a long time it may suffer from light caused fatigue So be sure to cover the process unit with for example a suitable cloth Developer unit setup 1 Remove the process unit Remove the screw and the connector and the...

Page 357: ...in the developer material be sure to shake the developer bottle fully By rotating the magnetic roller check that the developer material is being transported prop erly 6 After placing the developer unit in the proc ess unit move down the lever on each side to fix the developer unit 7 Reinstall the process unit into the machine Reinstall the screw and the connector ...

Page 358: ...A 9 Connect the power cable to the outlet Install the operator s manual pocket 10 Turn on the main switch of the copier 8 Close the upper unit Warning Be careful not to catch your fingers between the two units when the upper unit is pressed down ...

Page 359: ...kly 4 About 2 minutes and 30 seconds later the value on the display stabilizes at 230 250 5 About 30 seconds later the automatic adjust ment of the auto toner sensor is complete and UA is shown on the copy quantity display If the adjustment has finished abnormally the machine stops its operation and displays the CALL SERVICE Symbol Then for the subsequent adjustment of the auto toner sen sor follo...

Page 360: ...until it is locked securely Accessory parts attachment Install 4 plastic covers to the outer covers The copy receiving tray should be installed in the slots in the exit cover 5 Close the front cover 3 Pull to remove the seal from the new toner cartridge Do not shake the toner cartridge after remov ing the seal the toner may spill ...

Page 361: ...epare an A4 or Letter sized test original by drawing a line in the center of the sheet as shown 2 Place the test original 1 face up in the tray Adjust the side guides to the edges of the original 3 Press PRINT to make a copy Fold the copy in half to check that the center line is copied in the center of the sheet If not loosen the two screws and adjust the position of the original feed tray Repeat ...

Page 362: ...er operation is correct Fixing and cleaning are correct Lignt distribution is correct Exposure level is correct Control panel displays and key operation are correct Basic operations Special features Automatic paper selection APS Automatic magnification selection AMS Duplex mode Enlarging and reducing modes Interruption mode Dual page copying Edge erase copying User setting Image shifting Mode memo...

Page 363: ... to the application PPC models there is possibility of changing these figures 1 Unplug the power cable from the outlet 3 Remove the contents from the box 4 Open the front cover Lift up the upper unit This is if the MY 1006 is installed to the copier 19 2 Paper Feed Unit MY 1006 ...

Page 364: ...4560 4570 INSTALLATION 19 16 Nov 1997 TOSHIBA 6 Remove the slot cover 2 screws from the corresponding slot 7 Open the right side cover 5 Remove all the cassettes ...

Page 365: ...connector cover for the corre sponding slot Remove the 2 screws for the lower slot of the PFP 9 Install the switch for the corresponding slot 2 screws 11 Install the paper feed unit 2 screws Connect the connector 10 Remove the paper feed unit from the pack age ...

Page 366: ...4570 INSTALLATION 19 18 Nov 1997 TOSHIBA 12 Install the connector of the paper feed side 13 Reinstall the connector cover to its original po sition Install the size plate to the cassette Install the cassette ...

Page 367: ...ocket MU 10 Key copy counter MU 8 1 Remove the upper feed cover Cut the window for the counter 2 Remove the blind plate 1 screw for the 200V machine 3 Pull out the harness connector from the open ing in the machine frame Disconnect the short connector from the har ness Note Remove the rear cover if the harness con nector is in the back etc Screw holes for the socket Harness connector Blind plate ...

Page 368: ...ert the socket connector into the harness connector 5 Install the counter socket to the frame 2 M3 screws 6 Reinstall the upper feed cover 7 Insert the key copy counter with its arrow mark facing up as shown Socket connector Harness connector Screws M3 ...

Page 369: ...rvice Part This filter improves the reproduction of red originals Feed side Lens Red filter Bracket projection Procedure 1 Remove the original glass optical cover and lens cover 2 Set the red filter on the lens unit bracket at the feed side Lens unit bracket Red filter Lens bracket ...

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Toshiba 4560, Service Manual

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