Toshiba MD-0101, Service Manual

Page 1: ...AUTOMATIC DUPLEXING UNIT MD 0101 File No 31100018 ...

Page 2: ...Basically the machine should not be operated with any parts removed or disassembled 7 Delicate parts for preventing safety hazard problems such as breakers thermofuses fuses door switches sensors etc if any should be handled installed adjusted correctly 8 Use suitable measuring instruments and tools 9 During servicing or maintenance work be sure to check the serial No plate and other cautionary la...

Page 3: ...2 4 3 OPERATIONAL DESCRIPTION 3 1 3 1 General Operation 3 1 3 2 Block Diagram 3 1 3 3 Detection of Abnormal Status 3 2 3 3 1 Cover open close detection 3 2 3 3 2 Paper jam detection 3 2 3 4 Flow Chart 3 3 4 MECHANICAL DESCRIPTION 4 1 4 1 Paper Feed System 4 1 4 2 Drive System 4 2 5 CIRCUIT DESCRIPTION 5 1 5 1 PWA Block Diagram 5 1 5 2 Meaning of Signals 5 2 5 3 Timing Chart 5 3 6 DISASSEMBLY AND R...

Page 4: ...tion Stackless unit for duplex printing Paper Size A3 to A5 R LD to ST R Thickness Normal paper 64 to 80g m2 17 to 21 lbs Transport speed 92 mm sec DP1600 124 mm sec DP2500 Dimensions 101 W x 488 D x 345 H mm Weight Approx 4 3 kg Power supply 5VDC 24VDC Supplied from copier ...

Page 5: ...tober 2000 TOSHIBA TEC 2 1 MD 0101 OUTLINE 2 OUTLINE 2 1 Names of Various Components ADU 02 01 01 ADU 02 01 02 ADU paper guide assembly Release lever ADU release hook F ADU release hook R Connection cable ...

Page 6: ...ensor Upper ADUCOV SW ADU cover open switch FED1 MOT ADU motor Lower FED2 MOT ADU motor Upper PWA F ADU ADU PWA Function Detects the transport of paper Lower Detects the transport of paper Upper Detection of cover open close status during jam processing etc Drives the roller to transport paper Lower Drives the roller to transport paper Upper PWA which relays the sensor signals and drives the motor...

Page 7: ... ADU PWA CN203 CN211 FDM B FDM D 1 2 FDM A FDM C 3 4 ADUFL CRT DOWNA 5 6 GND VDD 7 8 ADCNT 9 10 ADUFU 1 2 3 4 5 6 7 8 9 10 ADUCOVSW 11 12 EXM A EXM C 13 15 EXM D 14 EXM B 11 12 CN323 1 2 3 4 5 6 7 8 9 10 11 12 13 15 14 15 14 13 12 11 10 9 8 7 6 5 4 3 1 2 15 14 13 12 11 10 9 8 7 6 5 4 3 1 2 CN204 CN212 GND GND 1 2 24V 24V 3 4 1 2 3 4 CN324 4 3 2 1 1 2 3 4 4 3 2 1 DPF GND VCC CN213 1 2 3 ADU motor U...

Page 8: ... STK672 210 STK672 210 12 1 1 12 1 C7 C8 JP10 JP8 JP9 C6 C2 JP7 JP5 JP6 C3 C5 JP2 C1 R1 C4 JP1 JP3 JP4 IC2 CN215 CN213 CN217 CN211 CN214 CN216 CN212 PF WP 15 R14 R2 R4 R3 R5 R9 R6 1 R7 R8 R15 R16 R17 R10 R11 R12 R13 PWB F ADU 520 3 41316208000 3 1 6 4 1 1 RV PD JP11 ADU 02 04 01 ...

Page 9: ...ses through the ADU unit to be turned over and returned to the copier The motor drive circuits IC1 IC2 only are installed on the ADU PWA The motor signals EXM A D FDM A D are amplified by IC1 and IC2 and drive the motors The signal of each sensor passes through the ADU PWA and is connected as it is to the PFC PWA 24V ADUFL ADU PWA ADU paper jam sensor Lower ADUFU ADU paper jam sensor Upper ADUCOVS...

Page 10: ...the copier to stop the transport of paper 3 3 2 Paper jam detection When the one side printed paper is loaded into the ADU the ADU paper jam sensors upper lower turn ON at High level for a fixed time If the ADU paper jam sensors upper lower do not turn ON or their ON time is too long the program will judge it to be paper jamming and stop the operation The paper jamming can be cleared by opening th...

Page 11: ...0101 OPERATIONAL DESCRIPTION 3 4 Flow Chart Start button ON End YES All scanning Cassette feed Scanning of document NO YES Final copy Copy Transport to ADU Feed from ADU Copy Ejection NO Change of document Start button ON ADU 03 04 01 ...

Page 12: ...per by using the two motors Flow of Paper The flow of paper is as follows The one side printed paper reversed at the exit unit The roller in the exit unit reversely turns to draw the paper into the ADU The paper having passed through the ADU is loaded again into the copier from the bottom of the ADU Printing takes place on the back of the paper and the paper is ejected ADU 04 01 01 ADU 04 04 02 Ex...

Page 13: ...f the copier as a result of changing moving the gear on the copier side thereby drawing in the one side printed paper from the copier The paper drawn into the ADU is fed into the copier again from the ADU bottom by the roller driven by the ADU motor lower The central roller is driven by the ADU motor lower through the belt Copier side ADU 04 02 01 ADU motor Upper ADU motor Lower Flow of paper ...

Page 14: ...nal which detects connection of the ADU and connected to GND When its connector is attached the signal goes LOW so that the copier can confirm its connection ADU 05 01 01 SG 5V SG 2 3 1 5V SG 2 5 3 1 2 1 CN211 CN212 24V 6 4 2 3 1 24V PG SG R6 R7 R8 2 24V 1 5V 5V 2 1 5 SG 4 3 PG 4 FDM B FDM D ADUFL NC ADUFU ADUCOVSW ADCNT 15 14 8 9 6 FDMC FDMA FDMB FDMD EXMC EXMA EXMB EXMD ADU PWA PFC PWA 3 5 4 3 1...

Page 15: ...otor lower and ADU motor upper are 2 phase excitation PM type pulse motors stepping motors and operate according to the drive signals from the driver IC s IC1 IC2 Signal name Part name Functional description Status Note ADUFL ADU paper jam Detects the transport of High Paper present Photo sensor sensor Lower paper Lower ADUFU ADU paper jam Detects the transport of High Paper present Photo sensor s...

Page 16: ... 3 12s 2 18s 3 13s 2 19s 5 67s 4 01s 5 84s 4 13s 5 96s 4 30s 10 96s 8 01s 12 17s 8 95s 19 51s 15 49s 11 83s 8 79s 14 57s 10 72s 14 59s 10 74s 17 14s 12 62s 8 07s 5 87s 10 66s 7 79s 8 43s 6 13s 10 96s 8 01s 11 52s 8 57s 12 08s 8 97s 9 74s 7 10s 13 16s 9 69s ADU 05 03 01 The values are data reference values applicable when the A4 size paper is used The value in brackets is for the DP2500 machine ...

Page 17: ...e cover F Fig 6 1 2 Remove 2 screws and detach ADU hinge cover R Fig 6 2 B ADU paper guide assembly 1 Pull ADU release lever to release one hook and open ADU Fig 6 3 2 Release 2 hooks and remove ADU paper guide assembly Fig 6 4 Screw Screw ADU hinge cover F Screw Screw ADU hinge cover R ADU release lever ADU ADU paper guide assembly Hook 223 224 225 226 ...

Page 18: ...ig 6 2 3 Remove one screw and detach harness fixing plate Fig 6 5 4 Remove one screw detach the ground wire and the connector Fig 6 6 5 Remove stopper from ADU hinge F Fig 6 7 6 Open ADU remove one screw and remove plate A Fig 6 8 Harness fixing plate Screw Connector Ground wire Screw Snap pin ADU hinge F Screw Plate A ADU 227 1 227 2 228 229 ...

Page 19: ...2 Detach ADU hinge cover R See Fig 6 2 3 Remove ADU See Fig 6 5 to 6 9 4 Remove 2 screws release one hook and wire and detach ADU hook cover R Fig 6 10 5 Release 2 hooks detach one connector and re move ADU cover open sensor Fig 6 11 6 Remove 4 screws and detach ADU cover Fig 6 12 ADU Wire Screw Wire ADU hook cover R Hook Hook ADU cover open sensor Connector Screw Screw ADU cover 230 231 232 233 ...

Page 20: ...ors from ADU PWA re lease 4 locking supports and remove ADU PWA Fig 6 14 F ADU motor 1 Detach ADU hinge cover F See Fig 6 1 2 Detach ADU hinge cover R See Fig 6 2 3 Remove ADU See Fig 6 5 to 6 9 4 Detach ADU cover See Fig 6 10 to 6 12 5 Detach one connector from ADU PWA CN216 remove 2 screws remove ADU motor by sliding in the direction of the arrow Note Apply 0 1g of GREASE X5 6020 to the gear too...

Page 21: ... clamp and re move ADU motor bracket upper Fig 6 18 1 Detach ADU hinge cover F See Fig 6 1 2 Detach ADU hinge cover R See Fig 6 2 3 Remove ADU paper guide assembly See Fig 6 3 and 6 4 4 Remove ADU See Fig 6 5 to 6 9 5 Detach ADU cover See Fig 6 10 to 6 12 6 Detach PWB cover See Fig 6 13 7 Remove 2 screws and remove ADU release le ver Screw ADU release lever ADU release hook R Screw Spring ADU PWB ...

Page 22: ...2 Detach ADU hinge cover R See Fig 6 2 3 Remove ADU paper guide assembly See Fig 6 3 and 6 4 4 Remove ADU See Fig 6 5 to 6 9 5 Detach ADU cover See Fig 6 10 to 6 12 6 Detach PWA cover See Fig 6 13 7 Remove ADU PWA See Fig 6 14 8 Detach stop ring and remove pulley and timing belt Note Be sure to insert the pins when attaching Fig 6 21 E ring Clutch 08S018 06CL Bushing ADU feed roller shaft upper Bu...

Page 23: ...Detach ADU cover See Fig 6 10 to 6 12 6 Detach PWB cover See Fig 6 13 7 Remove timing belt See Fig 6 21 8 Detach one connector from ADU PWA CN215 9 Remove 4 screws release one clamp and re move ADU motor bracket lower Fig 6 23 10 Detach the E ring remove clutch 08S018 06CL and 2 bushings and remove ADU feed roller shaft lower Fig 6 24 ADU feed roller shaft middle Bushing Bushing Stop ring ADU PWA ...

Page 24: ...1 1 KANDA NISHIKI CHO CHIYODA KU TOKYO 101 8842 JAPAN ...