SERVICE MANUAL MR-3024/3025/3028 REVERSING AUTOMATIC DOCUMENT FEEDER

Transcription

1 SERVICE MANUAL REVERSING AUTOMATIC DOCUMENT FEEDER MR-04/05/08 Model: MR-04/05 Publish Date: April 0 File No. SME000B0 R0L060-TTEC Ver0 F_04-04

2 Trademarks Molykote is a registered trademark of Dow Corning Corporation. Other company names and product names in this manual are the trademarks of their respective companies TOSHIBA TEC CORPORATION All rights reserved Under the copyright laws, this manual cannot be reproduced in any form without prior written permission of TOSHIBA TEC CORPORATION.

3 General Precautions for Installation/Servicing/Maintenance for This RADF The installation and service shall be done by a qualified service technician. ) When installing the RADF to the Equipment, be sure to follow the instructions described in the Unpacking/Set-Up Procedure for the RADF booklet which comes with each unit of the RADF. ) The RADF should be installed by an authorized/qualified person. ) The equipment must be grounded for safety. 4) Before starting installation, servicing or maintenance work, be sure to turn OFF and unplug the equipment first. 5) The equipment shall be installed near the socket outlet and shall be easily accessible. 6) Be sure to fix and plug in the power cable securely after the installation so that no one trips over it. 7) Unplug the power cable and clean the area around the prongs of the plug and socket outlet once a year or more. A fire may occur when dust lies on this area. 8) The RADF should be grounded to the specified positions on the machine frame. 9) When servicing or maintaining the RADF, be careful about the rotating or operation sections such as gears, pulleys, sprockets, cams, belts, etc. 0)Reassembly of disassembled parts is the reverse of the disassembly unless otherwise noted in this manual or other related documents. Care should be taken that small parts, such as screws, washers, pins, E-rings, star washers, harnesses are not installed in the wrong places. )Basically, the machine should not be operated with any parts removed or disassembled. )When servicing the equipment with the power turned ON, be sure not to touch live sections and rotating/operating sections. )Delicate parts for preventing safety hazard problems (such as switches, sensors, etc. if any) should be handled/installed/adjusted correctly. 4)Use suitable measuring instruments and tools. 5)During servicing or maintenance work, be sure to check the serial No. plate and other cautionary labels (if any) to see if they are clean and firmly fixed. If not, take appropriate actions. 6)The PC board must be stored in an anti-electrostatic bag and handled carefully using a wristband, because the ICs on it may be damaged due to static electricity. Before using the wrist band, pull out the power cord plug of the equipment and make sure that there is no uninsulated charged objects in the vicinity. 7)For the recovery and disposal of used RADF, consumable parts and packing materials, follow the relevant local regulations/rules should be followed.

4 8)After completing installation, servicing and maintenance of the RADF, return the RADF to its original state, and check operation. 9)Check the procedures and perform as described in the Service Manual. 0)Make sure you do not lose your balance. )Avoid exposure to your skin and wear protective gloves as needed.

5 CONTENTS. SPECIFICATIONS GENERAL DESCRIPTION Main Components...-. Sectional View Electric Parts Layout Symbols and Functions of Various Components Diagram of Signal Blocks Description of Interface Signals DESCRIPTION OF OPERATIONS DRIVE SYSTEM Outline Original feed motor drive section Read motor drive section Original exit/reverse motor drive section Original Size Detection Outline Original tray width sensor Original width detection sensors- and - / Original length detection sensor FLOW CHART DESCRIPTION OF CIRCUIT Drive Circuit for Feed Motor Drive Circuit for Read Motor Drive Circuit for Exit Motor Drive Circuit for FAN Motor Reset Circuit Drive Circuit for Pickup Solenoid Drive Circuit for Gate Solenoid DISASSEMBLY AND ASSEMBLY Cover Roller Motor / Motor drive section Solenoid Sensor/switch PC Board Others ADJUSTMENT Adjustment of Position Adjustment of Height Adjustment of Skew Adjustment of the Leading Edge Position Adjustment of Horizontal Position Adjustment of Copy Ratio Adjustment of RADF Opening/Closing Sensor TROUBLESHOOTING Troubleshooting for Mechanical Errors Troubleshooting for Electrical Errors Jam MAINTENANCE AND REWRITING ROM Periodic Maintenance Rewriting ROM (Firmware Updating) TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 CONTENTS

6 8. CIRCUIT DIAGRAM / HARNESS DIAGRAM Circuit Diagram Control PC Board Circuit MR-04/05/ MR-04/05/08 CONTENTS 0-04 TOSHIBA TEC CORPORATION All rights reserved

7 . SPECIFICATIONS Item MR-04 MR-05/08 Maximum number of originals on the original feeding tray Up to 00 sheets or 6 mm in height. * 5-80 g/m (9. -. lb. Bond) Acceptable paper size A5-R, A4, A4-R, B5, B5-R, B4, A, FOLIO, ST-R, LT, LT-R, LG, LD, COMPUTER Acceptable paper weight -sided: 5-57 g/m (9. lb. Bond - 58 lb. Cover) -sided: g/m (. lb. Bond - 58 lb. Cover) Dimensions W575 x D5 x H5 (mm) * Excluding original tray Up to 00 sheets or 6 mm in height. * 5-80 g/m (9. -. lb. Bond) A5-R, A4, A4-R, B5, B5-R, B4, A, FOLIO, ST-R, LT, LT-R, LG, LD, COMPUTER -sided: 5-57 g/m (9. lb. Bond - 58 lb. Cover) -sided: g/m (. lb. Bond - 58 lb. Cover) W575 x D5 x H5 (mm) * Excluding original tray Weight.5 kg.5 kg Power consumption Approx W Approx W Power requirements DC5 V, DC4 V DC5 V, DC4 V * Supplied from the equipment * Supplied from the equipment Co-packed items Remarks Unpacking Instruction ( set) Charts (A4/LT: sheet each) Mounting screws (6 pcs) Positioning pins ( pcs) Washer ( pc) Stopper bracket ( pc) Stopper bracket fixing screw ( pc) Unpacking Instruction ( set) Charts (A4/LT: sheet each) Mounting screws (6 pcs) Positioning pins ( pcs) Washer ( pc) Stopper bracket ( pc) Stopper bracket fixing screw ( pc) The difference between MR-05 and MR-08 is the Original tray color. (MR-05: Deep violet gray, MR-08: Sky gray) 0-04 TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 SPECIFICATIONS -

8 MR-04/05/08 SPECIFICATIONS TOSHIBA TEC CORPORATION All rights reserved

9 . GENERAL DESCRIPTION. Main Components Feeding/Transporting section Drive/Control section Original tray section Original exit tray section Fig. - Location Feeding/Transporting section Original tray section Original exit tray section Drive/Control section * MR-04 only Pickup roller Feed roller Separation roller Registration roller Intermediate transfer roller Pre-reading roller Post-reading roller Exit/reverse roller Reverse registration roller Original width guide Original tray Original reverse tray Original exit tray Components Original empty sensor (S) Original length detection sensor (S4) Original registration sensor (S5) Original width detection sensor- (S6) Original width detection sensor- (S7) Original intermediate transport sensor(s8) Read sensor (S9) Original exit/reverse sensor (S0) Jam access cover sensor (S) Original tray sensor (S) Original tray width sensor (S) Original feed motor (M) Read motor (M) Original exit/reverse motor (M) Fan motor (M4) Original pickup solenoid (SOL) Gate solenoid (SOL) * RADF opening/closing sensor (S) * Jam access cover opening/closing switch (SW) RADF control PC board (RADF) 0-04 TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 GENERAL DESCRIPTION -

10 . Sectional View R8 R4 R R R TRY TRY TRY R5 R6 R7 FLP R9 FLP Fig. - TRY Original tray R Separation roller TRY Original reverse tray* R4 Registration roller TRY Original exit tray R5 Intermediate transfer roller FLP Exit gate R6 Pre-reading roller FLP Reverse flap* R7 Post-reading roller R Pickup roller R8 Reverse registration roller R Feed roller R9 Exit/reverse roller * MR-04 only MR-04/05/08 GENERAL DESCRIPTION TOSHIBA TEC CORPORATION All rights reserved

11 . Electric Parts Layout M SOL SOL ADF M4 M M LED S S S S S S7 S6 S5 SW S9 S8 S0 S4 Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 GENERAL DESCRIPTION -

12 .4 Symbols and Functions of Various Components ) Motors Symbol Name Function M Original feed motor Drives the original feed roller, pickup roller and registration roller. M Read motor Transports originals by driving the intermediate transport roller, front read roller, rear read roller and reverse registration roller. M Original exit/reverse motor Drives the original exit/reverse roller. M4 Fan motor Cools off the ADF drive section and ADF board. ) Sensors and Switches Symbol Name Function S Original tray sensor Detects the length of the original set on the original tray. S Original tray width sensor Detects the width of the original set on the original tray. S Original empty sensor Detects the original set on the original tray. S4 Original length detection Detects the length of the original. sensor S5 Original registration sensor Detects transport of the original at the registration roller section. S6 Original width detection sensor- Detects the width of the original. S7 Original width detection sensor- Detects the width of the original. S8 Original intermediate transport Detects the original transported to the Pre-scanning section. sensor S9 Read sensor Detects the leading edge of the original at the original scanning section. S0 Original exit/reverse sensor Detects the exit (transit) of an original. Also detects the stop reference position for an original when in reverse. S Jam access cover sensor Detects opening/closing of the Jam access cover. S RADF opening/closing sensor* Detects opening/closing of the RADF. SW Jam access cover opening/ Switches between cutoff and supply state of the 4 V power by opening/closing closing switch of the jam access cover. * MR-04 only ) Solenoid Symbol Name Function SOL Original pickup solenoid Drives up and down the original pickup roller. SOL Gate solenoid* Drives the reverse flap. (Switches the flap to the reverse side when turned to ON.) * MR-04 only 4) PC board Symbol Name Function RADF RADF control PC board Controls the RADF. (RADF board) LED LED board Controls the lighting of LED. MR-04/05/08 GENERAL DESCRIPTION TOSHIBA TEC CORPORATION All rights reserved

13 .5 Diagram of Signal Blocks Equipment RADF RxD TxD REQ ACK DF-REQ DF-ACK Driver Driver Driver Driver Driver Driver Original feed motor (M) Read motor (M) Original exit/reverse motor (M) Fan motor (M4) Original pickup solenoid (SOL) Gate solenoid (SOL) * SCAN-ST CNT DC 4V DC 5V Downlad jig Reset IC CPU Original tray sensor (S) Original tray width sensor (S) Original empty sensor (S) Original length detection sensor (S4) Original registration sensor (S5) Original width detection sensor- (S6) Original width detection sensor- (S7) Original intermediate transport sensor (S8) Read sensor (S9) Original exit/reverse sensor (S0) Jam access cover sensor (S) RADF opening/closing sensor (S) * Jam access cover opening/closing switch (SW) Fig. -4 * MR-04 only 0-04 TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 GENERAL DESCRIPTION - 5

14 .6 Description of Interface Signals The following 6 lines are used to transmit/receive signals between the equipment and the RADF. REQ...Communication request signal (from equipment to the RADF) DF-REQ...Communication request signal (from the RADF to equipment) DF-ACK...Communication request acknowledging signal (from the RADF to equipment) ACK...Communication request acknowledging signal (from equipment to the RADF) TxD...Data transmitted from equipment to the RADF RxD...Data transmitted from the RADF to equipment Data communication (RxD and TxD) between the scanner and the RADF has adopted the serial communication system which does not allow checking using testing devices to see whether the signals are transmitted/received properly in the field. RADF Equipment REQ DF-ACK TxD DF-REQ ACK RxD Fig. -5 MR-04/05/08 GENERAL DESCRIPTION TOSHIBA TEC CORPORATION All rights reserved

15 . DESCRIPTION OF OPERATIONS. DRIVE SYSTEM Feed motor drive section Read motor drive section Exit/reverse motor drive section Fig. -.. Outline Originals are transported by the original feed motor, read motor and original exit/reverse motor. Each motor has a drive section for the following operations: Original feed motor drive section: picks up originals and drives the registration roller. Read motor drive section: transports originals and drives parts such as the pre-reading roller. Original exit/reverse motor drive section: exits and reverses originals, and drives the exit/reverse roller. The Original feed motor rotates reversely when the originals are being transported at the registration roller, compared to its rotational direction when they are being picked up. The original exit/reverse motor also rotates reversely when the originals are being reversed and transported, compared to its rotational direction when they are being exited. The read motor always rotates in a constant direction TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS -

16 .. Original feed motor drive section Original feed motor Oneway clutch Pickup roller Feed roller Oneway clutch Separation roller Pickup Feed Registration roller Fig. - When an original is placed on the original tray and the RADF receives a feed request signal from the equipment, the feeding of the original is started. The original empty sensor detects the presence of the original, and then the pickup roller is lowered by the drive from the original pickup solenoid. The Original feed motor rotates, and the pickup roller and the feed roller then rotate in a normal direction (shown in a solid line in the figure) to guide the original into the transport path. Then the original is transported to the registration roller to be aligned. The original aligned with the registration roller is then transported by the reverse rotation of the Original feed motor (shown in a dotted line in the figure). A one-way clutch is installed inside of each gear of the feed roller and the registration roller, so these gears will not be driven in a reverse rotation. When the original empty sensor detects that there is no original on the original tray, the original pickup solenoid is turned OFF and the pickup roller is raised. The original pickup solenoid is the one can operate both suction and recovery. MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

17 .. Read motor drive section Read motor Reverse registration roller Post-reading roller Pre-reading roller Intermediate transfer roller Fig. - The transported original is driven by the read motor. Then the original is transported to a scanning start position by the intermediate transfer roller and prereading roller. The original transported to the scanning start position is then scanned in the scanner function of the equipment. When the data of the original have been scanned, the original is then transported to the original exit tray side by the post-reading roller TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS -

18 ..4 Original exit/reverse motor drive section <MR-04> Gate solenoid Reverse flap Exit/reverse motor Exit Exit/reverse roller Reverse Fig. -4 When the data of the original have been scanned, the original is exited to the original exit tray by the exit/reverse roller driven by the exit motor (shown in a solid line in the figure). In the duplex scanning mode, the gate solenoid is turned ON and the reverse flap is lowered to switch the transport path to the reverse tray side when the scanning of one side of the original is completed. When the reverse flap is lowered, the original is temporarily transported to the reverse tray, and then the exit motor rotates reversely to return the original to the transport path switched for reverse operation (shown in a dotted line in the figure). The reversed original is aligned with the reverse registration roller, and then the other side of the original is scanned. When the scanning is completed, the original is exited to the original exit tray. MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

19 <MR-05/08> Exit/reverse motor Exit Exit/reverse roller Reverse Fig. -5 When the data of the original have been scanned, the original is exited to the original exit tray by the exit/reverse roller driven by the exit motor (shown in a solid line in the figure). In the duplex scanning mode, the original is temporarily transported to the reverse tray, and then the exit motor rotates reversely to return the original to the transport path switched for reverse operation (shown in a dotted line in the figure). The reversed original is aligned with the reverse registration roller, and then the other side of the original is scanned. When the scanning is completed, the original is exited to the original exit tray TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS - 5

20 . Original Size Detection The original tray width sensor, original length detection sensor, and original width detection sensors- and - work in combination to detect the size of originals. Original width detection sensor- Original tray width sensor Original width detection sensor- Fig. -6 Original length detection sensor.. Outline When an original is placed on the original tray, the width of the original is detected by the positions of the original width guides. Then the original width sensors - and - and the original length detection sensor detect the size of the original being transported. Based on the detection result of these sensors, the size of the original is finally determined... Original tray width sensor The original tray width sensor detects the width of an original placed on the original tray. It is detected by the brush attached to the rack moving on the original tray width sensor, which is a board with the different length of the patterns written. This brush is moved as the original width guide is moved. Signals (TWID0S, TWIDS, TWIDS) are opened and shorted to SG by this movement. The combination of these short (= low level) and open (= high level) can determine the width of the original. Sizes detectable in combination of these open and short of the signals are as follows: TWIDS TWIDS TWID0S Original width size Original width size (LT series) (A4 series) L H H - B5-R H L H ST-R A5-R L L H LD / LT A / A4 L H L 8.5 x 8.5 / LT-R / LG / "LG A4-R / FOLIO L L L COMPUTER B4 / B5 H (= high level): Open L (= low level): Short MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

21 .. Original width detection sensors- and - / Original length detection sensor The size of the original is determined by the detection performed in combination of the original width detection sensors- and - and the original length detection sensor, as well as the detection performed by the original tray width sensor. Sizes detectable in combination of these sensors are as follows: A4 series (ORG-SRS: ) Original length Original width detection sensor sensor- OFF ON Original width sensor- Size determined Original tray width OFF OFF A5-R - ON OFF B5 - ON ON A4 - OFF OFF B5-R - ON OFF A4-R / FOLIO B4 Determined by a gap between guides ON ON A - A4 series (width sizes mixed at A / A4 standard) Original length Original width Original width detection sensor sensor- sensor- ON OFF Size determined ON ON A OFF OFF A4-R / FOLIO ON OFF B4 ON OFF B5 ON ON A4 Original tray width A / A4 A4 series (width sizes mixed at B4 / B5 standard) Original length Original width Original width detection sensor sensor- sensor- ON OFF Size determined OFF OFF A4-R / FOLIO ON OFF B4 ON OFF B5 OFF OFF A5-R Original tray width B4/B5 A4 series (width sizes mixed at A4-R standard) Original length Original width Original width detection sensor sensor- sensor- ON Size determined OFF OFF B5-R ON OFF A4-R / FOLIO OFF OFF OFF A5-R Original tray width A4-R A4 series (width sizes mixed at B5-R standard) Original length Original width Original width detection sensor sensor- sensor- Size determined ON OFF OFF B5-R OFF OFF OFF A5-R Original tray width B5-R 0-04 TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS - 7

22 LT series (ORG-SRS: 0) Original length Original width detection sensor sensor- OFF ON Original width sensor- Size determined Original tray width OFF OFF ST-R - ON OFF 8.5x8.5 - ON ON A4 - ON OFF LT-R / LG / COMP / LG - ON ON LD - LT series (width sizes mixed at LD / LT standard) Original length Original width Original width detection sensor sensor- sensor- ON Size determined ON ON LD ON OFF COMP OFF OFF LT-R / LG / 8.5x8.5 / LG OFF ON ON LT Original tray width LD / LT LT series (width sizes mixed at LG / LT-R standard) Original length Original width Original width detection sensor sensor- sensor- Size determined ON ON OFF LT-R / LG / 8.5x8.5 / LG OFF OFF OFF ST-R Original tray width LD / LT MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

23 . FLOW CHART Power ON Standby RADF jam access cover OPEN? YES NO All sensors OFF? NO YES Jam Empty sensor ON? NO YES Feed request signal received? NO YES Standby Original on feeding tray? NO YES Jam D Pickup solenoid ON, pickup roller goes down, feed motor rotates forward. A 0-04 TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS - 9

24 A Original registration sensor ON? NO YES Feed motor stops after transporting for a certain period of time. A certain period of time passed? YES NO Jam A certain period of time passed? NO YES Registration roller rotates. (Feed motor rotates reverse.) Read motor rotates. Paper transported before the intermediate transport roller? YES NO Monitoring registration sensor by parallel processing. Feed motor stops when registration sensor detects trailing edge of original. Skip to D. Feed motor rotation speed switches. First scan: Highest speed Second scan/later: Requested speed B MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

25 B Original intermediate transport sensor ON? NO YES Feed motor and read motor stop after transporting for certain period of time. A certain period of time passed? YES NO Jam Feed request signal received? NO YES Duplex? YES NO Registration roller also rotates, while read motor rotates and registration sensor ON. E Transport for a certain amount of distance completed? NO YES Scanning start signal sent (level: High) Exposure and scanning start. C 0-04 TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS -

26 C Original exit/reverse sensor ON? NO YES Original exit/reverse motor rotates. A certain period of time passed? YES NO NO Read sensor OFF? Jam YES A certain period of time passed? NO YES Scanning start signal sent (level: High) Scanning completed. D Original exit/reverse sensor OFF? NO YES Read motor stops. A certain period of time passed? YES NO Transport for a certain amount of distance completed? NO Jam YES Original exit/reverse motor stops. END MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

27 E Registration roller also rotates, while read motor rotates and registration sensor ON. Gate solenoid ON * MR-04 only Transport for a certain amount of distance completed? NO YES Scanning start signal sent (level: High) Exposure and scanning start. Original exit/reverse sensor ON? NO YES Original exit/reverse motor rotates. A certain period of time passed? YES NO Read sensor OFF? Jam YES A certain period of time passed? NO YES Scanning start signal sent (level: Low) Scanning completed. F 0-04 TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS -

28 F Original exit/reverse sensor OFF? NO NO YES Transport for a certain amount of distance completed? YES A certain period of time passed? Jam YES NO Original exit/reverse motor and read motor stop. After a certain period of time, original exit/reverse motor reverses, read motor starts, reverse roller aligns original, and then system reboots. Original intermediate transport sensor ON? NO YES Exit/reverse and read motor stop after transporting for a certain amount of distance. A certain period of time passed? Jam YES NO Transport request signal received? NO YES Read motor and exit/reverse motor rotate at requested speed. Transport for a certain amount of distance completed? NO YES G MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

29 G Scanning start signal sent (level: High) Exposure and scanning start. Original exit/reverse sensor ON? YES Original exit/reverse motor rotates. NO A certain period of time passed? YES NO Jam NO Read sensor OFF? YES NO A certain period of time passed? YES Scanning start signal sent (level: Low) Scanning completed. Original exit/reverse sensor OFF? NO YES A certain period of time passed? NO NO Transport for a certain amount of distance completed? YES Jam YES H 0-04 TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS - 5

30 H Original exit/reverse motor and read motor stop. After a certain period of time, original exit/reverse motor reverses, read motor starts, reverse roller aligns original, and then system reboots. Original intermediate transport sensor ON? NO YES A certain period of time passed? YES NO Jam Original exit/reverse sensor OFF? NO YES A certain period of time passed? NO NO Transport for a certain amount of distance completed? YES Jam YES Original exit/reverse motor and read motor stop. Gate solenoid OFF * MR-04 only END MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

31 .4 DESCRIPTION OF CIRCUIT.4. Drive Circuit for Feed Motor Fig. -7 This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor current of the feed motor. A drive clock signal (FMOT-CLK) and rotation direction signal (FMOT-CW/CCW) are input to control the speed and direction of the motor rotation. When the level of the enabling signal (FMOT-Enable) is set to "L", motor current is turned OFF regardless of the state of other signals. For the excitation mode, either of phase excitation, - phase excitation, W- phase excitation, W- phase excitation or the 4W- phase excitation can be selected using the excitation switching signal (FMOT-Mode/FMOT-Mode). The edge switching signal (FMOT-Mode) is used to specify the switching timing for excitation phase either from when both the rise and decay edge of the CLK input are detected or when only the rising edge is detected. Motor current value can be set discretionary by changing the level of the reference setting signal (FMOT-REF) TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS - 7

32 .4. Drive Circuit for Read Motor Fig. -8 This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor current of the read motor. A drive clock signal (RMOT-CLK) and rotation direction signal (RMOT-CW/CCW) are input to control the speed and direction of the motor rotation. When the level of the enabling signal (RMOT-Enable) is set to "L", motor current is turned to OFF regardless of the state of other signals. For the excitation mode, either of phase excitation, - phase excitation, W- phase excitation, W- phase excitation or the 4W- phase excitation can be selected using the excitation switching signal (RMOT-Mode/RMOT-Mode). The edge switching signal (RMOT-Mode) is used to specify the switching timing for excitation phase either from when both the rise and decay edge of the CLK input are detected or when only the rising edge is detected. Motor current value can be set discretionary by changing the level of the reference setting signal (RMOT-REF). MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

33 .4. Drive Circuit for Exit Motor Fig. -9 This circuit controls the rotation/stoppage and the direction of rotation, excitation mode and motor current of the exit motor. A drive clock signal (EMOT-CLK) and rotation direction signal (EMOT-CW/CCW) are input to control the speed and direction of the motor rotation. When the level of the enabling signal (EMOT-Enable) is set to "L", motor current is turned OFF regardless of the state of other signals. As IC-0pin (MODE) is connected to +5V, excitation mode is applied at - phase excitation. The edge switching signal (EMOT-Mode) is used to specify the switching timing for excitation phase either from when both the rise and decay edge of the CLK input are detected or when only the rising edge is detected. Motor current value can be set discretionary by switching the level of the reference switching signal (EMOT-REFS0,EMOT-REFS)..4.4 Drive Circuit for FAN Motor Fig. -0 This circuit controls the rotation/stoppage of the fan motor. The FAN starts to rotate when the FAN motor drive signal level is set to H, and stops when the level is set to L TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS - 9

34 .4.5 Reset Circuit Fig. - This circuit generates a reset signal when the power is turned ON and the power voltage is blocked or cut off/lowered temporarily. At the power-on, the circuit shifts the level of the reset signal from L to H to put the CPU in a operative state after the reset pulse duration (Tpd) determined by the capacitance of C58 has passed from when the power voltage has reached the supervisory voltage (Vs) divided by R6 and R7. When a power voltage drop (cutoff, temporary cutoff, temporary low voltage) occurs and the power voltage becomes lower than the set value for the supervisory voltage for the power, the circuit sets the level of the reset signal (RESET) to L to put the CPU in a halt state..4.6 Drive Circuit for Pickup Solenoid Fig. - Pick up solenoid is a two-way solenoid that can be operated both in suction and recovery, and driven by two transistors (Q4 and Q) for each operation respectively. When the PSOL-ON-Signal level is set to L, Q4 is turned ON, the power of 4V is applied to the coil for suction operation, the solenoid is turned ON, and then the pickup roller goes down. When the PSOL-ON-Signal level is set to L, Q is turned ON, the power of 4V is applied to the coil for recovery operation, the solenoid is turned OFF, and then the pickup roller goes up. MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

35 .4.7 Drive Circuit for Gate Solenoid <MR-04 only> Fig. - Gate solenoid driven by the driver transistor (Q) is a solenoid which is used to switch an original into the reverse tray when in the duplex scanning mode. When the GSOL-ON-Signal level is set to L, the reverse flap goes down and the original is transported to the reverse tray TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DESCRIPTION OF OPERATIONS -

36 MR-04/05/08 DESCRIPTION OF OPERATIONS TOSHIBA TEC CORPORATION All rights reserved

37 4. DISASSEMBLY AND ASSEMBLY 4. Cover [A] Front cover () Open the RADF and remove screws. 4 Fig. 4- () Close the RADF. () Open the jam access cover and remove screws. Fig. 4- (4) Disconnect connector [] of the LED board. Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4 -

38 (5) Take off the front cover toward you. Front cover Fig. 4-4 [B] Rear cover () Open the jam access cover and remove 4 screws. Fig. 4-5 () Raise the original tray and take off the rear cover upward. Rear cover Fig. 4-6 MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

39 [C] Jam access cover () Take off the front cover. ( P. 4- "[A] Front cover") () Take off the rear cover. ( P. 4- "[B] Rear cover") () Remove clip and then the dial and pin. Pin Dial Clip Fig. 4-7 (4) Remove screw and the hinge pin. 4 Hinge pin Fig. 4-8 (5) Take off the jam access cover by sliding it. Jam access cover Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4 -

40 [D] Left cover () Remove screws and take off the left cover. Left cover Fig. 4-0 [E] Original tray () Take off the front cover. ( P. 4- "[A] Front cover") () Take off the rear cover. ( P. 4- "[B] Rear cover") () Take off the paper feeder unit. ( P. 4-6 "[A] Paper feeder unit") (4) Remove screws. Lift up the feeder upper guide [] by sliding it to the right. Note: Do not pull the harness too strong. Fig. 4- (5) Disconnect connector from the RADF control PC board. Fig. 4- MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

41 (6) Remove screw and take off the bushing. (7) Take off the original tray. Original tray Bushing Screw Fig. 4- [F] Original reverse tray <MR-04 only> 4 () Take off the original tray. ( P. 4-4 "[E] Original tray") () Remove screw and take off the original reverse tray. Original reverse tray Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-5

42 4. Roller [A] Paper feeder unit () Open the jam access cover. () Remove screw and take off the bracket [] and []. Fig. 4-5 () Remove clip and slide bushings. Clip Fig. 4-6 (4) Take off the paper feeder unit. Paper feeder unit Fig. 4-7 MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

43 [B] Pickup roller [PM] () Take off the paper feeder unit. ( P. 4-6 "[A] Paper feeder unit") () Remove clip and pull out the shaft. Take off the pickup roller. Shaft Pin Clip Pickup roller Fig. 4-8 Notes:. Be careful not to drop the pin because it will come off when the shaft is pulled out.. Make sure you assemble the pickup roller with the one-way clutch in the correct direction. 4 Lock Lock Fig. 4-9 [C] Feed roller [PM] () Take off the paper feeder unit. ( P. 4-6 "[A] Paper feeder unit") () Remove clip. Clip Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-7

44 () Slide the pulley and remove pin. Pin Pulley Fig. 4- (4) Pull out the shaft and take off the feed roller. Feed roller Shaft Fig. 4- Note: Make sure you assemble the feed roller with the one-way clutch in the correct direction. Lock Lock Fig. 4- MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

45 [D] Separation roller [PM] () Take off the paper feeder unit. ( P. 4-6 "[A] Paper feeder unit") () Remove screws. Slide the feeder upper guide [] to the right and raise it. Note: Do not pull the harness out with too much force. Fig. 4-4 () Take off the separation roller holder. 4 Fig. 4-5 (4) Take off the separation roller unit. Separation roller unit Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-9

46 (5) Remove bushing and clip, and then take off the separation roller. Separation roller Bushing Clip Fig. 4-7 [E] Feeder lower guide () Take off the original tray. ( P. 4-4 "[E] Original tray") () Take off the paper feeder unit. ( P. 4-6 "[A] Paper feeder unit") () Remove screws and take off the stay. Stay Fig. 4-8 (4) Take off the jam access guide. Jam access guide Fig. 4-9 MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

47 (5) Remove 4 screws. Disconnect connector and take off the feeder lower guide. Feeder lower guide Fig. 4-0 [F] Registration roller () Take off the feeder lower guide. ( P. 4-0 "[E] Feeder lower guide") () Take off the original feed motor drive section. ( P. 4- "[E] Original feed motor drive section") () Remove E-ring and bushing from the front side of the registration roller shaft. Also, remove bushing, pulley, E-ring and bushing from the rear side of the shaft, and then take off the registration roller. Bushing Pulley E-ring Bushing Registration roller 4 Bushing E-ring Fig. 4- [G] Exit/reverse roller () Take off the front cover. ( P. 4- "[A] Front cover") () Take off the original exit/reverse motor. ( P. 4-6 "[F] Original exit/reverse motor (M)") () Remove clip, pulley, pin and bushing from the rear side of the exit/reverse roller shaft. Pulley Bushing Pin Clip Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4 -

48 (4) Remove screw and take off the leaf spring. (5) Remove clip and bushing from the front side of the exit/reverse roller shaft. Leaf spring Clip Bushing Fig. 4- (6) Take off the jam access guide. Jam access guide Fig. 4-4 (7) Pull out the exit guide. Exit guide Fig. 4-5 MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

49 (8) Take off the exit/reverse roller. Exit/reverse roller Fig. 4-6 [H] Pre-reading guide () Take off the front cover. ( P. 4- "[A] Front cover") () Take off the rear cover. ( P. 4- "[B] Rear cover") () Take off the jam access cover. ( P. 4- "[C] Jam access cover") (4) Take off the left cover. ( P. 4-4 "[D] Left cover") (5) Remove screw and take off the hinge pin. Hinge pin 4 Fig. 4-7 (6) Disconnect connectors. Remove screws and take off the pre-reading guide. Pre-reading guide Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4 -

50 [I] Intermediate transport roller () Take off the pre-reading guide. ( P. 4- "[H] Pre-reading guide") () Take off the read motor drive section. ( P. 4-9 "[C] Read motor drive section") () Remove bushing, screw, pulley and bushing from the rear side of the intermediate transport roller shaft. (4) Remove bushing from the front side of the intermediate transport roller shaft. (5) Take off the intermediate transport roller. Bushing Pulley Screw Bushing Intermediate transport roller Bushing Fig. 4-9 [J] Pre-reading roller () Take off the pre-reading upper guide. ( P. 4- "[H] Pre-reading guide") () Take off the read motor drive section. ( P. 4-9 "[C] Read motor drive section") () Remove bushing, screw, pulley and bearing from the rear side of the pre-reading roller shaft. Screw Bushing Pulley Bearing Fig (4) Remove clip and bushing from the front side of the pre-reading roller shaft. (5) Take off the pre-reading roller. Pre-reading roller Bushing Clip Fig. 4-4 MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

51 [K] Post-reading roller () Take off the pre-reading lower guide. ( P. 4- "[H] Pre-reading guide") () Disconnect connector. Connector Fig. 4-4 () Take off the read motor drive section. ( P. 4-9 "[C] Read motor drive section") (4) Remove bushing, E-ring and pulley from the rear side of the post-reading roller shaft. Loosen setscrews and take off flange. Take off bearing. Flange Bearing 4 Bushing E-ring Fig. 4-4 Pulley (5) Remove clip and bushing from the front side of the post-reading roller shaft. Bushing Clip Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-5

52 (6) Open the RADF. Remove 4 screws, take off holders and platen guide. Holder Platen guide Holder Fig (7) Remove screws. Open the post-reading lower guide and take off the post-reading upper guide. Post-reading upper guide Fig (8) Take off the post-reading roller. Post-reading roller Fig MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

53 [L] Reverse registration roller () Take off the post-reading roller. ( P. 4-5 "[K] Post-reading roller") () Remove E-ring, pulley, pin and bushing from the rear side of the reverse registration roller shaft. Pin Bushing Bushing E-ring Pulley Fig () Remove clip and bushing from the front side of the reverse registration roller shaft. 4 Bushing Clip Fig (4) Open the RADF. Take off the reverse registration roller. Reverse registration roller Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-7

54 4. Motor / Motor drive section [A] Fan motor (M4) () Take off the rear cover. ( P. 4- "[B] Rear cover") () Disconnect connector. Then remove screws to take off the fan motor. Connector Fan motor Fig. 4-5 [B] Read motor (M) () Take off the rear cover. ( P. 4- "[B] Rear cover") () Take off the fan motor. ( P. 4-8 "[A] Fan motor (M4)") () Disconnect connector, and then remove spring. (Spring: Outside diameter of coil - ø0. mm, active coils -.5) Connector Spring Fig. 4-5 MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

55 (4) Remove screws, and then take off the read motor with its bracket. Note: When the unit is being assembled, temporarily tighten the screws removed at step (), and then attach the spring removed at step (). Then fully tighten these screws. Read motor Fig. 4-5 (5) Remove screws, and then take off the read motor. 4 Read motor Bracket Fig [C] Read motor drive section () Take off the rear cover. ( P. 4- "[B] Rear cover") () Take off the fan motor. ( P. 4-8 "[A] Fan motor (M4)") () Disconnect connector, and then remove spring. (Spring: Outside diameter of coil ø0. mm, active coils.5) Connector Spring Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-9

56 (4) Remove screws, and then take off the read motor with its bracket. Note: When the unit is being assembled, temporarily tighten the screws removed at step (), and then attach the spring removed at step (). Then fully tighten these screws. Read motor Fig (5) Remove spring. (Spring: Outside diameter of coil ø8.8 mm, active coils.5) (6) Release the harness from harness clamps. Spring Harness clamp Harness clamp Fig (7) Remove screws and then take off the bracket. Bracket Fig MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

57 (8) Take off timing belt and 4 bushings. Timing belt Bushing Bushing Fig (9) Loosen screw of the belt tensioner. (0) Remove the E-rings, and then take off the pulley and timing belt. Note: When the unit is being assembled, first install the parts removed at steps (5), (6), (7) and (9), and attach the spring removed at step (4) next. Then tighten the screw loosened at step (8). Screw Tensioner 4 E-ring Timing belt Fig [D] Original feed motor (M) () Take off the rear cover. ( P. 4- "[B] Rear cover") () Disconnect connector, and then remove spring. Note: Spring color and form <MR-04> Color: Silver, Outside diameter of coil: ø9.6 mm, acceptable turns of coil: 7 <MR-05> Color: Black, Outside diameter of coil: ø8 mm, acceptable turns of coil:.5 Connector Spring Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4 -

58 () Remove screws, and then take off the original feed motor with its bracket. Note: <MR-04> When the unit is being assembled, temporarily tighten the screws removed at step () and then attach the spring removed at step (). Then fully tighten these screws. Original feed motor Fig. 4-6 Note: <MR-05> Follow the procedure below for the assembly. (A) Loosen the screws [] of the sub bracket. (B) Temporarily tighten the screws removed in step () and then attach the spring [] removed in step (). Then fully tighten these screws. (C) Tighten the screws [] of the sub bracket. MR-05 [] [] Fig. 4-6 (4) Remove screws and then take off the original feed motor. Original feed motor Bracket Fig MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

59 [E] Original feed motor drive section () Take off the rear cover. ( P. 4- "[B] Rear cover") () Disconnect connector, and then remove spring. Note: Spring color and form <MR-04> Color: Silver, Outside diameter of coil: ø9.6 mm, Acceptable turns of coil: 7 <MR-05> Color: Black, Outside diameter of coil: ø8 mm, Acceptable turns of coil:.5 Connector Spring Fig () Remove screws, and then take off the original feed motor with its bracket. Note: When the unit is being assembled, temporarily tighten the screws removed at step () and then attach the spring removed at step (). Then fully tighten these screws. 4 Original feed motor Fig (4) Release the harness from harness clamps. (5) Remove E-ring and take off the bushing. Harness clamp Harness clamp E-ring Bushing Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4 -

60 (6) Remove screws [] and take off the sub bracket []. <MR-05> MR-05 [] [] Fig Note: <MR-04> When the unit is being assembled, temporarily tighten the screws removed in step () and then attach the spring removed in step (). Then fully tighten these screws. MR-05 [] [] <MR-05> Follow the procedure below for the assembly. (A) Loosen the screws [] of the sub bracket. (B) Temporarily tighten the screws removed in step () and then attach the spring [] removed in step (). Then fully tighten these screws. (C) Tighten the screws [] of the sub bracket. (7) Disconnect terminals of the switch. (8) Remove 4 screws, and then take off the bracket. Note: When connecting the terminal, make sure that the color of the harness is correct. Bracket Fig White Red Black Fig MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

61 (9) <MR-04> Take off the timing belt, bushings and pulleys. <MR-05> Take off the timing belt, bushings, E-ring, pulleys, and clutch. <MR-08> Take off the timing belt, bushings, pulleys, and clutch. MR-04 Pulley Bushing Timing belt Fig. 4-7 MR-05 Pulley Clutch 4 Bushing E-ring Timing belt Fig. 4-7 MR-08 Pulley Clutch Bushing Timing belt Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-5

62 [F] Original exit/reverse motor (M) () Take off the original feed motor drive section. ( P. 4- "[E] Original feed motor drive section") () Disconnect connector from the RADF control PC board. Fig () Remove screws, and then take off the original exit/reverse motor with its bracket. Original exit/reverse motor Fig (4) Remove screws, and then take off the original exit/reverse motor by sliding it from the bracket. Original exit/reverse motor Bracket Fig MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

63 4.4 Solenoid [A] Original pickup solenoid (SOL) () Take off the original feed motor drive section. ( P. 4- "[E] Original feed motor drive section") () Disconnect one connector. Remove screws and take off the original pickup solenoid with the bracket. Connector Original pickup solenoid Fig () Remove screws and take off the original pickup solenoid from the bracket. Original pickup solenoid Bracket Fig Note: When installing the original pickup solenoid, be sure to align the edge of the original pickup solenoid with the mark-off line on the frame. Mark-off line Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-7

64 [B] Gate solenoid (SOL) <MR-04 only> () Take off the original pickup solenoid. ( P. 4-7 "[A] Original pickup solenoid (SOL)") () Disconnect one connector. Remove screws and take off the gate solenoid with the bracket. Gate solenoid Connector Fig () Remove screws and take off the gate solenoid from the bracket. Gate solenoid Fig. 4-8 Note: When installing the gate solenoid, be sure to align the edge of the bracket with the markoff line on the frame. Mark-off line Fig. 4-8 MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

65 4.5 Sensor/switch [A] Original tray width sensor (S) () <MR-04 only> Take off the original reverse tray. ( P. 4-5 "[F] Original reverse tray") () <MR-04> Remove screws. Release 8 latches and separate the original tray into parts. <MR-05/08> Remove screws. Release 8 latches and separate the original tray into parts. MR-04 Fig MR-05/08 Fig () Remove screw and take off the cover. (4) Disconnect connector and take off the original tray width sensor. Cover Connector Original tray width sensor Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-9

66 Note: If washers ( pcs) and a pinion come off, assemble them in the order as shown in the illustration. Pinion Washer (Black: t= 0.5) Washer (Gold) Washer (Black: t= 0.) Fig [B] Original tray sensor (S) () <MR-04 only> Take off the original reverse tray. ( P. 4-5 "[F] Original reverse tray") () <MR-04> Remove screws. Release 8 latches and separate the original tray into parts. <MR-05/08> Remove screws. Release 8 latches and separate the original tray into parts. MR-04 Fig MR-05/08 Fig MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

67 () Remove screws and take off the holder. Holder Fig (4) Release latches and take off the original tray sensor. Original tray sensor 4 Fig [C] Jam access cover sensor (S) () Open the jam access cover. () Remove screw and take off the metal plate cover. Metal plate cover Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4 -

68 () Disconnect connector. Release latches and take off the jam access cover sensor. Jam access cover sensor Fig. 4-9 [D] Original empty sensor (S) () Open the jam access cover. () Remove screw and take off the metal plate cover. Metal plate cover Fig. 4-9 () Remove screw and take off the bracket [] and []. Fig MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

69 (4) Disconnect connector. Release latches and take off the original empty sensor. Original empty sensor Fig [E] Original length detection sensor (S4) () Take off the feeder lower guide. ( P. 4-0 "[E] Feeder lower guide") () Disconnect connector. Release latches and take off the original length detection sensor[]. 4 Fig [F] Original registration sensor (S5) () Take off the feeder lower guide. ( P. 4-0 "[E] Feeder lower guide") () Disconnect connector. Release latches and take off the original registration sensor. Original registration sensor Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4 -

70 [G] Original width detection sensor- (S6) () Take off the feeder lower guide. ( P. 4-0 "[E] Feeder lower guide") () Take off the actuator. () Disconnect connector. Release latches and take off the original width detection sensor-. Actuator Original width detection sensor- Fig [H] Original width detection sensor- (S7) () Take off the feeder lower guide. ( P. 4-0 "[E] Feeder lower guide") () Take off the actuator. () Disconnect connector. Release latches and take off the Original width detection sensor-. Actuator Original width detection sensor- Fig [I] Read sensor (S9) () Take off the pre-reading upper guide. ( P. 4- "[H] Pre-reading guide") () Release latches and take off the read sensor from the pre-reading upper guide. Read sensor Fig MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

71 [J] Original intermediate transport sensor (S8) () Take off the pre-reading upper guide. ( P. 4- "[H] Pre-reading guide") () Release latches and take off the original intermediate transport sensor from the prereading upper guide. Original intermediate transport sensor Fig. 4-0 [K] Original exit/reverse sensor (S0) 4 () Take off the pre-reading lower guide. ( P. 4- "[H] Pre-reading guide") () Disconnect connector. Connector Fig. 4-0 () Open the RADF. Remove screws, and then take off holders and platen guide. Holder Platen guide Holder Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-5

72 (4) Remove screws. Open the post-reading lower guide and take off the post-reading upper guide. Post-reading upper guide Fig (5) Release latches and take off the Original exit/reverse sensor from the post-reading upper guide. Original exit/reverse sensor Fig [L] RADF opening/closing sensor (S) <MR-04 only> () Take off the rear cover. ( P. 4- "[B] Rear cover") () Disconnect connector. Release latches and take off the RADF opening/closing sensor. RADF opening/closing sensor Fig MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved

73 [M] Original jam access cover opening/closing switch (SW) () Take off the bracket of the original feed motor drive section. ( P. 4- "[E] Original feed motor drive section") () Disconnect terminals. Remove screw and take off the original jam access cover opening/closing switch. Note: When connecting the terminal, make sure that the color of the harness is correct. Bracket Jam access cover opening/closing switch White Red Black Fig TOSHIBA TEC CORPORATION All rights reserved MR-04/05/08 DISASSEMBLY AND ASSEMBLY 4-7

74 4.6 PC Board [A] RADF control PC board (ADF board) () Take off the rear cover. ( P. 4- "[B] Rear cover") () Disconnect connectors. Fig () Release lock supports and edge spacer. Take off the ADF board. ADF board Fig [B] LED board (LED) () Take off the front cover. ( P. 4- "[A] Front cover") () Disconnect connector. Remove screw and take off the LED board (LED) []. Fig. 4-0 MR-04/05/08 DISASSEMBLY AND ASSEMBLY TOSHIBA TEC CORPORATION All rights reserved