SERVICE MANUAL AUTOMATIC DOCUMENT FEEDER MR-2017/2020 Model: MR-2017/2020 Publish Date: December 2005 File No.
Trademarks • • • • • • • • The official name of Windows 95 is Microsoft Windows 95 Operating System. The official name of Windows 98 is Microsoft Windows 98 Operating System. The official name of Windows Me is Microsoft Windows Millennium Edition Operating System. The official name of Windows 2000 is Microsoft Windows 2000 Operating System. The official name of Windows XP is Microsoft Windows XP Operating System.
General Precautions for Installation/Servicing/Maintenance for the MR-2017/2020 The installation and service should be done by a qualified service technician. 1) When installing the MR-2017/2020 to the Equipment, be sure to follow the instructions described in the “Unpacking/Set-Up Procedure for the MR-2017/2020” booklet which comes with each unit of the MR-2017/2020. 2) The MR-2017/2020 should be installed by an authorized/qualified person. 3) The equipment must be grounded for safety.
CONTENTS MR-2017/2020 1. SPECIFICATION ........................................................................................................... 1-1 2. GENERAL DESCRIPTION............................................................................................ 2-1 2.1 2.2 2.3 2.4 2.5 2.6 Main Components................................................................................................................ 2-1 Sectional View .....................................................................
8.3 Control PC Board Circuit .....................................................................................................
1. SPECIFICATION 1 Item MR-2017 MR-2020 Maximum number of originals on the original feeding tray Up to 100 sheets or 16 mm in height. * 50 - 80 g/m2 (13.3 - 21.3 lb. Bond) ← Acceptable paper size A5-R, A4, A4-R, B5, B5-R, B4, A3, FOLIO, ST-R, LT, LT-R, LG, LD, COMPUTER ← Acceptable paper weight 50 - 127 g/m2 (13.3 lb. Bond - 33.8 lb.
MR-2017/2020 SPECIFICATION © 2005 - 2009 TOSHIBA TEC CORPORATION All rights reserved 1-2
2. 2.1 GENERAL DESCRIPTION Main Components Original tray section 2 Drive/Control section Original exit tray section Feeding/Transporting section Fig.
2.2 Sectional View R4 R2 FLP R8 R3 TRY2 R1 TRY1 R5 R6 R7 Fig.
2.3 Electric Parts Layout SW M1 SOL S7 S8 ADF S2 S1 2 M2 S5 S6 S4 S3 Fig.
2.4 Symbols and Functions of Various Components 1) Motors Symbol Name Function M1 Original feed motor Drives the original feed roller, pickup roller and registration roller. M2 Read motor Transports originals by driving the intermediate transport roller, front read roller, rear read roller and exit roller. 2) Sensors and Switches Symbol Name Function S1 Original tray sensor Detects the length of the original set on the original tray.
2.
2.6 Description of Interface Signals The following 6 lines are used to transmit/receive signals between the equipment and the ADF. REQ ......................Communication request signal (from equipment to the ADF) DF-REQ ................Communication request signal (from the ADF to equipment) DF-ACK.................Communication request acknowledging signal (from the ADF to equipment) ACK.......................Communication request acknowledging signal (from equipment to the ADF) TxD .....................
3. DESCRIPTION OF OPERATIONS 3.1 DRIVE SYSTEM Feed motor drive section 3 Read motor drive section Fig. 3-1 3.1.1 Outline Originals are transported by the original feed motor and read motor. Each motor has a drive section for the following operations: Original feed motor drive section: Read motor drive section: picks up originals and drives the registration roller. transports originals and drives parts such as the exit roller.
3.1.2 Original feed motor drive section Original feed motor Oneway clutch Pickup roller Feed roller Oneway clutch Separation roller Pickup Registration roller Feed Fig. 3-2 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.
3.1.3 Read motor drive section Read motor Exit roller 3 Pre-reading roller Post-reading roller Intermediate transfer roller 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.
3.2 Original Size Detection Original tray width sensor Fig. 3-3 3.2.1 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. 3.2.2 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.
3.3 FLOW CHART Power ON Standby YES ADF jam access cover OPEN? 3 NO NO All sensors OFF? Jam YES NO Empty sensor ON? YES NO Feed request signal received? Standby YES Original on feeding tray? NO Jam YES Pickup solenoid ON, pickup roller goes down. D Feed motor rotates forward. A Fig.
A NO Original registration sensor ON? YES A certain period of time passed? Feed motor stops after transporting for a certain period of time. NO YES Jam A certain period of time passed? NO YES Registration roller rotates. (Feed motor rotates reverse.) Read motor rotates. Paper transprted before the intermideate transport roller? Monitoring registration sensor by parallel processing. Feed motor stops when registration sensor detects trailing edge of original. Skip to D .
B Original intermediate transport sensor ON? NO YES A certain period of time passed? Feed motor and read motor stop after transporting for certain period of time. NO YES Jam Feed request signal received? NO YES Registration roller also rotates, while read motor rotates and registration sensor ON. Transport for a certain amount of distance completed? NO YES Scanning start signal sent (level: High) Exposure and scanning start. C Fig.
C Original exit sensor ON? NO YES A certain period of time passed? NO YES Read sensor OFF? Jam YES A certain period of time passed? NO NO YES Scanning start signal sent (level: Low) D Original exit sensor OFF? Scanning completed. NO YES A certain period of time passed? Transport for a certain amount of distance completed? NO NO YES Jam YES Read motor stops. END Fig.
3.4 3.4.1 DESCRIPTION OF CIRCUIT Drive Circuit for Feed Motor 3 Fig. 3-8 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.
3.4.2 Drive Circuit for Read Motor Fig. 3-9 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.
3.4.3 Reset Circuit Fig. 3-10 3 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 R116 and R117.
MR-2017/2020 DESCRIPTION OF OPERATIONS © 2005 - 2009 TOSHIBA TEC CORPORATION All rights reserved 3 - 12
4. 4.1 DISASSEMBLY AND ASSEMBLY Cover [A] Front cover (1) Open the RADF and remove 3 screws. 4 Fig. 4-1 (2) (3) Close the RADF. Open the jam access cover and remove 2 screws. Fig. 4-2 (4) Take off the front cover toward you. Front cover Fig.
[B] Rear cover (1) Open the jam access cover and remove 4 screws. Fig. 4-4 (2) Raise the original tray and take off the rear cover upward. Rear cover Fig. 4-5 [C] Jam access cover (1) (2) (3) Take off the front cover. ( P. 4-1 "[A] Front cover") Take off the rear cover. ( P. 4-2 "[B] Rear cover") Remove 1 clip and then the dial and pin. Pin Dial Clip Fig.
(4) Remove 1 screw and the hinge pin. Hinge pin Fig. 4-7 (5) Take off the jam access cover by sliding it. Jam access cover 4 Fig. 4-8 [D] Left cover (1) Remove 2 screws and take off the left cover. Left cover Fig.
[E] Original tray (1) Take off the front cover. ( P. 4-1 "[A] Front cover") (2) Take off the rear cover. ( P. 4-2 "[B] Rear cover") (3) Take off the paper feeder unit. ( P. 4-5 "[A] Paper feeder unit") (4) Remove 2 screws. Lift up the feeder upper guide by sliding it to the right. Note: Do not pull the harness too strong. Feeder upper guide Fig. 4-10 (5) Disconnect 1 connector from the ADF control PC board. Fig. 4-11 (6) (7) Remove 1 screw and take off the bushing. Take off the original tray.
4.2 Roller [A] Paper feeder unit (1) (2) Open the jam access cover. Remove 2 screws and take off the bracket. Bracket 4 Fig. 4-13 (3) Remove 1 clip and slide 2 bushings. Clip Bushing Fig. 4-14 (4) Take off the paper feeder unit. Paper feeder unit Fig.
[B] Pickup roller [PM] (1) (2) Take off the paper feeder unit. ( P. 4-5 "[A] Paper feeder unit") Remove 1 clip and pull out the shaft. Take off the pickup roller. Shaft Clip Pin Pickup roller Fig. 4-16 Notes: 1. Be careful not to drop the pin because it will come off when the shaft is pulled out. 2. Make sure you assemble the pickup roller with the one-way clutch in the correct direction. Lock Lock Fig. 4-17 [C] Feed roller [PM] (1) (2) Take off the paper feeder unit. ( P.
(3) Slide the pulley and remove 1 pin. Pin Pulley Fig. 4-19 (4) Pull out the shaft and take off the feed roller. Feed roller Shaft Fig. 4-20 Note: Make sure you assemble the feed roller with the one-way clutch in the correct direction. Lock Lock Fig.
[D] Separation roller [PM] (1) Take off the paper feeder unit. ( P. 4-5 "[A] Paper feeder unit") (2) Remove 2 screws. Slide the feeder upper guide to the right and raise it. Note: Do not pull the harness out with too much force. Feeder upper guide Fig. 4-22 (3) Remove 2 screws and take off the separation roller holder and separation roller unit. Separation roller unit Separation roller holder Fig. 4-23 (4) Remove 1 bushing and clip, and then take off the separation roller.
[E] Feeder lower guide (1) (2) (3) Take off the original tray. ( P. 4-4 "[E] Original tray") Take off the paper feeder unit. ( P. 4-5 "[A] Paper feeder unit") Remove 2 screws and take off the stay. Stay Fig. 4-25 (4) Take off the jam access guide. Jam access guide Fig. 4-26 (5) Remove 4 screws. Disconnect 1 connector and take off the feeder lower guide. Feeder lower guide Fig.
[F] Registration roller (1) (2) (3) Take off the feeder lower guide. ( P. 4-9 "[E] Feeder lower guide") Take off the original feed motor drive section. ( P. 4-16 "[A] Original feed motor (M1)") Remove 1 E-ring and 1 bushing from the front side of the registration roller shaft. Also, remove 1 bushing, 1 pulley, 1 E-ring and 1 bushing from the rear side of the shaft, and then take off the registration roller. Bushing Registration roller E-ring Bushing Pulley Bushing E-ring Fig.
(5) Take off the jam access guide. Jam access guide Fig. 4-31 (6) Pull out the exit guide. Exit guide 4 Fig. 4-32 (7) Take off the exit roller. Exit roller Fig.
[H] Pre-reading guide (1) (2) (3) (4) (5) Take off the front cover. ( P. 4-1 "[A] Front cover") Take off the rear cover. ( P. 4-2 "[B] Rear cover") Take off the jam access cover. ( P. 4-2 "[C] Jam access cover") Take off the left cover. ( P. 4-3 "[D] Left cover") Remove 1 screw and take off the hinge pin. Hinge pin Fig. 4-34 (6) Disconnect 1 connector. Remove 2 screws and take off the pre-reading guide. Pre-reading guide Fig.
[J] (1) (2) (3) Pre-reading roller Take off the pre-reading guide. ( P. 4-12 "[H] Pre-reading guide") Take off the read motor drive section. ( P. 4-18 "[C] Read motor (M2)") Remove 1 bushing, 1 screw, 1 pulley and 1 bearing from the rear side of the pre-reading roller shaft. Screw Bearing Bushing Pulley Fig. 4-37 (4) (5) Remove 1 clip and 1 bushing from the front side of the pre-reading roller shaft. Take off the pre-reading roller. 4 Pre-reading roller Bushing Clip Fig.
(3) (4) Take off the read motor drive section. ( P. 4-19 "[D] Read motor drive section") Remove 1 bushing, 1 E-ring and 1 pulley from the rear side of the post-reading roller shaft. Loosen 2 setscrews and take off 1 flange. Take off 1 bearing. Flange Bushing Bearing Pulley E-ring Fig. 4-40 (5) Remove 1 clip, timing belt, 1 pulley, 1pin, 1 E-ring and 1 bushing from the front side of the post-reading roller shaft. Pin Bushing E-ring Pulley Timing belt Clip Fig. 4-41 (6) Open the RADF.
(7) Remove 2 screws. Open the post-reading lower guide and take off the post-reading upper guide. Post-reading upper guide Fig. 4-43 (8) Take off the post-reading roller. 4 Post-reading roller Fig.
4.3 Motor / Motor drive section [A] Original feed motor (M1) (1) (2) Take off the rear cover. ( P. 4-2 "[B] Rear cover") Disconnect 1 connector, and then remove 1 spring. (Spring: Outside diameter of coil – ø9.6 mm, acceptable turns of coil – 12 turns) Connector Spring Fig. 4-45 (3) Remove 3 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 (3) and then attach the spring removed at step (2).
[B] Original feed motor drive section (1) (2) (3) Take off the the original feed motor. ( P. 4-16 "[A] Original feed motor (M1)") Release the harness from 3 harness clamps. Remove 1 E-ring and take off the bushing. Harness clamp E-ring Harness clamp Bushing Fig. 4-48 (4) (5) Disconnect 3 terminals of the switch. Remove 4 screws, and then take off the bracket. Note: When connecting the terminal, make sure that the color of the harness is correct. 4 Bracket White Red Black Fig.
[C] Read motor (M2) (1) (2) Take off the rear cover. ( P. 4-2 "[B] Rear cover") Disconnect 1 connector, and then remove 1 spring. (Spring: Outside diameter of coil – ø10.2 mm, active coils – 12.5) Connector Spring Fig. 4-51 (3) Remove 3 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 (3), and then attach the spring removed at step (2). Then fully tighten these screws. Read motor Fig.
[D] Read motor drive section (1) (2) (3) Take off the rear motor. ( P. 4-18 "[C] Read motor (M2)") Remove 1 spring. (Spring: Outside diameter of coil –ø8.8 mm, active coils – 12.5) Release the harness from 2 harness clamps. Spring Harness clamp Harness clamp Fig. 4-54 (4) Remove 3 screws and then take off the bracket. 4 Bracket Fig. 4-55 (5) Take off 1 timing belt and 4 bushings. Timing belt Bushing Bushing Fig.
(6) (7) Loosen 1 screw of the belt tensioner. Remove the 4 E-rings, and then take off the 4 pulleys and timing belt. Note: When the unit is being assembled, first install the parts removed at steps (3), (4), (5) and (7), and attach the spring removed at step (2) next. Then tighten the screw loosened at step (6). Screw Tensioner Timing belt E-ring Fig.
4.4 Solenoid [A] Original pickup solenoid (SOL) (1) (2) Take off the original feed motor drive section. ( P. 4-17 "[B] Original feed motor drive section") Disconnect 1 connector. Remove 2 screws and take off the original pickup solenoid with the bracket. Connector Original pickup solenoid 4 Fig. 4-58 (3) Remove 2 screws and take off the original pickup solenoid from the bracket. Original pickup solenoid Bracket Fig.
4.5 Sensor/switch [A] Original tray width sensor (S2) (1) (2) Take off the original tray. ( P. 4-4 "[E] Original tray") Remove 3 screws. Release 8 latches and separate the original tray into 2 parts. Fig. 4-61 (3) (4) Remove 1 screw and take off the cover. Disconnect 1 connector and take off the original tray width sensor. Cover Connector Original tray width sensor Fig. 4-62 Note: If washers (3 pcs) and a pinion come off, assemble them in the order as shown in the illustration.
[B] Original tray sensor (S1) (1) (2) Take off the original tray. ( P. 4-4 "[E] Original tray") Remove 3 screws. Release 8 latches and separate the original tray into 2 parts. Fig. 4-64 (3) Remove 2 screws and take off the holder. 4 Holder Fig. 4-65 (4) Release 2 latches and take off the original tray sensor. Original tray sensor Fig.
[C] Jam access cover sensor (S7) (1) (2) Open the jam access cover. Remove 1 screw and take off the metal plate cover. Metal plate cover Fig. 4-67 (3) Disconnect 1 connector. Release 2 latches and take off the jam access cover sensor. Jam access cover sensor Fig. 4-68 [D] Original empty sensor (S3) (1) (2) Open the jam access cover. Remove 1 screw and take off the metal plate cover. Metal plate cover Fig.
(3) Remove 2 screws and take off the bracket. Bracket Fig. 4-70 (4) Disconnect 1 connector. Release 2 latches and take off the original empty sensor. 4 Original empty sensor Fig. 4-71 [E] Original registration sensor (S4) (1) (2) Take off the feeder lower guide. ( P. 4-9 "[E] Feeder lower guide") Disconnect 1 connector. Release 2 latches and take off the original registration sensor. Original registration sensor Fig.
[F] Read sensor (S5) (1) (2) Take off the pre-reading guide. ( P. 4-12 "[H] Pre-reading guide") Release 2 latches and take off the read sensor from the pre-reading upper guide. Read sensor Fig. 4-73 [G] Original exit/reverse sensor (S6) (1) (2) Take off the pre-reading guide. ( P. 4-12 "[H] Pre-reading guide") Disconnect 1 connector. Connector Fig. 4-74 (3) Open the ADF. Remove 4 screws, and then take off 2 holders and platen guide. Holder Platen guide Holder Fig.
(4) Remove 2 screws. Open the post-reading lower guide and take off the post-reading upper guide. Post-reading upper guide Fig. 4-76 (5) Release 2 latches and take off the Original exit sensor from the post-reading upper guide. Original exit sensor Fig. 4-77 [H] ADF opening/closing sensor (S8) (1) (2) Take off the rear cover. ( P. 4-2 "[B] Rear cover") Disconnect 1 connector. Release 2 latches and take off the ADF opening/closing sensor. RADF opening/closing sensor Fig.
[I] Jam access cover opening/closing switch (SW) (1) Take off the bracket of the original feed motor drive section. ( P. 4-17 "[B] Original feed motor drive section") (2) Disconnect 3 terminals. Remove 1 screw and take off the 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.
4.6 PC Board [A] ADF control PC board (ADF board) (1) (2) Take off the rear cover. ( P. 4-2 "[B] Rear cover") Disconnect 9 connectors. 4 Fig. 4-80 (3) Release 2 lock supports and 3 edge spacer. Take off the ADF board. ADF board Fig.
4.7 Others [A] Hinge stopper (1) Remove 1 screw and then take off the hinge stopper. Hinge stopper Fig. 4-82 Note: When the hinge stopper is taken off, the opening angle for the RADF becomes approx. 90 degrees. Take off the hinge stopper only when it is needed for installation, maintenance service, etc. Fig.
5. 5.1 ADJUSTMENT Adjustment of Position Perform this adjustment when the ADF is not installed in the correct position. Note: Check if the image adjustment for the equipment is performed properly before this adjustment of the ADF. (See the Service Handbook of the applicable equipment.) [A] Checking (1) Open the ADF and install 2 positioning pins (the positioning pins are installed to the back side of the hinge which is on the left side of the ADF). 5 Fig. 5-1 (2) Remove the platen sheet. Fig.
(3) Close the ADF and check if the positioning pins fit the holes on the ADF. Fig. 5-3 [B] Adjustment If the pins cannot be fitted into the holes, perform the adjustment according to the following procedure. (1) Remove the right-hand hinge screw at the rear side. Fig. 5-4 (2) Remove the bracket on the left-hand hinge. (MR-2020 only) Fig.
(3) Loosen the left-hand hinge screw at the rear side. Fig. 5-6 (4) Loosen the hinge screws at the front side. 5 Fig. 5-7 (5) Position the pins with the holes on the ADF by moving it so that the pins fit into the holes when the ADF is closed. Fig.
(6) Tighten the left-hand hinge screw at the rear side. Fig. 5-9 (7) Loosen the hole position adjustment screws on the right hand side. Fig. 5-10 (8) Match the screw hole positions. Fig.
(9) Install the right-hand hinge screw at the rear side. Fig. 5-12 (10) Install the bracket on the left-hand hinge. (MR-2020 only) 5 Fig. 5-13 (11) Tighten the hinge screws at the front side. Fig.
(12) Place the platen sheet on the original glass and align it to the top left corner. Close the ADF gently and open it to check if the platen sheet is attached properly. Fig.
5.2 Adjustment of Height Note: Check if the image adjustment for the equipment is performed properly before this adjustment of the ADF. (See the Service Handbook of the applicable equipment.) [A] Checking (1) (2) (3) Close the ADF. Light the exposure lamp. • Turn the power ON while pressing [0] and [4] simultaneously. • Key in [261], press the [START] button, and then wait until the CIS unit stops. • Key in [267] and then press the [START] button.
[B] Adjustment (1) (2) Close the ADF. Adjust it by turning the adjustment screws on the hinges. • Adjust the height on the rear side by means of the screw on the hinge on the feed side of the ADF. Turn it clockwise ................. Heightened Turn it counterclockwise ...... Lowered Fig. 5-17 • Adjust the gap on the rear side by means of the screw on the hinge on the feed side of the ADF. Turn it clockwis .................... Lowered Turn it counterclockwise ...... Heightened Fig.
5.3 Adjustment of Skew Note: Check if the image adjustment for the equipment is performed properly before this adjustment of the RADF. (See the Service Handbook of applicable equipment.) Also, the RADF position and height shall be adjusted properly. [A] Checking Check the image using the chart (original) with vertical and horizontal lines in the following procedure. Fig.
(2) If the image skew is "C" as shown in the figure below, shift the aligning plate in the direction of "+", and if "D", shift it to "-". C D Fig. 5-21 Fig. 5-22 Shift the aligning plate in the direction of "+". Shift the aligning plate in the direction of "-".
5.4 Adjustment of the Leading Edge Position Note: Check if the image adjustment for the equipment is performed properly before this adjustment of the ADF. (See the Service Handbook of applicable equipment.) Also, the ADF position and height shall be adjusted properly. [A] Checking Check the image using the chart (original) with vertical and horizontal lines in the following procedure.
5.5 Adjustment of Horizontal Position Note: Check if the image adjustment for the equipment is performed properly before this adjustment of the ADF. (See the Service Handbook of applicable equipment.) Also, the ADF position and height shall be adjusted properly. [A] Checking Check the image using the chart (original) with a center line in the following procedure. (1) (2) (3) Place the chart provided as an original with its face up on the original tray of the ADF. Press the [START] button.
5.6 Adjustment of Copy Ratio Note: Check if the image adjustment for the equipment is performed properly before this adjustment of the ADF. (See the Service Handbook of applicable equipment.) Also, the ADF position and height shall be adjusted properly. [A] Checking Check the image using the chart (original) with vertical and horizontal lines in the following procedure. (1) (2) (3) Place the chart provided as an original with its face up on the original tray of the ADF. Press the [START] button.
5.7 Adjustment of ADF Opening/Closing Sensor A Adjust the bracket position so that the sensor is turned ON when the height “A” becomes 100 mm or less (within the empty weight falling limit). Fig. 5-28 Fig.
6. 6.1 TROUBLESHOOTING Troubleshooting for Mechanical Errors 1) Multiple originals are transported simultaneously Original abnormally curled or folded? YES→ Flatten the original and set it again ↓ NO Separation roller is dirty? ↓ YES→ Clean the roller with alcohol NO Replace the separation rollers with new ones 2) Original is not transported to registration roller Original thicker than specified? YES→ Use originals with permissible thickness.
6.
6.3 Jam Jam not reaching the original registration sensor 1) Clean the pickup roller, feed roller and separation roller if they are stained. 2) Flatten the original if it is folded or excessively curled and place it again. 3) Is the original registration sensor working? (Perform the input check) * If it is working properly, proceed to 7. If not, check 4 to 6. 4) Check if the connector CN74 on the RADF board is disconnected from the original registration sensor or the harnesses are open circuited.
Stop jam at the registration sensor 1) Clean the registration roller if it is stained. 2) Is the registration sensor working? (Perform the input check) * If it is working properly, proceed to 6. If not, check 3 to 5 below. 3) Check if the connector CN74 on the RADF board is disconnected from the registration sensor or the harnesses are open circuited. Correct if any. 4) Replace the registration sensor. 5) Replace the RADF board. 6) Replace the registration roller if it is worn out.
Cover open jam in the read ready status 1) Close the RADF jam access cover or the front cover if they are opened in the read ready status. 2) IIs the RADF jam access cover sensor working? (Perform the input check) 3) Check if the connector CN75 on the RADF board is disconnected from the RADF jam access cover sensor or the harnesses are open circuited. Correct if any. 4) Replace the RADF jam access cover sensor. 5) Replace the RADF board.
MR-2017/2020 TROUBLESHOOTING © 2005 - 2009 TOSHIBA TEC CORPORATION All rights reserved 6-6
7. 7.1 MAINTENANCE AND REWRITING ROM Periodic Maintenance 4 5 6 7 3 2 1 9 8 Fig. 7-1 Symbols used in the checklist Cleaning Lubrication/Coating A: Clean with alcohol L: Launa 40 B: Clean with soft pad, SI: Silicon oil cloth or vacuum cleaner W: White grease (Molykote X5-6020) AV:Alvania No.2 Replacement Operation check The number of sheets consumed before replacement (Value x 1,000).
7.2 Rewriting ROM (Firmware Updating) It is feasible to update the firmware automatically by connecting the download jig to the PC board and turning the power of the equipment ON. The download jig K-PWA-DLM-320 is used. < Procedure > (1) (2) (3) (4) Turning OFF the power of the equipment and take off the ADF rear cover. Connect the download jig with the connector (CN81) on the PC board. While pressing [0] and [8] simultaneously, turn ON the power.
8. CIRCUIT DIAGRAM / HARNESS DIAGRAM 8.1 • Assembly of PC Board Component side Fig. 8-1 • Soldered side 8 Fig.
Circuit Diagram 8.
+5V TLENGTH-S SG TWIDTH0-S TWIDTH1-S TWIDTH2-S SG +5V ALIGN-S SG +5V WIDTH2-S SG +5V WIDTH1-S SG +5V LENGTH-S SG +5V DFOPEN-S SG CN73 CN74 J73 J74 J75 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 +5V ALIGN SG 12 11 10 9 8 7 6 5 4 3 2 1 6 5 4 3 2 1 J86 J92 J86 J92 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 +5V EXIT-S SG +5V TLENG-S SG TWID 0S TWID 1S TWID 2S SG +5V ALIGN SG +5V DFOPEN-S SG +5V EMPTY-S SG 12 11 10 J94 J93 J94 J93 1 2 3 1 2 3 +5V JCOVU-S SG 12 11 10 1 2 3 1
8.3 Control PC Board Circuit Fig.
8 Fig.
Fig.
8 Fig.
Fig.
8 Fig.
MR-2017/2020 CIRCUIT DIAGRAM / HARNESS DIAGRAM © 2005 - 2009 TOSHIBA TEC CORPORATION All rights reserved 8 - 10
