Oki MR-3022 Service Manual

Reversing automatic document feeder

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SERVICE MANUAL

REVERSING AUTOMATIC DOCUMENT FEEDER

MR-3022

Model: MR-3022_OKI

Publish Date: September 2011

File No. SME11003200

R110821K3200

Ver00_2011_09

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Summary of Contents for Oki MR-3022

Page 1 SERVICE MANUAL REVERSING AUTOMATIC DOCUMENT FEEDER MR-3022 Model: MR-3022_OKI Publish Date: September 2011 File No. SME11003200 R110821K3200 Ver00_2011_09...
Page 2 Other company names and product names in this manual are the trademarks of their respective companies. © 2011 OKI DATA CORPORATION All rights reserved Under the copyright laws, this manual cannot be reproduced in any form without prior written permission of OKI DATA CORPORATION.
Page 3 The installation and service shall be done by a qualified service technician. 1) When installing the MR-3022 to the Equipment, be sure to follow the instructions described in the “Unpacking/Set-Up Procedure for the MR-3022” booklet which comes with each unit of the MR- 3022.
Page 5: Table Of Contents
6. TROUBLESHOOTING ....................6-1 6.1 Troubleshooting for Mechanical Errors................6-1 6.2 Troubleshooting for Electrical Errors ................... 6-2 6.3 Jam ............................6-4 7. MAINTENANCE AND REWRITING ROM ..............7-1 7.1 Periodic Maintenance ......................7-1 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 CONTENTS...
Page 6 7.2 Rewriting ROM (Firmware Updating)................... 7-2 8. CIRCUIT DIAGRAM / HARNESS DIAGRAM ............... 8-1 8.1 Assembly of PC Board......................8-1 8.2 Circuit Diagram ........................8-2 8.3 Control PC Board Circuit ..................... 8-4 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved CONTENTS...
Page 7: Specifications
Unpacking Instruction (1 set) Charts (A4/LT: 1 sheet each) Mounting screws (6 pcs) Positioning pins (2 pcs) Washer (1 pc) Stopper bracket (1 pc) Stopper bracket fixing screw (2 pcs) © 2011 OKI DATA CORPORATION All rights reserved MR-3022 SPECIFICATIONS 1 - 1...
Page 9: General Description
Original exit/reverse motor (M3) Fan motor (M4) Original pickup solenoid (SOL1) Gate solenoid (SOL2) RADF opening/closing sensor (S12) Jam access cover opening/closing switch (SW1) RADF control PC board (ADF) © 2011 OKI DATA CORPORATION All rights reserved MR-3022 GENERAL DESCRIPTION 2 - 1...
Page 10: Sectional View
TRY3 Original exit tray Intermediate transfer roller FLP1 Exit gate Pre-reading roller FLP2 Reverse flap Post-reading roller Pickup roller Reverse registration roller Feed roller Exit/reverse roller MR-3022 © 2011 OKI DATA CORPORATION All rights reserved GENERAL DESCRIPTION 2 - 2...
Page 12: Symbols And Functions Of Various Components
Drives the reverse flap. (Switches the flap to the reverse side when turned to ON.) 4) PC board Symbol Name Function RADF control PC board Controls the RADF. (ADF board) MR-3022 © 2011 OKI DATA CORPORATION All rights reserved GENERAL DESCRIPTION 2 - 4...
Page 13: Diagram Of Signal Blocks
Reset IC Jam access cover sensor ( S11 ) RADF opening/closing sensor ( S12 ) Downlad jig Jam access cover opening/closing switch ( SW1 ) Fig. 2-4 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 GENERAL DESCRIPTION 2 - 5...
Page 15: Description Of Operations
The original exit/reverse motor also rotates reversely when the originals are being reversed and trans- ported, compared to its rotational direction when they are being exited. The read motor always rotates in a constant direction. © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DESCRIPTION OF OPERATIONS...
Page 16: Original Feed Motor Drive Section
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-3022 © 2011 OKI DATA CORPORATION All rights reserved DESCRIPTION OF OPERATIONS 3 - 2...
Page 17: Read Motor Drive Section
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. © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DESCRIPTION OF OPERATIONS 3 - 3...
Page 18: Original Exit/Reverse Motor Drive Section
The reversed original is aligned with the reverse registration roller, and then the other side of the origi- nal is scanned. When the scanning is completed, the original is exited to the original exit tray. MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DESCRIPTION OF OPERATIONS 3 - 4...
Page 19: Original Size Detection
8.5 x 8.5 / LT-R / LG / 13"LG A4-R / FOLIO COMPUTER B4 / B5 H (= high level): Open L (= low level): Short © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DESCRIPTION OF OPERATIONS 3 - 5...
Page 20: Original Width Detection Sensors-1 And -2 / Original Length Detection Sensor
A4 series (width sizes mixed at B5-R standard) Original length Original width Original width Size determined Original tray width detection sensor sensor-1 sensor-2 B5-R B5-R A5-R MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DESCRIPTION OF OPERATIONS 3 - 6...
Page 21 Original length Original width Original width Size determined Original tray width detection sensor sensor-1 sensor-2 LT-R / LG / 8.5x8.5 / 13”LG LD / LT ST-R © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DESCRIPTION OF OPERATIONS 3 - 7...
Page 22: Flow Chart
All sensors OFF? Empty sensor ON? Feed request signal received? Standby Original on feeding tray? Pickup solenoid ON, pickup roller goes down, feed motor rotates forward. MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DESCRIPTION OF OPERATIONS 3 - 8...
Page 23 Skip to Feed motor rotation speed switches. First scan: Highest speed Second scan/later: Requested speed © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DESCRIPTION OF OPERATIONS 3 - 9...
Page 24 ON. Transport for a certain amount of distance completed? Scanning start signal Exposure and scanning start. sent (level: High) MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DESCRIPTION OF OPERATIONS 3 - 10...
Page 25 Original exit/reverse sensor OFF? A certain period Read motor stops. of time passed? Transport for a certain amount of distance completed? Original exit/reverse motor stops. © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DESCRIPTION OF OPERATIONS 3 - 11...
Page 26 A certain period Original exit/reverse of time passed? motor rotates. Read sensor OFF? A certain period of time passed? Scanning start signal Scanning completed. sent (level: Low) MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DESCRIPTION OF OPERATIONS 3 - 12...
Page 27 Transport request signal received? Read motor and exit/reverse motor rotate at requested speed. Transport for a certain amount of distance completed? © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DESCRIPTION OF OPERATIONS 3 - 13...
Page 28 Scanning start signal Scanning completed. sent (level: Low) Original exit/reverse sensor OFF? A certain period of time passed? Transport for a certain amount of distance completed? MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DESCRIPTION OF OPERATIONS 3 - 14...
Page 29 OFF? A certain period of time passed? Transport for a certain amount of distance completed? Original exit/reverse motor and read motor stop. Gate solenoid OFF © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DESCRIPTION OF OPERATIONS 3 - 15...
Page 30: Description Of Circuit
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). MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DESCRIPTION OF OPERATIONS 3 - 16...
Page 31: Drive Circuit For Read Motor
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). © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DESCRIPTION OF OPERATIONS 3 - 17...
Page 32: Drive Circuit For Exit Motor
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”. MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DESCRIPTION OF OPERATIONS 3 - 18...
Page 33: Reset Circuit
When the PSOL-ON-Signal level is set to “L”, Q2 is turned ON, the power of 24V is applied to the coil for recovery operation, the solenoid is turned OFF, and then the pickup roller goes up. © 2011 OKI DATA CORPORATION All rights reserved MR-3022...
Page 34: Drive Circuit For Gate Solenoid
When the GSOL-ON-Signal level is set to “L”, the reverse flap goes down and the original is trans- ported to the reverse tray. MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DESCRIPTION OF OPERATIONS 3 - 20...
Page 35: Disassembly And Assembly
Close the RADF. Open the jam access cover and remove 2 screws. Fig. 4-2 Take off the front cover toward you. Front cover Fig. 4-3 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 1...
Page 36 P. 4-1 "[A] Front cover") Dial Take off the rear cover. P. 4-2 "[B] Rear cover") Remove 1 clip and then the dial and pin. Clip Fig. 4-6 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 2...
Page 37 Take off the jam access cover by sliding it. Jam access cover Fig. 4-8 [D] Left cover Remove 2 screws and take off the left cover. Left cover Fig. 4-9 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 3...
Page 38 Disconnect 1 connector from the RADF con- trol PC board. Fig. 4-11 Remove 1 screw and take off the bushing. Take off the original tray. Original tray Bushing Screw Fig. 4-12 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 4...
Page 39 Take off the original tray. P. 4-4 "[E] Original tray") Original reverse tray Remove 1 screw and take off the original reverse tray. Fig. 4-13 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 5...
Page 40: Roller
Remove 2 screws and take off the bracket. Bracket Fig. 4-14 Remove 1 clip and slide 2 bushings. Clip Fig. 4-15 Take off the paper feeder unit. Paper feeder unit Fig. 4-16 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 6...
Page 41 Lock Fig. 4-18 [C] Feed roller [PM] Take off the paper feeder unit. P. 4-6 "[A] Paper feeder unit") Remove 1 clip. Clip Fig. 4-19 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 7...
Page 42 Feed roller Shaft Fig. 4-21 Note: Note: Make sure you assemble the feed roller with the one-way clutch in the correct direction. Lock Lock Fig. 4-22 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 8...
Page 43 Separation roller holder Fig. 4-24 Remove 1 bushing and clip, and then take off the separation roller. Separation roller Bushing Clip Fig. 4-25 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 9...
Page 44 Take off the jam access guide. Jam access guide Fig. 4-27 Remove 4 screws. Disconnect 1 connector Feeder lower guide and take off the feeder lower guide. Fig. 4-28 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 10...
Page 45 Remove 1 screw and take off the leaf spring. Remove 1 clip and 1 bushing from the front side of the exit/reverse roller shaft. Leaf spring Clip Bushing Fig. 4-31 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 11...
Page 46 Take off the jam access guide. Jam access guide Fig. 4-32 Pull out the exit guide. Exit guide Fig. 4-33 Take off the exit/reverse roller. Exit/reverse roller Fig. 4-34 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 12...
Page 47 Remove 1 bushing from the front side of the intermediate transport roller shaft. Take off the intermediate transport roller. Intermediate transport roller Bushing Fig. 4-37 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 13...
Page 48 Pre-reading roller Bushing Clip Fig. 4-39 [K] Post-reading roller Take off the pre-reading lower guide. P. 4-13 "[H] Pre-reading guide") Connector Disconnect 1 connector. Fig. 4-40 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 14...
Page 49 Bushing Clip Fig. 4-42 Open the RADF. Remove 4 screws, take off Holder 2 holders and platen guide. Platen guide Holder Fig. 4-43 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 15...
Page 50 Remove 1 E-ring, 1 pulley, 1 pin and 1 bush- ing from the rear side of the reverse registra- tion roller shaft. Pulley E-ring Bushing Fig. 4-46 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 16...
Page 51 Bushing Clip Fig. 4-47 Open the RADF. Take off the reverse regis- tration roller. Reverse registration roller Fig. 4-48 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 17...
Page 52: Motor / Motor Drive Section
Take off the fan motor. P. 4-18 "[A] Fan motor (M4)") Disconnect 1 connector. Then remove 2 screws to take off the read motor. Read motor Fig. 4-50 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 18...
Page 53 Remove 1 spring. (Spring: Outside diameter of coil –ø8.8 mm, active coils – 12.5) Spring Harness clamp Release the harness from 2 harness clamps. Harness clamp Fig. 4-53 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 19...
Page 54 (5), (6), (7) and (9), and attach the spring removed at step (4) next. Then tighten the screw loosened at step (8). Timing belt E-ring Fig. 4-56 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 20...
Page 55 (3) and then attach the spring removed at step (2). Then fully tighten these screws. Original feed motor Fig. 4-59 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 21...
Page 56 When connecting the terminal, make sure that the color of the harness is correct. Fig. 4-61 Take off the timing belt, bushings and pulley. Pulley Bushing Timing belt Fig. 4-62 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 22...
Page 57 Fig. 4-64 Remove 2 screws, and then take off the orig- inal exit/reverse motor by sliding it from the Original exit/reverse motor bracket. Bracket Fig. 4-65 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 23...
Page 58: Solenoid
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. 4-68 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 24...
Page 59 When installing the gate solenoid, be sure to align the edge of the bracket with the mark- off line on the frame. Mark-off line Fig. 4-71 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 25...
Page 60: Sensor/Switch
Washer ( Black: t= 0.25 ) assemble them in the order as shown in the illustration. Washer ( Gold ) Washer ( Black: t= 0.13 ) Pinion Fig. 4-74 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 26...
Page 61 Remove 2 screws and take off the holder. Holder Fig. 4-76 Release 2 latches and take off the original tray sensor. Original tray sensor Fig. 4-77 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 27...
Page 62 [D] Original empty sensor (S3) Open the jam access cover. Remove 1 screw and take off the metal plate Metal plate cover cover. Fig. 4-80 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 28...
Page 63 P. 4-10 "[E] Feeder lower guide") Original length detection sensor Disconnect 1 connector. Release 2 latches and take off the original length detection sen- sor. Fig. 4-83 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 29...
Page 64 Take off the actuator. Disconnect 1 connector. Release 2 latches and take off the Original width detection sen- sor-2. Actuator Original width detection sensor-2 Fig. 4-86 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 30...
Page 65 Fig. 4-88 [K] Original exit/reverse sensor (S10) Take off the pre-reading lower guide. P. 4-13 "[H] Pre-reading guide") Connector Disconnect 1 connector. Fig. 4-89 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 31...
Page 66 Post-reading upper guide Fig. 4-91 Release 2 latches and take off the Original exit/reverse sensor from the post-reading Original exit/reverse sensor upper guide. Fig. 4-92 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 32...
Page 67 Note: Note: When connecting the terminal, make sure that the color of the harness is correct. Fig. 4-94 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 33...
Page 68: Pc Board
P. 4-2 "[B] Rear cover") Disconnect 11 connectors. Fig. 4-95 Release 2 lock supports and 3 edge spacer. Take off the ADF board. ADF board Fig. 4-96 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved DISASSEMBLY AND ASSEMBLY 4 - 34...
Page 69: Others
RADF becomes approx. 90 degrees. Take off the hinge stop- per only when it is needed for installation, maintenance service, etc. Fig. 4-98 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 DISASSEMBLY AND ASSEMBLY 4 - 35...
Page 71: Adjustment
(the positioning pins are installed to the back side of the hinge which is on the left side of the RADF). Fig. 5-1 Remove the platen sheet. Fig. 5-2 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 ADJUSTMENT 5 - 1...
Page 72 If the pins cannot be fitted into the holes, perform the adjustment according to the following procedure. Remove the right-hand hinge screw at the rear side. Fig. 5-4 Remove the bracket on the left-hand hinge. Fig. 5-5 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved ADJUSTMENT 5 - 2...
Page 73 Position the pins with the holes on the RADF by moving it so that the pins fit into the holes when the RADF is closed. Fig. 5-8 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 ADJUSTMENT 5 - 3...
Page 74 Tighten the left-hand hinge screw at the rear side. Fig. 5-9 Loosen the hole position adjustment screws on the right hand side. Fig. 5-10 Match the screw hole positions. Fig. 5-11 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved ADJUSTMENT 5 - 4...
Page 75 Install the right-hand hinge screw at the rear side. Fig. 5-12 (10) Install the bracket on the left-hand hinge. Fig. 5-13 (11) Loosen the hinge screws at the front side. Fig. 5-14 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 ADJUSTMENT 5 - 5...
Page 76 (12) Place the platen sheet on the original glass and align it to the top left corner. Close the RADF gently and open it to check if the platen sheet is attached properly. Fig. 5-15 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved ADJUSTMENT 5 - 6...
Page 77: Adjustment Of Height
"B" from the left hand side of the equipment. If the value is not within the tolerance, perform the adjustment according to the following procedure. [Tolerance of the gap] Rear side: 0 - 0.5 mm Front side: 0 mm Fig. 5-16 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 ADJUSTMENT 5 - 7...
Page 78 Adjust the gap on the rear side by means of the screw on the hinge on the feed side of the RADF. Turn it clockwise ....Lowered Turn it counterclockwise ..Heightened Fig. 5-18 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved ADJUSTMENT 5 - 8...
Page 79: Adjustment Of Skew
Place the chart provided as an original with its face up on the original tray of the RADF, select [2 Sided -> 2 Sided] and press the [START] button. Superimpose the chart on the copy and check the inclination of the copy image. © 2011 OKI DATA CORPORATION All rights reserved MR-3022 ADJUSTMENT...
Page 80 "+", and if "D", shift it to "-". Fig. 5-21 Fig. 5-22 Shift the aligning plate in the direction of "+". Shift the aligning plate in the direction of "-". MR-3022 © 2011 OKI DATA CORPORATION All rights reserved ADJUSTMENT 5 - 10...
Page 81 ", and if "D", shift it to "+". Fig. 5-24 Fig. 5-25 Shift the aligning plate in the direction of "-". Shift the aligning plate in the direction of "+". © 2011 OKI DATA CORPORATION All rights reserved MR-3022 ADJUSTMENT 5 - 11...
Page 82: Adjustment Of The Leading Edge Position
If the leading edge (F) margin of the copy image is smaller than the (E) margin of the chart, enter a value larger than the current one. Note: Note: Changing one value shifts the copy image by 0.1 mm. MR-3022 © 2011 OKI DATA CORPORATION All rights reserved ADJUSTMENT 5 - 12...
Page 83 If the leading edge (F) margin of the copy image is smaller than the (E) margin of the chart, enter a value larger than the current one. Note: Note: Changing one value shifts the copy image by 0.1 mm. Press the [OK] button. © 2011 OKI DATA CORPORATION All rights reserved MR-3022 ADJUSTMENT 5 - 13...
Page 84: Adjustment Of Horizontal Position
Fig. 5-28 • If the center line of the copy image is shifted to the rear side of the equipment, enter a value smaller than the current one. MR-3022 © 2011 OKI DATA CORPORATION All rights reserved ADJUSTMENT 5 - 14...
Page 86: Adjustment Of Copy Ratio
• If the copy image dimension “I” is smaller than the chart dimension, enter a value larger than the current one. Fig. 5-30 Press the [OK] button. MR-3022 © 2011 OKI DATA CORPORATION All rights reserved ADJUSTMENT 5 - 16...
Page 87: Adjustment Of Radf Opening/Closing Sensor
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. 5-31 Fig. 5-32 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 ADJUSTMENT 5 - 17...
Page 89: Troubleshooting
Check the scanner adjustment 5) Black streaks appear on copied image ADF original glass is dirty? ↓ YES→ Clean the glass with a dry/squeezed cloth Check the scanner unit © 2011 OKI DATA CORPORATION All rights reserved MR-3022 TROUBLESHOOTING 6 - 1...
Page 90: Troubleshooting For Electrical Errors
Replace the sensor or harness Original width detection sensor-2 is ON when there is paper? ↓ NO→ Replace the sensor or harness Check or replace the RADF board MR-3022 © 2011 OKI DATA CORPORATION All rights reserved TROUBLESHOOTING 6 - 2...
Page 91 Connect the fan harness properly or replace it Power supplied at CN84-1pin when FAN is ON? ↓ YES→ Replace the fan motor Check or replace the RADF board © 2011 OKI DATA CORPORATION All rights reserved MR-3022 TROUBLESHOOTING 6 - 3...
Page 92: Jam
Correct if any. 4) Replace the original exit/reverse sensor 5) Replace the RADF board. 6) Replace the read roller if it is worn out. MR-3022 © 2011 OKI DATA CORPORATION All rights reserved TROUBLESHOOTING 6 - 4...
Page 93 Correct if any. 4) Replace the RADF opening/closing sensor. 5) Replace the RADF board. 6) Is the RADF opening/closing sensor adjusted within the specified range? © 2011 OKI DATA CORPORATION All rights reserved MR-3022 TROUBLESHOOTING 6 - 5...
Page 94 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-3022 © 2011 OKI DATA CORPORATION All rights reserved TROUBLESHOOTING 6 - 6...
Page 95: Maintenance And Rewriting Rom
Intermediate transfer roller 3-13 Front read roller 3-14 Rear read roller Reverse registration roller 3-10 Exit/reverse roller 4-25 10 Platen sheet B or A 1-25 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 MAINTENANCE AND REWRITING ROM 7 - 1...
Page 96: Rewriting Rom (Firmware Updating)
Turn OFF the power of the equipment and remove the download jig. Install the RADF rear cover. * If rewriting data is failed, turn OFF the power and repeat the procedure. Connector Fig. 7-2 MR-3022 © 2011 OKI DATA CORPORATION All rights reserved MAINTENANCE AND REWRITING ROM 7 - 2...
Page 97: Circuit Diagram / Harness Diagram
CIRCUIT DIAGRAM / HARNESS DIAGRAM Assembly of PC Board • Component side Fig. 8-1 • Soldered side Fig. 8-2 © 2011 OKI DATA CORPORATION All rights reserved MR-3022 CIRCUIT DIAGRAM / HARNESS DIAGRAM 8 - 1...

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