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Oki MR-3024 Maintenance Manual
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Oki MR-3024 Maintenance Manual

Oki MR-3024 Maintenance Manual

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RADF
MR-3024 / 3025
Maintenance Manual
060114A

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Summary of Contents for Oki MR-3024

  • Page 1 RADF MR-3024 / 3025 Maintenance Manual 060114A...
  • Page 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.
  • Page 3 The installation and service shall be done by a qualified service technician. 1) When installing the MR-3024/3025 to the Equipment, be sure to follow the instructions described in the “Unpacking/Set-Up Procedure for the MR-3024/3025” booklet which comes with each unit of the MR-3024/3025.
  • Page 4 18)After completing installation, servicing and maintenance of the MR-3024/3025, return the MR-3024/ 3025 to its original state, and check operation.
  • Page 5 Adjustment of RADF Opening/Closing Sensor ............... 5-15 6. TROUBLESHOOTING ....................6-1 Troubleshooting for Mechanical Errors ................6-1 Troubleshooting for Electrical Errors................. 6-2 Jam ........................... 6-3 7. MAINTENANCE AND REWRITING ROM ..............7-1 Periodic Maintenance......................7-1 Rewriting ROM (Firmware Updating) ................7-2 MR-3024/3025 CONTENTS...
  • Page 6 8. CIRCUIT DIAGRAM / HARNESS DIAGRAM ............... 8-1 Circuit Diagram ......................... 8-1 Control PC Board Circuit....................8-2 8.2.1 MR-3024/3025 ....................8-2 MR-3024/3025 CONTENTS...
  • Page 7 SPECIFICATIONS Item MR-3024/3025 Maximum number of originals Up to 100 sheets or 16 mm in height. on the original feeding tray 35 - 80 g/m (9.3 - 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, COM-...
  • Page 8 MR-3024/3025 SPECIFICATIONS 1 - 2...
  • Page 9 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 (RADF) * MR-3024 only MR-3024/3025 GENERAL DESCRIPTION 2 - 1...
  • Page 10 Original reverse tray* Registration roller 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-3024 only MR-3024/3025 GENERAL DESCRIPTION 2 - 2...
  • Page 11 Electric Parts Layout SOL2 SOL1 Fig. 2-3 MR-3024/3025 GENERAL DESCRIPTION 2 - 3...
  • Page 12 Detects opening/closing of the RADF. sor* Jam access cover opening/ Switches between cutoff and supply state of the 24 V power by open- closing switch ing/closing of the jam access cover. * MR-3024 only 3) Solenoid Symbol Name Function SOL1 Original pickup solenoid Drives up and down the original pickup roller.
  • Page 13 Original exit/reverse sensor ( S10 ) Reset IC Jam access cover sensor ( S11 ) RADF opening/closing sensor ( S12 ) * Downlad jig Jam access cover opening/closing switch ( SW1 ) Fig. 2-4 * MR-3024 only MR-3024/3025 GENERAL DESCRIPTION 2 - 5...
  • Page 14 Data communication (RxD and TxD) between the scanner and the RADF has adopted the serial com- munication system which does not allow checking using testing devices to see whether the signals are transmitted/received properly in the field. RADF Equipment DF-ACK DF-REQ Fig. 2-5 MR-3024/3025 GENERAL DESCRIPTION 2 - 6...
  • Page 15 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. MR-3024/3025 DESCRIPTION OF OPERATIONS 3 - 1...
  • Page 16 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-3024/3025 DESCRIPTION OF OPERATIONS 3 - 2...
  • Page 17 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. MR-3024/3025 DESCRIPTION OF OPERATIONS 3 - 3...
  • Page 18 3.1.4 Original exit/reverse motor drive section <MR-3024> Gate solenoid Reverse flap Exit/reverse motor Exit Exit/reverse roller Reverse Fig. 3-4 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).
  • Page 19 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-3024/3025 DESCRIPTION OF OPERATIONS 3 - 5...
  • Page 20 A5-R LD / LT A3 / A4 8.5 x 8.5 / LT-R / LG / 13"LG A4-R / FOLIO COMPUTER B4 / B5 H (= high level): Open L (= low level): Short MR-3024/3025 DESCRIPTION OF OPERATIONS 3 - 6...
  • Page 21 B5-R A4-R / FOLIO A4-R A5-R 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-3024/3025 DESCRIPTION OF OPERATIONS 3 - 7...
  • Page 22 LT series (width sizes mixed at LG / LT-R standard) 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 MR-3024/3025 DESCRIPTION OF OPERATIONS 3 - 8...
  • Page 23 Power ON Standby RADF jam access cover OPEN? 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-3024/3025 DESCRIPTION OF OPERATIONS 3 - 9...
  • Page 24 Feed motor stops when registration Paper transported before the intermediate sensor detects trailing edge of transport roller? original. Skip to Feed motor rotation speed switches. First scan: Highest speed Second scan/later: Requested speed MR-3024/3025 DESCRIPTION OF OPERATIONS 3 - 10...
  • Page 25 Feed request signal received? Duplex? Registration roller also rotates, while read motor rotates and registration sensor ON. Transport for a certain amount of distance completed? Scanning start signal Exposure and scanning start. sent (level: High) MR-3024/3025 DESCRIPTION OF OPERATIONS 3 - 11...
  • Page 26 Scanning start signal Scanning completed. sent (level: High) 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. MR-3024/3025 DESCRIPTION OF OPERATIONS 3 - 12...
  • Page 27 Registration roller also rotates, while read motor rotates and registration sensor ON. Gate solenoid ON * MR-3024 only Transport for a certain amount of distance completed? Scanning start signal Exposure and scanning start. sent (level: High) Original exit/reverse sensor ON?
  • Page 28 Transport request signal received? Read motor and exit/reverse motor rotate at requested speed. Transport for a certain amount of distance completed? MR-3024/3025 DESCRIPTION OF OPERATIONS 3 - 14...
  • Page 29 Read sensor OFF? A certain period of time passed? 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-3024/3025 DESCRIPTION OF OPERATIONS 3 - 15...
  • Page 30 Original exit/reverse sensor OFF? A certain period of time passed? Transport for a certain amount of distance completed? Original exit/reverse motor and read motor stop. * MR-3024 only Gate solenoid OFF MR-3024/3025 DESCRIPTION OF OPERATIONS 3 - 16...
  • Page 31 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-3024/3025 DESCRIPTION OF OPERATIONS 3 - 17...
  • Page 32 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-3024/3025 DESCRIPTION OF OPERATIONS 3 - 18...
  • Page 33 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-3024/3025 DESCRIPTION OF OPERATIONS 3 - 19...
  • Page 34 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. MR-3024/3025 DESCRIPTION OF OPERATIONS...
  • Page 35 3.4.7 Drive Circuit for Gate Solenoid <MR-3024 only> Fig. 3-13 Gate solenoid driven by the driver transistor (Q1) 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 trans- ported to the reverse tray.
  • Page 36 MR-3024/3025 DESCRIPTION OF OPERATIONS 3 - 22...
  • Page 37 Open the RADF and remove 3 screws. Fig. 4-1 Close the RADF. Open the jam access cover and remove 2 screws. Fig. 4-2 Disconnect 1 connector [1] of the LED board. Fig. 4-3 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 1...
  • Page 38 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-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 2...
  • Page 39 Remove 1 clip and then the dial and pin. Clip Fig. 4-7 Remove 1 screw and the hinge pin. Hinge pin Fig. 4-8 Take off the jam access cover by sliding it. Jam access cover Fig. 4-9 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 3...
  • Page 40 Remove 2 screws. Lift up the feeder upper guide [1] by sliding it to the right. Note: Note: Do not pull the harness too strong. Fig. 4-11 Disconnect 1 connector from the RADF con- trol PC board. Fig. 4-12 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 4...
  • Page 41 Take off the original tray. Original tray Bushing Screw Fig. 4-13 [F] Original reverse tray <MR-3024 only> Take off the original tray. ( P. 4-4 "[E] Original tray") Original reverse tray Remove 1 screw and take off the original reverse tray.
  • Page 42 Remove 1 screw and take off the bracket [1] and [2]. Fig. 4-15 Remove 1 clip and slide 2 bushings. Clip Fig. 4-16 Take off the paper feeder unit. Paper feeder unit Fig. 4-17 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 6...
  • Page 43 Lock Lock Fig. 4-19 [C] Feed roller [PM] Take off the paper feeder unit. ( P. 4-6 "[A] Paper feeder unit") Remove 1 clip. Clip Fig. 4-20 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 7...
  • Page 44 Pull out the shaft and take off the feed roller. Feed roller Shaft Fig. 4-22 Note: Note: Make sure you assemble the feed roller with the one-way clutch in the correct direction. Lock Lock Fig. 4-23 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 8...
  • Page 45 Note: Note: Do not pull the harness out with too much force. Fig. 4-24 Take off the separation roller holder. Fig. 4-25 Take off the separation roller unit. Separation roller unit Fig. 4-26 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 9...
  • Page 46 Take off the paper feeder unit. ( P. 4-6 "[A] Paper feeder unit") Remove 2 screws and take off the stay. Fig. 4-28 Take off the jam access guide. Jam access guide Fig. 4-29 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 10...
  • Page 47 Take off the original exit/reverse motor. ( P. 4-24 "[F] Original exit/reverse motor (M3)") Remove 1 clip, 1 pulley, 1 pin and 1 bushing Pulley from the rear side of the exit/reverse roller shaft. Bushing Clip Fig. 4-32 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 11...
  • Page 48 Remove 1 clip and 1 bushing from the front side of the exit/reverse roller shaft. Leaf spring Clip Bushing Fig. 4-33 Take off the jam access guide. Jam access guide Fig. 4-34 Pull out the exit guide. Exit guide Fig. 4-35 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 12...
  • Page 49 ( P. 4-4 "[D] Left cover") Remove 1 screw and take off the hinge pin. Fig. 4-37 Disconnect 2 connectors. Remove 2 screws and take off the pre-reading guide. Pre-reading guide Fig. 4-38 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 13...
  • Page 50 Screw Bearing Bushing Pulley Fig. 4-40 Remove 1 clip and 1 bushing from the front side of the pre-reading roller shaft. Take off the pre-reading roller. Pre-reading roller Bushing Clip Fig. 4-41 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 14...
  • Page 51 Loosen 2 setscrews and take off 1 flange. Take off 1 bearing. Pulley Bushing E-ring Fig. 4-43 Remove 1 clip and 1 bushing from the front side of the post-reading roller shaft. Bushing Clip Fig. 4-44 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 15...
  • Page 52 Platen guide Holder Fig. 4-45 Remove 2 screws. Open the post-reading lower guide and take off the post-reading upper guide. Post-reading upper guide Fig. 4-46 Take off the post-reading roller. Post-reading roller Fig. 4-47 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 16...
  • Page 53 Remove 1 clip and 1 bushing from the front side of the reverse registration roller shaft. Bushing Clip Fig. 4-49 Open the RADF. Take off the reverse regis- tration roller. Reverse registration roller Fig. 4-50 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 17...
  • Page 54 Take off the fan motor. Connector ( P. 4-18 "[A] Fan motor (M4)") Disconnect 1 connector, and then remove 1 spring. (Spring: Outside diameter of coil ? ø10.2 mm, active coils - 12.5) Spring Fig. 4-52 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 18...
  • Page 55 Take off the fan motor. ( P. 4-18 "[A] Fan motor (M4)") Disconnect 1 connector, and then remove 1 spring. (Spring: Outside diameter of coil – ø10.2 mm, active coils – 12.5) Spring Fig. 4-55 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 19...
  • Page 56 –ø8.8 mm, active coils – 12.5) Spring Harness clamp Release the harness from 2 harness clamps. Harness clamp Fig. 4-57 Remove 3 screws and then take off the bracket. Bracket Fig. 4-58 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 20...
  • Page 57 ( P. 4-2 "[B] Rear cover") Disconnect 1 connector, and then remove 1 Connector spring. (Spring: Outside diameter of coil - ø9.6 mm, acceptable turns of coil - 12 turns) Spring Fig. 4-61 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 21...
  • Page 58 ( P. 4-2 "[B] Rear cover") Connector Disconnect 1 connector, and then remove 1 spring. (Spring: Outside diameter of coil – ø9.6 mm, acceptable turns of coil – 12 turns) Spring Fig. 4-64 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 22...
  • Page 59 Disconnect 3 terminals of the switch. Remove 4 screws, and then take off the Bracket bracket. Note: Note: White Black When connecting the terminal, make sure that the color of the harness is correct. Fig. 4-67 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 23...
  • Page 60 <MR-3024> MR-3024 Pulley Take off the timing belt, bushings and pul- leys. <MR-3025> Take off the timing belt, bushings, pulleys, and clutch. Bushing Timing belt Fig. 4-68 Pulley MR-3025 Clutch Bushing Timing belt Fig. 4-69 [F] Original exit/reverse motor (M3) Take off the original feed motor drive section.
  • Page 61 Original exit/reverse motor Fig. 4-71 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. 4-72 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 25...
  • Page 62 Bracket Fig. 4-74 Note: 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. 4-75 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 26...
  • Page 63 [B] Gate solenoid (SOL2) <MR-3024 only> Take off the original pickup solenoid. ( P. 4-26 "[A] Original pickup solenoid Gate solenoid (SOL1)") Disconnect one connector. Remove 2 screws and take off the gate solenoid with the bracket. Connector Fig. 4-76 Remove 2 screws and take off the gate sole- noid from the bracket.
  • Page 64 Sensor/switch [A] Original tray width sensor (S2) <MR-3024 only> MR-3024 Take off the original reverse tray. ( P. 4-5 "[F] Original reverse tray") <MR-3024> Remove 2 screws. Release 8 latches and separate the original tray into 2 parts. <MR-3025> Remove 3 screws. Release 8 latches and separate the original tray into 2 parts.
  • Page 65 Washer ( Gold ) Washer ( Black: t= 0.13 ) Pinion Fig. 4-82 [B] Original tray sensor (S1) <MR-3024 only> MR-3024 Take off the original reverse tray. ( P. 4-5 "[F] Original reverse tray") <MR-3024> Remove 2 screws. Release 8 latches and separate the original tray into 2 parts.
  • Page 66 Original tray sensor Fig. 4-86 [C] Jam access cover sensor (S11) Open the jam access cover. Remove 1 screw and take off the metal plate Metal plate cover cover. Fig. 4-87 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 30...
  • Page 67 Open the jam access cover. Remove 1 screw and take off the metal plate Metal plate cover cover. Fig. 4-89 Remove 1 screw and take off the bracket [1] and [2]. Fig. 4-90 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 31...
  • Page 68 [F] Original registration sensor (S5) Take off the feeder lower guide. Original registration sensor ( P. 4-10 "[E] Feeder lower guide") Disconnect 1 connector. Release 2 latches and take off the original registration sensor. Fig. 4-93 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 32...
  • Page 69 Read sensor (S9) Take off the pre-reading upper guide. ( P. 4-13 "[H] Pre-reading guide") Read sensor Release 2 latches and take off the read sen- sor from the pre-reading upper guide. Fig. 4-96 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 33...
  • Page 70 ( P. 4-13 "[H] Pre-reading guide") Connector Disconnect 1 connector. Fig. 4-98 Open the RADF. Remove 2 screws, and then Holder take off 2 holders and platen guide. Platen guide Holder Fig. 4-99 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 34...
  • Page 71 Original exit/reverse sensor upper guide. Fig. 4-101 [L] RADF opening/closing sensor (S12) <MR-3024 only> Take off the rear cover. ( P. 4-2 "[B] Rear cover") Disconnect 1 connector. Release 2 latches and take off the RADF opening/closing sen- sor.
  • Page 72 Disconnect 3 terminals. Remove 1 screw Black and take off the original jam access cover opening/closing switch. Note: Note: When connecting the terminal, make sure that the color of the harness is correct. Fig. 4-103 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 36...
  • Page 73 Fig. 4-105 [B] LED board (LED) Take off the front cover. ( P. 4-1 "[A] Front cover") Disconnect 1 connector. Remove 1 screw and take off the LED board (LED) [1]. Fig. 4-106 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 37...
  • Page 74 When the hinge stopper is taken off, the opening angle for the RADF becomes approx. 90 degrees. Take off the hinge stop- per only when it is needed for installation, maintenance service, etc. Fig. 4-108 MR-3024/3025 DISASSEMBLY AND ASSEMBLY 4 - 38...
  • Page 75 Open the RADF 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 RADF). Fig. 5-1 Remove the platen sheet. Fig. 5-2 MR-3024/3025 ADJUSTMENT 5 - 1...
  • Page 76 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-3024/3025 ADJUSTMENT 5 - 2...
  • Page 77 Loosen the hinge screws at the front side. Fig. 5-7 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 MR-3024/3025 ADJUSTMENT 5 - 3...
  • Page 78 Match the screw hole positions. Note: Note: Turn it clockwise: It moves toward the front side. Turn it counterclockwise: It moves toward the rear side. Fig. 5-10 Install the right-hand hinge screw at the rear side. Fig. 5-11 MR-3024/3025 ADJUSTMENT 5 - 4...
  • Page 79 (11) 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. 5-14 MR-3024/3025 ADJUSTMENT 5 - 5...
  • Page 80 "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. 5-15 MR-3024/3025 ADJUSTMENT 5 - 6...
  • Page 81 • 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. 5-17 MR-3024/3025 ADJUSTMENT 5 - 7...
  • Page 82 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. MR-3024/3025 ADJUSTMENT 5 - 8...
  • Page 83 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 "-". Fig. 5-20 Fig. 5-21 Shift the aligning plate in the direction of "+". Shift the aligning plate in the direction of "-". MR-3024/3025 ADJUSTMENT 5 - 9...
  • Page 84 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 "+". Fig. 5-23 Fig. 5-24 Shift the aligning plate in the direction of "-". Shift the aligning plate in the direction of "+". MR-3024/3025 ADJUSTMENT 5 - 10...
  • Page 85 Sided -> 2 Sided] and press the [START] button. Superimpose the chart on the copy and check the leading edge E of the chart and F of the copy. Fig. 5-25 Chart (Original) Fig. 5-26 Copy MR-3024/3025 ADJUSTMENT 5 - 11...
  • Page 86 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. MR-3024/3025 ADJUSTMENT 5 - 12...
  • Page 87 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. Note: Note: Changing one value shifts the copy image by 0.0423 mm. Fig. 5-28 Press the [ENTER] button. MR-3024/3025 ADJUSTMENT 5 - 13...
  • Page 88 If the copy image dimension “I” is larger than the chart dimension, enter a value smaller than the current one. • If the copy image dimension “I” is smaller than the chart dimension, enter a value larger than the current one. Fig. 5-29 Press the [OK] button. MR-3024/3025 ADJUSTMENT 5 - 14...
  • Page 89 Adjustment of RADF Opening/Closing Sensor <MR-3024 only> 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. 5-30 Fig. 5-31 MR-3024/3025 ADJUSTMENT 5 - 15...
  • Page 90 MR-3024/3025 ADJUSTMENT 5 - 16...
  • Page 91 YES→ Move the slides so that they contact the edges of the original 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 MR-3024/3025 TROUBLESHOOTING 6 - 1...
  • Page 92 Original width detection sensor-1 is ON when there is paper? ↓ NO→ 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-3024/3025 TROUBLESHOOTING 6 - 2...
  • Page 93 3) Check if the connector CN75 on the RADF board is disconnected from the original exit/reverse sensor or the harnesses are open circuited. 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-3024/3025 TROUBLESHOOTING 6 - 3...
  • Page 94 3) Check if the connector CN72 on the RADF board is disconnected from the RADF jam access cover opening/closing switch or the harnesses are open circuited. Correct if any. 4) Replace the RADF jam access cover opening/closing switch. 5) Replace the RADF board. MR-3024/3025 TROUBLESHOOTING 6 - 4...
  • Page 95 RADF open jam <MR-3024> 1) Close the RADF if it is opened. Remove if there is any original before closing it. 2) Is the RADF opening/closing sensor working? (Perform the input check) * If it is working properly, proceed to 6. If not, check 3 to 5 below.
  • Page 96 MR-3024/3025 TROUBLESHOOTING 6 - 6...
  • Page 97 Separation roller 4-10 Feed roller Registration roller 4-30 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 MR-3024/3025 MAINTENANCE AND REWRITING ROM 7 - 1...
  • Page 98 Rewriting ROM (Firmware Updating) For updating firmware, refer to " FIRMWARE UPDATING" in the Service Manual for MFP. MR-3024/3025 MAINTENANCE AND REWRITING ROM 7 - 2...
  • Page 99 CIRCUIT DIAGRAM / HARNESS DIAGRAM Circuit Diagram Fig. 8-1 MR-3024/3025 CIRCUIT DIAGRAM / HARNESS DIAGRAM 8 - 1...
  • Page 100 Control PC Board Circuit 8.2.1 MR-3024/3025 Fig. 8-2 MR-3024/3025 CIRCUIT DIAGRAM / HARNESS DIAGRAM 8 - 2...
  • Page 101 Fig. 8-3 MR-3024/3025 CIRCUIT DIAGRAM / HARNESS DIAGRAM 8 - 3...
  • Page 102 Fig. 8-4 MR-3024/3025 CIRCUIT DIAGRAM / HARNESS DIAGRAM 8 - 4...
  • Page 103 Fig. 8-5 MR-3024/3025 CIRCUIT DIAGRAM / HARNESS DIAGRAM 8 - 5...
  • Page 104 Fig. 8-6 MR-3024/3025 CIRCUIT DIAGRAM / HARNESS DIAGRAM 8 - 6...
  • Page 105 Fig. 8-7 MR-3024/3025 CIRCUIT DIAGRAM / HARNESS DIAGRAM 8 - 7...
  • Page 106 MR-3024/3025 CIRCUIT DIAGRAM / HARNESS DIAGRAM 8 - 8...

This manual is also suitable for:

Mr-3025