• Code: CB2
• Description: Delivery motor is abnormal
• Remedy: MJ-1011 Rotate the delivery motor by hand. Does it rotate smoothly? NO Fix the mechanism. YES Is the wiring between the finisher controller PC board and delivery motor correct? NO Correct the wiring. YES Is the delivery motor clock sensor (S1) working properly? NO Replace the sensor. YES Is the problem solved by replacing the delivery motor (M1)? NO Replace the finisher controller PC board. YES Replace the motor.
  MJ-1012/1013 (Finsher section) Rotate the delivery motor by hand. Does it rotate smoothly? NO Fix the mechanism. YES Is the delivery motor clock sensor (PI10) working normally? NO Replace the sensor. YES Does the voltage between J11-4 and -5 on the finisher controller PC board become 24V when the delivery motor starts rotating? NO Replace the finisher controller PC board. YES Is the wiring between the delivery motor and finisher controller PC board correct? YES Correct the wiring. NO Replace the motor.

• Code: CB3
• Description: Tray lift motor is abnormal
• Remedy: MJ-1012/1013 (Finisher section) [Procedure 1] Is the tray home position sensor (PI8) working normally? NO Replace the sensor. YES Is the tray elevation mechanism normal? NO Fix the mechanism. YES Is 24V DC supplied to the tray lift motor (M5) from the finisher controller PC board when the tray is being driven? NO Replace the finisher controller PC board. YES Is the wiring between the finisher controller PC board and the tray lift motor (M5) correct? YES Correct the wiring. NO Replace the tray lift motor (M5). [Procedure 2] Does the tray reach the tray upper limit detecting switch (MS5)? NO Lower the position of the tray. YES Is the tray upper limit detecting switch (MS5) working normally? NO Replace the switch. YES Is the wiring between the finisher controller PC board and the tray upper limit detecting switch correct? YES Correct the wiring. NO Replace the finisher controller PC board. [Procedure 3] Does the tray move up/down? NO Is the power supplied to the motor from the finisher controller PC board when the tray is moving? NO Replace the finisher controller PC board. YES Is there any problem with the tray elevation mechanism? YES Replace the tray lift motor (M5). NO Fix the tray elevation mechanism. YES Are the tray lift motor clock sensor-1/-2 (PI9/PI19) working normally? NO Replace the sensors. YES Replace the finisher controller PC board.

• Code: CB4
• Description: Alignment motor is abnormal
• Remedy: MJ-1012/1013 (Finisher section) Is the alignment guide home position sensor (PI6) working normally? NO Replace the sensor. YES Is the wiring between the finisher controller PC board and the alignment motor (M3) correct? YES Correct the wiring. NO Is there any mechanical problem with the alignment guide movement path? YES Fix the mechanism. NO Is the problem solved by replacing the alignment motor? NO Replace the finisher controller PC board. YES END

• Code: CB5
• Description: Staple motor is abnormal
• Remedy: MJ-1011 Is the wiring between the stapler and finisher controller PC board correct? NO Correct the wiring. YES Is the problem solved by replacing the stapler? NO Replace the finisher controller PC board. YES END
  MJ-1012/1013 (Finisher section) Is the wiring between the stapler and the finisher controller PC board correct? YES Connect or replace the harness. NO Is the problem solved by replacing the stapler? NO Replace the finisher controller PC board. YES END

• Code: CB6
• Description: Stapler shift motor is abnormal
• Remedy: MJ-1012/1013 (Finisher section) Is the stapler shift home position sensor (PI7) working normally? NO Replace the sensor. YES Is the wiring between the finisher controller PC board and the stapler shift motor (M4) correct? YES Correct the wiring. NO Is there any mechanical problem with the stapler stand motion path? YES Fix the mechanism. NO Is the problem solved by replacing the stapler shift motor? NO Replace the finisher controller PC board. YES EN

• Code: CB7
• Description: Height sensor is abnormal
• Remedy: MJ-1012/1013 (Finisher section) [Procedure 1] Is the problem solved by turning the power of the copier OFF and ON? YES END NO Is the wiring between the finisher controller PC board and the height sensor (PS1) correct? YES Correct the wiring. NO Is the voltage between J6-2(+) and J6-4(-) on the finisher controller PC board 5V DC? NO Replace the finisher controller PC board. YES Re-adjust the height sensor. Replace the height sensor if it still causes the problem. [Procedure 2] Is the connector J6 on the finisher controller PC board, J114 of the height sensor (PS1) or relay connector J212 disconnected? YES Connect the connector(s). NO Is the voltage between J6-2(+) and J6-4(-) on the finisher controller PC board 5V DC? NO Replace the finisher controller PC board. YES Is the wiring between the finisher controller PC board and height sensor correct? YES Correct the wiring. NO Replace the height sensor. [Procedure 3] Is the problem solved by readjusting the DIP switch? YES END NO Is the wiring between the finisher controller PC board and height sensor (PS1) correct? YES Correct the wiring. NO Is the voltage between J6-2(+) and J6-4(-) on the finisher controller PC board 5V DC? NO Replace the finisher controller PC board. YES Replace the height sensor.

• Code: CB8
• Description: Backup RAM data are abnormal
• Remedy: MJ-1012/1013 (Finisher section) (with MJ-6001 connected) Is the problem solved by turning the power of the copier OFF and ON? YES END NO Is the problem solved by replacing the finisher controller PC board? NO Replace the punch driver PC board. YES END

• Code: CB9
• Description: Saddle stitcher paper pushing plate motor is abnormal
• Remedy: [Procedure 1] Is the paper pushing plate home position sensor (PI14S) working normally? NO Replace the sensor. YES Is the paper pushing plate motor (M8S) operating at the fixed timing? YES Replace the saddle stitcher controller PC board. NO Is the paper pushing plate drive mechanism normal? NO Fix the mechanism. YES Is the problem solved by replacing the paper pushing plate motor (M8S)? NO Replace the saddle stitcher controller PC board. YES END [Procedure 2] Is the paper pushing plate top position sensor (PI15S) working normally? NO Replace the sensor. YES Is the paper pushing plate motor (M8S) operating at the fixed timing? YES Replace the saddle stitcher controller PC board. NO Is there any problem with the paper pushing plate drive mechanism? YES Fix the mechanism. NO Is the problem solved by replacing the paper pushing plate motor (M8S)? NO Replace the saddle stitcher controller PC board. YES END [Procedure 3] Is the paper pushing plate motor clock sensor (PI1S) working normally? NO Replace the sensor. YES Is the paper pushing plate motor (M8S) operating at the fixed timing? YES Replace the saddle stitcher controller PC board. NO Is there any problem with the pushing plate drive mechanism? YES Fix the mechanism. NO Is the problem solved by replacing the paper pushing plate motor (M8S)? NO Replace the saddle stitcher controller PC board. YES END