• Code: CB2
• Description: Delivery motor abnormal
• Remedy: Rotate the delivery motor by hand. Does it rotate smoothly? N: Correct the mechanism. Y: Is the delivery motor clock sensor (PI10) working normally? N: Replace the sensor. Y: Does the voltage between J11-4 and -5 on the finisher controller PC board become 24V when the delivery motor starts rotating? N: Replace the finisher controller PC board. Y: Is the wiring between the delivery motor and finisher controller PC board correct? N: Correct the wiring. Y: Replace the motor.

• Code: CB3
• Description: Tray lift motor abnormal
• Remedy: [Procedure 1] Is the tray home position sensor (PI8) working normally? N: Replace the sensor. Y: Is the tray elevation mechanism normal? N: Correct the mechanism. Y: Is 24V DC supplied to the tray lift motor (M5) from the finisher controller PC board when the tray is being driven? N: Replace the finisher controller PC board. Y: Is the wiring between the finisher controller PC board and the tray lift motor (M5) correct? N: Correct the wiring. Y: Replace the tray lift motor (M5).
  [Procedure 2] Does the tray reach the tray upper limit detecting switch (MS5)? Y: Lower the position of the tray. N: Is the tray upper limit detecting switch (MS5) working normally? N: Replace the switch. Y: Is the wiring between the finisher controller PC board and the tray upper limit detecting switch correct? N: Correct the wiring. Y: Replace the finisher controller PC board.
  [Procedure 3] Does the tray move up/down? N: Is the power supplied to the motor from the finisher controller PC board when the tray is moving? N: Replace the finisher controller PC board. Y: Is there any problem with the tray elevation mechanism? N: Replace the tray lift motor (M5). Y: Correct the tray elevation mechanism. Y: Are the tray lift motor clock sensor-1/-2 (PI9/PI19) working normally? N: Replace the sensors. Y: Replace the finisher controller PC board.

• Code: CB4
• Description: Alignment motor abnormal
• Remedy: Is the alignment guide home position sensor (PI6) working normally? N: Replace the sensor. Y: Is the wiring between the finisher controller PC board and the alignment motor (M3) correct? N: Correct the wiring. Y: Is there any mechanical problem with the alignment guide movement path? Y: Correct the mechanism. N: Is the problem solved by replacing the alignment motor? N: Replace the finisher controller PC board. Y: End

• Code: CB5
• Description: Staple motor abnormal
• Remedy: Is the wiring between the stapler and the finisher controller PC board correct? N: Correct the wiring. Y: Is the problem solved by replacing the stapler? N: Replace the finisher controller PC board. Y: End

• Code: CB6
• Description: Stapler shift motor abnormal
• Remedy: Is the stapler shift home position sensor (PI7) working normally? N: Replace the sensor. Y: Is the wiring between the finisher controller PC board and the stapler shift motor (M4) correct? N: Correct the wiring. Y: Is there any mechanical problem with the stapler stand motion path? Y: Correct the mechanism. N: Is the problem solved by replacing the stapler shift motor? N: Replace the finisher controller PC board. Y: End

• Code: CB7
• Description: Height sensor abnormal
• Remedy: [Procedure 1] Is the problem solved by turning the power of the copier OFF and ON Y: End N: Is the wiring between the finisher controller PC board and the height sensor (PS1) correct? N: Correct the wiring. Y: Is the voltage between J6-2(+) and J6-4(-) on the finisher controller PC board 5V DC? N: Replace the finisher controller PC board. Y: Readjust 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? Y: Connect the connector. N: Is the voltage between J6-2(+) and J6-4(-) on the finisher controller PC board 5V DC? N: Replace the finisher controller PC board. Y: Is the wiring between the finisher controller PC board and height sensor correct? N: Correct the wiring. Y: Replace the height sensor.
  [Procedure 3] Is the problem solved by readjusting the DIP switch? Y: End N: Is the wiring between the finisher controller PC board and height sensor (PS1) correct? N: Correct the wiring. Y: Is the voltage between J6-2(+) and J6-4(-) on the finisher controller PC board 5V DC? N: Replace the finisher controller PC board. Y: Replace the height sensor.

• Code: CB8
• Description: Backup RAM data abnormal
• Remedy: Is the problem solved by turning the power of the copier OFF and ON? Y: End N: Is the problem solved by replacing the finisher controller PC board? N: Replace the punch driver PC board. Y: End

• Code: CB9
• Description: Saddle stitcher/paper pushing plate motor abnormal
• Remedy: [Procedure 1] Is the paper pushing plate home position sensor (PI14S) working normally? N: Replace the sensor. Y: Is the paper pushing plate motor (M8S) operating at the specified timing? Y: Replace the saddle stitcher controller PC board. N: Is the paper pushing plate drive mechanism normal? N: Correct the mechanism. Y: Is the problem solved by replacing the paper pushing plate motor (M8S)? N: Replace the saddle stitcher controller PC board. Y: End
  [Procedure 2] Is the paper pushing plate top position sensor (PI15S) working normally? N: Replace the sensor. Y: Is the paper pushing plate motor (M8S) operating at the specified timing? Y: Replace the saddle stitcher controller PC board. N: Is there any problem with the paper pushing plate drive mechanism? Y: Correct the mechanism. N: Is the problem solved by replacing the paper pushing plate motor (M8S)? N: Replace the saddle stitcher controller PC board. Y: End
  [Procedure 3] Is the paper pushing plate motor clock sensor (PI1S) working normally? N: Replace the sensor. Y: Is the paper pushing plate motor (M8S) operating at the specified timing? Y: Replace the saddle stitcher controller PC board. N: Is there any problem with the pushing plate drive mechanism? Y: Correct the mechanism. N: Is the problem solved by replacing the paper pushing plate motor (M8S)? N: Replace the saddle stitcher controller PC board. Y: End