• Code: CB6
• Description: Abnormal stapler shift motor
• Remedy: 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 END

• Code: CB7
• Description: Abnormal height sensor
• Remedy: [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 and J213 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: Abnormal backup RAM data
• Remedy: Is the problem solved by turning the power of the copier OFF and ON? YES END NO Replace the finisher controller PC board.

• Code: CB9
• Description: Abnormal saddle stitcher paper pushing plate motor
• 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

• Code: CBA
• Description: Abnormal saddle stitcher stitch motor (front)
• Remedy: Are the front and rear stitchers and their stands installed properly? NO Install them properly. YES Are the stitcher home position switches (MS7S/MS5S) on the front and rear stitchers working normally? NO Replace the front or rear stitcher. YES Are the front and rear stitchers operating at the fixed timing? NO Replace the front or rear stitcher. YES Check the wiring between the stitcher and saddle stitcher controller PC board. If there is no problem, replace the controller PC board.

• Code: CBB
• Description: Abnormal saddle stitcher stitch motor (rear)
• Remedy: Are the front and rear stitchers and their stands installed properly? NO Install them properly. YES Are the stitcher home position switches (MS7S/MS5S) on the front and rear stitchers working normally? NO Replace the front or rear stitcher. YES Are the front and rear stitchers operating at the fixed timing? NO Replace the front or rear stitcher. YES Check the wiring between the stitcher and saddle stitcher controller PC board. If there is no problem, replace the controller PC board.

• Code: CBC
• Description: Abnormal saddle stitcher alignment motor
• Remedy: Is the alignment plate home position sensor (PI5S) working normally? NO Replace the sensor. YES Is the alignment motor (M5S) operating at the fixed timing? YES Replace the saddle stitcher controller PC board. NO Is the alignment plate drive mechanism normal? NO Fix the mechanism. YES Is the problem solved by replacing the alignment motor (M5S)? NO Replace the saddle stitcher controller PC board. YES END

• Code: CBD
• Description: Abnormal saddle stitcher guide motor
• Remedy: Is the guide home position sensor (PI13S) working normally? NO Replace the sensor. YES Is the guide motor (M3S) operating at the fixed timing? YES Replace the saddle stitcher controller PC board. NO Is the guide plate drive mechanism normal? NO Fix the mechanism. YES Is the problem solved by replacing the guide motor (M3S)? NO Replace the saddle stitcher controller PC board. YES END