• Code: CB50
• Description: Stapler home position error
• Remedy: MJ-1101 Is the harness between the stapler and the finisher control PC board (CN2) disconnected or open circuited? l → →YES • Reconnect the connector securely. • Replace the harness. NO Are the harnesses in the stapler disconnected or open circuited? l → →YES • Reconnect the connector securely. • Replace the harness. NO Replace the finisher control PC board.

• Code: CB51
• Description: Stapler shift home position error
• Remedy: MJ-1101 Is there any mechanical problem when the stapler is moved? → →YES Fix the mechanism. NO Is there a disconnection of the connector, incorrect installation or breakage of the stapler unit home position sensor (S10)? ll → →YES • Connect the connector securely. • Reinstall the sensor correctly. • Replace the sensor. NO Is the harness between the stapler unit home position sensor (S10) and the finisher control PC board (CN1) disconnected or open circuited? l → →YES • Reconnect the connector securely. • Replace the harness. NO Is the harness between the stapler unit shift motor (M4) and the finisher control PC board (CN5) disconnected or open circuited? l → →YES • Reconnect the connector securely. • Replace the harness. NO Replace the finisher control PC board.

• Code: CB60
• Description: Stapler unit shift motor abnormality
• Remedy: MJ-1023/1024 Is the stapler shift home position sensor (PI40) working normally? → NO → Replace the sensor. YES Is the wiring between the finisher controller PC board and the stapler shift motor (M35) correct? → NO → Correct the wiring. YES Is there any mechanical problem with the stapler stand motion path? → YES→ Fix the lift mechanism. NO 1) Replace the stapler shift motor. 2) Replace the finisher controller PC board.
  MJ-1101 Is there any mechanical problem when the stapler is moved? → →YES Fix the mechanism. NO Is the harness between the stapler unit shift motor (M4) and the finisher control PC board (CN5) disconnected or open circuited? l → →YES • Reconnect the connector securely. • Replace the harness. NO 1) Replace the stapler unit shift motor (M4). 2) Replace the finisher control PC board.

• Code: CB80
• Description: Backup RAM data abnormality
• Remedy: MJ-1023/1024 Is the problem solved by turning the power of the equipment OFF and ON? → YES→ End. NO 1) Replace the finisher controller PC board. 2) Replace the punch controller PC board.

• Code: CB80
• Description: RAM abnormality
• Remedy: MJ-1101 Is the error recovered when the power of the equipment is turned OFF and then back ON? → →YES End. NO Replace the finisher control PC board.

• Code: CB81
• Description: Flash ROM abnormality
• Remedy: MJ-1101 Is the error recovered when the power of the equipment is turned OFF and then back ON? → →YES End. NO 1) Check if the conductor pattern on the finisher controller PC board is open circuited or short circuited. 2) Replace the finisher control PC board.

• Code: CB90
• Description: Paper pushing plate motor abnormality
• Remedy: MJ-1024 Are the paper pushing plate home position sensor (PI14), paper pushing plate top position sensor (PI15) and paper pushing plate motor clock sensor (PI1) working normally? → NO → Replace the sensor. YES Is the paper pushing plate drive mechanism normal? → NO → Fix the mechanism. YES 1) Replace the paper pushing plate motor (M8). 2) Replace the saddle stitcher controller PC board.

• Code: CBA0, CBB0
• Description: [CBA0] Stitch motor (front) abnormality [CBB0] Stitch motor (rear) abnormality
• Remedy: MJ-1024 Are the front and rear stitchers and their stands installed properly? → NO → Install them properly. YES Are the stitcher home position switches (SW7/SW5) and stitcher motors (M7/M6) on the front and rear stitchers working normally? → NO → Replace the front or rear stitcher. YES Replace the saddle stitcher controller PC board.