Code :

Code: CB12
Description: Buffer roller drive motor abnormality
Remedy: MJ-1101 Is there any mechanical problem when the buffer roller is rotated? → →YES Fix the drive mechanism. NO Is the harness between the buffer roller drive motor (M6) and the finisher control PC board (CN18) disconnected or open circuited? l → →YES • Reconnect the connector securely. • Replace the harness. NO 1) Replace the buffer roller drive motor (M6). 2) Replace the finisher control PC board.

Code: CB20
Description: Delivery motor abnormality
Remedy: MJ-1022 Rotate the delivery roller by hand. Does it rotate smoothly? → NO → Fix the mechanism. YES Is the wiring between the finisher controller PC board and delivery motor (M1) correct? → NO → Correct the wiring. YES Is the delivery motor clock sensor (S1) working properly? → NO → Replace the sensor. YES 1) Replace the delivery motor. 2) Replace the finisher controller PC board.

Code: CB30
Description: Tray 1/2 shift motor abnormality
Remedy: MJ-1023/1024 Are the tray 1 shift area sensors 1-3 and tray 2 shift area sensors 1-3 normal? → NO → Replace the tray 1/2 shift area sensor boards. YES Are the wirings between the finisher controller PC board and the tray 1/2 shift motors (M37/ M38) correct? → NO → Correct the wirings. YES Is there any problem with the tray lift mechanism? → NO → Fix the lift mechanism. YES 1) Replace the tray 1/2 shift motors. 2) Replace the finisher controller PC board.

Code: CB30
Description: Movable tray shift motor abnormality
Remedy: MJ-1101 Is there any mechanical problem when the movable tray is moved? → →YES Fix the mechanism. NO Is the harness between the movable tray shift motor (M7) and the finisher control PC board (CN8) disconnected or open circuited? l → →YES • Reconnect the connector securely. • Replace the harness. NO Is there a disconnection of the connector, incorrect installation or breakage of the movable tray position A, B, and C sensors (S13, S14, and S15)? l → →YES • Replace the harness. • Reinstall the sensor correctly. • Replace the sensor. NO 1) Replace the movable tray shift motor (M7). 2) Replace the finisher control PC board.

Code: CB31
Description: Movable tray paper-full detion error
Remedy: MJ-1101 Is there any mechanical problem when the actuator of the movable tray paper-full detion sensor (S17) is moved? → →YES Fix the mechanism. NO Is there a disconnection of the connector, incorrect installation or breakage of the movable tray paper-full detion sensor (S17)? ll → →YES • Connect the connector securely. • Reinstall the sensor correctly. • Replace the sensor. NO Is the harness between the movable tray paper-full detion sensor (S17) and the finisher control PC board (CN13) disconnected or open circuited? l → →YES • Reconnect the connector securely. • Replace the harness. NO Replace the finisher control PC board.

Code: CB40
Description: Rear aligning plate motor abnormality
Remedy: MJ-1023/1024 Is the rear aligning plate home position sensor (PI37) normal? → NO → Correct the wiring. YES Is there any mechanical problem with the path of aligning plate? → NO → Fix the mechanism. YES 1) Replace the rear aligning plate motor. 2) Replace the finisher controller PC board.

Code: CB40
Description: Front alignment motor abnormality
Remedy: MJ-1101 Is there any mechanical problem when the front alignment plate is moved? → →YES Fix the mechanism. NO Is the harness between the front alignment motor (M9) and the finisher control PC board (CN10) disconnected or open circuited? l → →YES • Reconnect the connector securely. • Replace the harness. NO Replace the front alignment motor (M9).

Code: CB50
Description: Staple motor abnormality
Remedy: MJ-1022/1023/1024 Is the wiring between the stapler and finisher controller PC board correct? → NO → Correct the wiring. YES 1) Replace the stapler. 2) Replace the finisher controller PC board.