• Code: CB10
• Description: Transport motor abnormality: The transport motor or stack transport roller is not rotating normally. [MJ-1025]
• Remedy: MJ-1025 MJ-1025 Is the stack feed roller (upper) home position sensor (PI12) working properly? NO Replace the sensor. YES Is the wiring between the finisher controller PC board and feed motor (M1) correct? NO Correct the wiring. YES Try turning the stack feed roller (upper) shaft by hand. Does the stack feed roller (upper) move up/down normally? NO Fix the mechanism. YES Try replacing the feed motor (M1). Is the problem corrected? YES End. NO Replace the finisher controller PC board.
  MJ-1101 Is there any mechanical problem when the entrance roller is rotated? ..YES Fix the mechanism. NO Is the harness between the entrance motor (M1) and the finisher control PC board (CN7) disconnected or open circuited? l ..YES • Reconnect the connector securely. • Replace the harness. NO 1. Replace the entrance motor (M1). 2. Replace the finisher control PC board.

• Code: CB11
• Description: Standby side tray drive motor abnormality
• Remedy: MJ-1101 Is there any mechanical problem when the buffer tray guide is opened/closed while the buffer roller is lifted up? ..YES Fix the mechanism. NO Is the harness between the buffer tray guide motor (M3) 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 tray guide motor (M3). 2. Replace the finisher control PC board.

• Code: CB12
• Description: Turning 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: Delivery motor or delivery roller is not rotating normally
• Remedy: MJ-1025 Is the delivery belt home position sensor (PI7) working properly? NO Replace the sensor. YES Is the wiring between the finisher controller PC board and delivery motor (M3) correct? NO Correct the wiring. YES Rotate the stack delivery roller by hand. Does it rotate smoothly? NO Fix the mechanism. YES Try replacing the delivery motor (M3). Is the problem corrected? YES END. NO Replace the finisher controller PC board.

• Code: CB30
• Description: Tray lift motor abnormality: The tray lift motor is not rotating normally or the delivery tray is not moving normally. [MJ-1025] Tray 1/Tray 2 shift motor abnormality: Tray 1/Tray 2 shift motor is not rotating or delivery tray is not moving normally. [MJ-1024] Movable tray shift motor abnormality: The movable tray shift motor is not rotating or the movable tray is not moving normally. [MJ-1101]
• Remedy: MJ-1025 [Procedure 1] Is the paper surface sensor (PI9) working properly? NO Replace the sensor. YES Is the tray up/down mechanism working properly? NO Fix the mechanism. YES Is 24 VDC supplied from the finisher controller PC board to the shift motor as soon as the tray is driven? NO Replace the finisher controller PC board. YES Is the wiring between the finisher controller PC board and shift motor (M6) correct? YES Replace the shift motor. NO Correct the wiring. [Procedure 2] Is the tray as far as the shift upper limit sensor? YES Lower the position of the tray. NO Is the shift upper limit sensor (PI15) working properly? NO Replace the sensor. YES Is the wiring between the finisher controller PC board and shift upper limit sensor (PI15) correct? YES Replace the finisher controller PC board. NO Correct the wiring. [Procedure 3] Does the tray go up? YES NO Is 24 VDC supplied from the finisher controller PCB to the shift motor as soon as the tray is driven? NO Replace the finisher controller PC board. YES Is there any problem with the tray up/down mechanism? YES Fix the lift mechanism. NO Replace the shift motor. Is the shift motor clock sensor (PI7) working properly? YES Replace the finisher controller PC boar NO Replace the sensor.
  MJ-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.
  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 stack height detection abnormality
• Remedy: MJ-1101 Is there any mechanical problem when the actuator of the movable tray paper-full detection 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 detection 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 detection 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: Rear aligning plate motor is not rotating or aligning plate is not moving normally. [MJ-1024] Front alignment motor abnormality: The front alignment motor is not rotating or the front alignment plate is not moving normally. [MJ-1101]
• Remedy: MJ-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.
  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 (staple/fold) abnormality: The staple motor is not rotating normally or the stapler is not moving normally. [MJ-1025] Staple motor abnormality: Staple motor is not rotating or stapler is not moving normally. [MJ-1024] Staple unit abnormality: Staple unit is not moving normally. [MJ-1031] Stapler home position error: The stapler home position sensor does not work. [MJ-1101]
• Remedy: MJ-1025 [Procedure 1] Is the wiring between the finisher controller PC board and the staple/fold motor normal? NO Correct the wiring. YES Try to rotate the staple jam releasing dial. Is there mechanical trapping? YES Fix the mechanism. NO Try replacing the staple/fold motor (M7). Is the problem corrected? YES End. NO Replace the finisher controller PC board. [Procedure 2] Is the staple/fold motor clock sensor (PI14) working properly? NO Replace the sensor. YES Does the staple/fold motor operate at the appropriate timing? YES Replace the finisher controller PC board. NO Is the stapler unit drive mechanism working properly? NO Fix the mechanism. YES Try replacing the staple/fold motor (M7). Is the problem corrected? YES End. NO Replace the finisher controller PC board. [Procedure 3] Is the folding home position sensor (PI11) working properly? NO Replace the sensor. YES Is the wiring between the finisher controller PC board and the staple/fold motor normal? NO Correct the wiring. YES Try to rotate the fold jam releasing dial. Is there mechanical trapping? YES Fix the mechanism. NO Try replacing the staple/fold motor (M7). Is the problem corrected? YES End. NO Replace the finisher controller PC board. [Procedure 4] Is the staple/fold motor clock sensor (PI14) working properly? NO Replace the sensor. YES Does the staple/fold motor operate at the appropriate timing? YES Replace the finisher controller PC board. NO Is the saddle stitch unit drive mechanism working properly? NO Fix the mechanism. YES Try replacing the staple/fold motor (M7). Is the problem corrected? YES End. NO Replace the finisher controller PC board.
  MJ-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.
  MJ-1031 1. Check if the connectors J112, J113 on the finisher controller PC board is disconnected from the stapler) or the harnesses are open circuited. Correct if any. 2. Replace the staple unit. 3. Replace the finisher control PC board.
  * You receive a [CB50] error when the [EA50] error occurs three times in succession. 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.