• Code: CA10
• Description: Polygonal motor abnormality
• Causes: Laser optical unit LGC board LSU cooling fan Developer unit cooling fan Harness
• Remedy: Polygonal motor • Motor check (Perform the output check: FS-03-103/153) • Connector check (Relay connector J643) • Harness check LGC board • Connector check (CN322) • LGC board check LSU cooling fan • Fan motor check (Perform the output check: FS-03-437) • Connector check (Relay connector J648) • Harness check Developer unit cooling fan • Fan motor check (Perform the output check: FS-03-451) • Connector check (CN462, J662) • Harness check

• Code: CA20
• Description: H-Sync detection error. The polygonal motor does not work normally.
• Causes: Laser optical unit LGC board Harness Flat cable
• Remedy: Laser optical unit • Connector check (Relay connector J643) • Check the harness/connector between the LGC board and the laser optical unit. • Flat cable/terminal check LRL board Connector check - 25/30/35ppm: CN204, CN205 - 45/50ppm: CN210, CN211, CN212 LGC board • Connector check (CN322, CN317, CN318, CN319) • LGC board check Grounding Check that the equipment is grounded properly.

• Code: CB00, CB01
• Description: [CB00] Finisher not connected [CB01] Finisher communication error. Finisher not connected: Communication error has occurred between the equipment and finisher. Finisher communication error: Communication error has occurred between the equipment and finisher.
• Causes: Finisher control PC board (FIN) LGC board (LGC)
• Remedy: Finisher • Check if the harness connecting the equipment and the finisher control PC board is disconnected or open circuited. • Check if the conductor pattern on the finisher control PC board is open circuited or short circuited. • Update the finisher firmware. • Replace the finisher control PC board. LGC board • Check if the harness connecting the finisher and the LGC board on the equipment is disconnected or open circuited. • Connector check (CN304) • Check if the conductor pattern on the LGC board is open circuited or short circuited. • Replace the LGC board.

• Code: CB10
• Description: Entrance motor abnormality. Entrance motor abnormality: The entrance motor is not rotating normally. MJ-1109/1110
• Causes: Entrance motor (M1) Finisher control PC board (FIN)
• Remedy: Feeding roller Rotate the feeding roller. Fix any mechanical problem. Entrance motor (M1) Check if the connector (CN17) on the finisher controller PC board is disconnected from the entrance motor (M1) and the harnesses are open circuited. Correct if so.

• Code: CB11
• Description: Buffer tray guide motor abnormality * A [CB11] error occurs if the [ED16] error occurs three times in succession or the [ED16] error occurs during the initialization. Buffer tray guide motor abnormality: The buffer tray guide motor is not rotating or the buffer tray guide is not moving normally. MJ-1109/1110
• Causes: Buffer tray guide motor (M2) Finisher control PC board (FIN)
• Remedy: Buffer tray guide Raise the buffer roller and open/close the buffer tray guide. Fix any mechanical problem. Buffer tray guide motor (M2) Check if the connector (CN10) on the finisher control PC board is disconnected from the buffer tray guide motor (M2) and the harnesses are open circuited. Correct if so.

• Code: CB13
• Description: Finisher exit motor (M11) abnormality MJ-1109/1110
• Causes: Exit motor (M11) Finisher control PC board (FIN)
• Remedy: Exit roller • Is there any mechanical problem when the exit roller is rotated? Correct if so. Exit motor (M11). • Motor check • Connector check (CN15) • Harness check Finisher control PC board (FIN) • Connector check (CN15) • Board check

• Code: CB14, EAFE
• Description: [CB14] Assist arm motor (M10) abnormality [EAFE] Paper holding cam position error (paper jam) MJ-1109/1110. The assist arm motor is not rotating or the paper pusher cam is not moving normally.
• Causes: Assist arm motor (M10) Finisher control PC board (FIN)
• Remedy: Paper pusher cam • Is there any mechanical problem when the paper pusher cam is rotated? Assist arm motor (M10) • Motor check • Connector check (CN10) • Harness check Finisher control PC board (FIN) • Connector check (CN10) • Board check

• Code: CB30
• Description: Movable tray shift motor (M1) abnormality, Movable tray paper top detection error MJ-1042
• Causes: Movable tray shift motor (M1) Stack top detection solenoid (SOL1) Stack top detection sensor-1 (S1) Stack top detection sensor-2 (S2 Movable tray lower limit sensor (S14) A locking signal is detected after the specified time *while the movable tray is moving. * A locking signal is not monitored from the start driving the motor until the specified time has passed. The stack top position of paper is not detected after the movable tray shift motor (M1) is driven in the specified time when the movable tray is moved up. The lower limit position of the stack top of paper is not detected after the movable tray shift motor (M1) has been driven in the specified time during the initial movement of the movable tray. The turning OFF of the movable tray lower limit sensor (S14) is not detected when the movable tray is moved from a point where this sensor is turned ON to one point where this sensor is turned OFF after the movable tray shift motor (M1) has been driven in the specified time.
• Remedy: Movable tray shift motor (M1) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor. Movable tray lower limit sensor (S14) abnormality Measure the voltage on TP17 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor. Faulty cables and connectors Check if the electrical continuity among the connector terminals is normal. If electricity is not conducted, replace the connectors. (Finisher control PC board (FIN): CN4, CN10) Finisher control PC board (FIN) abnormality If the error still occurs after replacing the motor, sensors and connectors, exchange the finisher control PC board (FIN). Stack top detection solenoid (SOL1) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the solenoid. Stack top detection sensor-1 (S1) abnormality Measure the voltage on TP11 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor. Stack top detection sensor-2 (S2) abnormality Measure the voltage on TP20 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when not shielded and within the range of 3.3V„b5% when shielded. If the voltage does not fall within the range mentioned, replace the sensor. Faulty cables and connectors Check if the electrical continuity between the connector terminals is normal. If electricity is not conducted, replace the connector. (Finisher control PC board (FIN): CN3) Finisher control PC board (FIN) abnormality If the error still occurs after replacing the solenoid, sensors and connector, exchange the finisher control PC board (FIN).