• Code: CB30
• Description: Movable tray shift motor abnormality: The movable tray shift motor or the movable tray does not work properly. [MJ-1036]Movable tray shift motor abnormality: The movable tray shift motor is not rotating or the movable tray is not moving normally. [MJ-1107/1108]
• Causes: MJ-1036
  MJ-1107 Movable tray shift motor (M7) Movable tray position A, B, and C sensors (S13, S14, and S15) Finisher controller PC board
  MJ-1108 Movable tray shift motor (M7) Movable tray position A, B, and C sensors (S13, S14, and S15) Finisher controller PC board
• Remedy: MJ-1036 Movable tray shift motor (M1) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the moto 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 ± 5% 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 ± 5% 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 ± 5% 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).
  MJ-1107 Movable tray If there is mechanical problem when the movable tray is moved, fix the mechanism. Movable tray shift motor (M7) Check the connectors and harnesses between the movable tray shift motor (M7) and the finisher control PC board (CN8). Movable tray position A, B, and C sensors (S13, S14, and S15) • Connector check • Sensor check
  MJ-1108 Movable tray If there is mechanical problem when the movable tray is moved, fix the mechanism. Movable tray shift motor (M12) Check the connectors and harnesses between the movable tray shift motor (M12) and the finisher control PC board (CN16). Movable tray position A, B, and C sensors (S13, S14, and S15) • Connector check • Sensor check

• Code: CB31
• Description: Movable tray paper-full detection error: The actuator of the movable tray paper-full detection sensor does not move smoothly. [MJ-1107/1108]
• Causes: MJ-1107 Movable tray paper-full detection sensor (S16) Finisher controller PC board
  MJ-1108 Movable tray paper-full sensor Finisher control PC board
• Remedy: MJ-1107 Movable tray paper-full detection sensor (S16) • If there is mechanical problem when the actuator is moved, fix the mechanism. • Sensor check • Check the connectors and harnesses between the movable tray paper-full detection sensor (S16) and the finisher control PC board (CN13).
  MJ-1108 Movable tray paper-full sensor Fix any mechanical problem occurring when the actuator is moved. Check if there is a disconnection of the connector, incorrect installation or breakage of the movable tray paper-full sensor (S16). If there is, reinstall the sensor correctly or replace it. Check if the connector (CN12) on the finisher controller PC board is disconnected from the movable tray paper-full sensor (S16) and the harnesses are open circuited. Correct if so.

• Code: CB40
• Description: Front alignment plate home position detection error: The detection of the home position ends abnormally because the front alignment plate has not worked properly.[MJ-1036]Front alignment motor abnormality: The front alignment motor is not rotating or the front alignment plate is not moving normally. [MJ-1107/1108]
• Causes: MJ-1036
  MJ-1107 Front alignment motor (M9) Finisher controller PC board
  MJ-1108 Front alignment motor (M5) Finisher controller PC board
• Remedy: MJ-1036 Rear alignment motor (M3) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the motor. Rear alignment plate home position sensor (S6) abnormality Measure the voltage on TP16 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±5% 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 connectors. (Finisher control PC board (FIN): CN5, CN12) Finisher control PC board (FIN) abnormality If the error still occurs after replacing the motor, sensor and connectors, exchange the finisher control PC board (FIN).
  MJ-1107 Front alignment plate If there is mechanical problem when the front alignment plate is moved, fix the mechanism. Front alignment motor (M9) Check the connectors and harnesses between the front alignment motor (M9) and the finisher control PC board (CN10).
  MJ-1108 Front alignment motor (M5) Check the connectors and harnesses between the front alignment motor (M5) and the finisher control PC board (CN10).

• Code: CB50
• Description: Stapler unit home position detection error: The detection of the home position of the stapler unit ends abnormally. [MJ-1036]Stapler home position error: The stapler home position sensor does not work. [MJ-1107/1108]
• Causes: MJ-1036
  MJ-1107 Stapler Finisher controller PC board
  MJ-1108 Stapler Finisher controller PC board
• Remedy: MJ-1036 Staple motor (M10) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the staple unit. Staple unit clinching home position sensor (S16) abnormality Measure the voltage on CN16 on the finisher control PC board (FIN). Then check that the measured voltage is 1V or lower when the sensor is ON and within the range of 3.3V ± 5% when OFF. If the voltage does not fall within the range mentioned, replace the staple unit. Staple unit improper clinching prevention sensor (S15) abnormality Measure the voltage on TP25 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 ± 5% 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 connectors. (Finisher control PC board (FIN): CN16, CN17) Finisher control PC board (FIN) abnormality If the error still occurs after replacing the motor, sensors, switch and connectors, exchange the finisher control PC board (FIN).
  MJ-1107 Stapler • Check the connectors and harnesses between the stapler(M4) and finisher controller PC board (CN2). • Check the harnesses in the stapler.
  MJ-1108 Stapler • Check the connectors and harnesses between the stapler and finisher controller PC board (CN19). • Check the harnesses in the stapler.

• Code: CB51
• Description: Stapler unit sliding home position detection error: The detection of the home position of the stapler unit sliding ends abnormally. [MJ-1036]Stapler shift home position error: The stapler is not at the home position. [MJ-1107/1108]
• Causes: MJ-1107 Stapler unit home position sensor (S10) Finisher controller PC board
  MJ-1108 Stapler unit home position sensor Finisher controller PC board
• Remedy: MJ-1036 Staple unit sliding motor (M7) abnormality Check if the electrical continuity of the coil is normal. If electricity is not conducted, replace the staple unit. Staple unit sliding home position sensor (S3) abnormality Measure the voltage on TP18 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±5% 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 connectors. (Finisher control PC board (FIN): CN3, CN18) Finisher control PC board (FIN) abnormality If the error still occurs after replacing the staple unit, sensors and connectors, exchange the finisher control PC board (FIN).
  MJ-1107 Stapler If there is mechanical problem when the stapler is moved, fix the mechanism. Stapler unit home position sensor (S10) • Sensor check • Check the connectors and harnesses between the stapler unit home position sensor (S10) and the finisher control PC board (CN1). Stapler unit shift motor (M4) Check the connectors and harnesses between the stapler unit shift motor (M4) and the finisher control PC board (CN5).
  MJ-1108 Stapler Move the stapler. Fix any mechanical problem. Stapler unit home position sensor Check if there is a disconnection of the connector, incorrect installation or breakage of the stapler unit home position sensor (S10). If there is, reinstall the sensor correctly or replace it. Check if the connector (CN21) on the finisher controller PC board is disconnected from the stapler unit home position sensor (S10) and the harnesses are open circuited. Correct if so. Stapler unit shift motor Check if the connector (CN10) on the finisher controller PC board is disconnected from the stapler unit shift motor (M9) and the harnesses are open circuited. Correct if so.

• Code: CB60
• Description: Stapler shift motor abnormality: Stapler shift motor is not rotating or staple unit is not moving normally. [MJ-1107/1108]
• Causes: MJ-1107 Stapler unit shift motor (M4) Finisher controller PC board
  MJ-1108 Stapler unit shift motor (M4) Finisher controller PC board
• Remedy: MJ-1107 Stapler If there is mechanical problem when the stapler is moved, fix the mechanism. Stapler unit shift motor (M4) Check the connectors and harnesses between the stapler unit shift motor (M4) and the finisher control PC board (CN5).
  MJ-1108 Stapler If there is mechanical problem when the stapler is moved, fix the mechanism. Stapler unit shift motor (M9) Check the connectors and harnesses between the stapler unit shift motor (M9) and the finisher control PC board (CN10).

• Code: CB80
• Description: Finisher control PC board (FIN) backup RAM error: An error occurs during the writing of data into the EEPROM of the Finisher. [MJ-1036]Backup RAM data abnormality: Abnormality of checksum value on finisher controller PC board is detected when the power is turned ON. [MJ-1107/1108]
• Causes: MJ-1107/1108 Finisher controller PC board
• Remedy: MJ-1036 Finisher control PC board (FIN) abnormalit Replace the finisher control PC board (FIN) as the cause is a fault in the IC of the backup RAM.
  MJ-1107/1108 Main power switch Turn OFF the main power switch, then back ON.

• Code: CB81
• Description: Flash ROM abnormality: Abnormality of checksum value on finisher controller PC board is detected when the power is turned ON. [MJ-1107/1108]
• Causes: MJ-1107/1108 Finisher controller PC board
• Remedy: MJ-1107/1108 Main power switch Turn OFF the main power switch, then back ON. Finisher controller PC board Board check