• Code: CB30
• Description: Movable tray shift motor abnormality: The movable tray shift motor is not rotating or the movable tray is not moving normally.
• Causes: Movable tray shift motor (M7) Movable tray position A, B, and C sensors (S13, S14, and S15) Finisher controller PC board
• Remedy: MJ-1101 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-1106 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.
• Causes: Movable tray paper-full detection sensor (S16) Finisher controller PC board
• Remedy: MJ-1101 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-1106 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 motor abnormality: The front alignment motor is not rotating or the front align/1106ment plate is not moving normally.
• Causes: Front alignment motor (M9) Finisher controller PC board
  Front alignment motor (M5) Finisher controller PC board
• Remedy: MJ-1101 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-1106 Front alignment plate If there is mechanical problem when the front alignment plate is moved, fix the mechanism. 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: Staple unit abnormality: Staple unit is not moving normally. Stapler home position error: The stapler home position sensor does not work.
• Causes: Stapler Finisher controller PC board
• Remedy: Stapler Check the connectors and harnesses between the stapler and finisher controller PC board (J112, J113).

• Code: CB51
• Description: Stapler shift home position error: The stapler is not at the home position.
• Causes: Stapler unit home position sensor (S10) Finisher controller PC board
  Stapler unit home position sensor Finisher controller PC board
• Remedy: MJ-1101 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-1106 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.
• Causes: Stapler unit shift motor (M4) Finisher controller PC board
• Remedy: MJ-1101 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-1106 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: Backup RAM data abnormality: Abnormality of checksum value on finisher controller PC board is detected when the power is turned ON.
• Causes: Finisher controller PC board
• Remedy: 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.
• Causes: Finisher controller PC board
• Remedy: Main power switch Turn OFF the main power switch, then back ON. Finisher controller PC board Board check