• Code: L1-00
• Description: Scanner feed trouble
  Scanner feed is not completed within the specified time.
• Causes: Mirror unit defect. Scanner wire disconnection. Origin detection sensor error. Mirror motor harness abnormality.
• Remedy: Check the scanning operation with SIM 1- 1. When the mirror not feeds: Check for disconnection of the scanner wire. Check the harness and connector between the mirror motor and the MCU PWB. Replace the mirror unit. Replace the MCU PWB. When the mirror feeds: Check the mirror home position sensor with SiM 1-2.

• Code: L3-00
• Description: Scanner return trouble
  Scanner return is not completed within the specified time. When OC copying with the mirror at the home position, the mirror is not in the home position.
• Causes: Mirror unit defect. The scanner wire is disconnected. Origin detection sensor error. Mirror motor harness abnormality.
• Remedy: Check the scanning operation with SIM 1- 1. When the mirror fails to return: Check for disconnection of the scanner wire. Check the harness and connector between the mirror motor and the MCU PWB. Replace the mirror unit. Replace the MCU PWB. When the mirror feeds: Check the mirror home position sensor with SiM 1-2.

• Code: L4-01
• Description: Main motor trouble
  The main motor does not rotate. The motor lock signal is detected for 1sec or more after the main motor rotates. The motor lock signal is detected for 1sec during rotation of the main motor.
• Causes: Main motor defect. Main motor connection, harness trouble or disconnection. MCU PWB failure.
• Remedy: Check the main motor operation with SIM 25-1. Check connection of the main motor harness and connector. Replace the main motor. Replace the MCU PWB.

• Code: L4-11
• Description: Shifter motor trouble
  The shifter home position detection signal is not detected when the shifter is operating.
• Causes: Shifter motor trouble or harnes connection trouble and disconnection. Shifter home position sensor trouble.
• Remedy: Check the shifter motor operation with SIM 3-11. Check connection of the shifter motor harness/connector. Replace the shifter motor. Replace the MCU PWB.

• Code: L4-31
• Description: Fusing fan lock trouble
  Fusing fan does not rotate. The fusing fan lock signal is detected for 1sec or more.
• Causes: Fusing fan connection trouble, harness disconnection. MCU PWB failure.
• Remedy: Check connection of the fusing fan. Replace the fusing fan. Replace the MCU PWB.

• Code: L4-32
• Description: Power fan lock trouble
  Exhaust/intake fan motor does not rotate. The fan lock signal is detected for 1sec or more.
• Causes: Fan connection trouble, harness disconnection. MCU PWB failure.
• Remedy: Check connection of the exhaust/intake fan. Replace the exhaust/intake fan. Replace the MCU PWB.

• Code: L4-33
• Description: Paper exit fan lock trouble
  Paper exit fan does not rotate. The paper exit fan lock signal is detected for 1sec or more.
• Causes: Paper exit fan connection trouble, harness disconnection. MCU PWB failure.
• Remedy: Check connection of the paper exit fan. Replace the paper exit fan. Replace the MCU PWB.

• Code: L6-10
• Description: Polygon motor lock trouble
  The polygon motor does not rotate. The motor lock signal is detected for 6sec or more after the polygon motor rotates. The motor lock signal is detected for 1sec during rotation of the polygon motor.
• Causes: Polygon motor unit failure Polygon motor connection, harness trouble or disconnection MCU PWB failure
• Remedy: Check the polygon motor operation with SIM 61-1. Check the connectors and the harness of polygon motor Replace the polygon motor. Replace the MCU PWB.