• Code: L1-00
• Description: Scanner feed trouble
  Though the specified steps of motor pulses are outputted, the mirror home position sensor remains ON.
• Causes: Mirror unit abnormality The scanner wire is disconnected. The origin detection sensor abnormality Mirror motor harness abnormality
• Remedy: Use SIM 1-1 to check the mirror reciprocating operations. When the mirror does not feed. Check for disconnection of the scanner wire. Check the harness and the connector between the mirror motor and the MCU PWB. Replace the mirror unit. Replace the MCU PWB. When the mirror does feed. Use SIM 1-2 to check the mirror home position sensor.

• Code: L3-00
• Description: Scanner return trouble
  Though the specified steps of motor pulses are outputted, the mirror home position sensor does not turn ON.
• Causes: Mirror unit abnormality Scanner wire disconnection Origin detection sensor abnormality Mirror motor harness abnormality
• Remedy: Use SIM 1-1 to check the mirror reciprocating operations. When the mirror does not return. Check for disconnection of the scanner wire. Check the harness and the connector between the mirror motor and the MCU PWB. Replace the mirror unit. Replace the MCU PWB. When the mirror does feed. Use SIM 1-2 to check the mirror home position sensor.

• Code: L4-01
• Description: Main motor lock detection
  The main motor does not rotate. After rotation of the main motor, the motor lock signal is detected for 1 sec or more. During rotation of the main motor, the motor lock signal is detected for 1 sec. When the main motor is stopped, the motor lock signal is not detected for 5sec or more. (Though the motor is stationary, it is judged as stable rotation.)
• Causes: Main motor unit abnormality Improper connection or disconnection the main motor and the harness. MCU PWB abnormality
• Remedy: Use SIM 25-01 to check the main motor operations. Check connection of the main motor harness/ 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 initializing the shifter.
• Causes: Shifter motor abnormality, improper connection or disconnection of the harness, shifter home position sensor abnormality.
• Remedy: Use SIM 03-11 to check the shifter motor operations. Check connection of the harness/connector of the shifter motor. Replace the shifter motor. Replace the MCU PWB.

• Code: L4-32
• Description: PSFAN lock detection
  The PSFAN does not rotate. Sampling is performed in 50msec interval, and the normal signal cannot be detected 5 times continuously in 1 sec.
• Causes: Fan trouble or harness contact trouble and disconnection
• Remedy: Check connection of the fan harness and the connector. Replace the fan. Replace the MCU PWB.

• Code: L6-10
• Description: Polygon motor lock detection
  The polygon motor does not rotate After beginning to rotate the polygon motor, the motor lock signal is detected for 20sec or more. During rotation of the polygon motor, the motor lock signal is detected for 1sec.
• Causes: Polygon motor unit abnormality Improper connection or disconnection of the polygon motor and the harness. MCU PWB abnormality
• Remedy: Use SIM 61-3 to check the polygon motor operations. Check connection of the polygon motor harness/connector. Replace the LSU unit. Replace the MCU PWB.

• Code: L8-01
• Description: No full wave signal.
  The zero cross signal is not detected.
• Causes: Power unit abnormality. MCU PWB abnormality
• Remedy: Check connection of the harness and connectors. Replace the MCU PWB. Replace the power unit.

• Code: U1-03
• Description: FAX board battery error.
  FAX board backup battery error.
• Causes: The voltage of the backup battery of SRAM which is installed to the FAX board falls below a certain level.
• Remedy: Replace the battery.