• Code: H4 00
• Description: Fusing section low temperature trouble (HL1)
• Causes: The fusing temperature is not reached within the specified time after turning on the power relay.
• Remedy: Common Check Use SIM 5-2 to check the heater lamp flashing operation. Case 1 Cause The heater lamp flashes properly with SIM 5-2. Thermistor trouble, PCU PWB (thermistor input circuit) trouble Check & Remedy Check the thermistor and its harness. Check the PCU PWB thermistor input circuit. Cancel the error with SIM 14. Case 2 Cause The heater lamp keeps ON with SIM 5-2. Heater lamp trouble, thermostat trouble, interlock switch trouble, AC power supply trouble, PCU PWB (lamp control circuit) trouble Check & Remedy Check for disconnection of the heater lamp and the thermostat. Check the interlock switch. Check the AC PWB and the PUC PWB lamp control circuit. Cancel the error with SIM 14.

• Code: H4 01
• Description: Fusing section low temperature trouble (HL2)
• Causes: The fusing temperature is not reached within the specified time after turning on the power relay.
• Remedy: Common Check Use SIM 5-2 to check the heater lamp flashing operation. Case 1 Cause The heater lamp flashes properly with SIM 5-2. Thermistor trouble, PCU PWB (thermistor input circuit) trouble Check & Remedy Check the thermistor and its harness. Check the PCU PWB thermistor input circuit. Cancel the error with SIM 14. Case 2 Cause The heater lamp keeps ON with SIM 5-2. Heater lamp trouble, thermostat trouble, interlock switch trouble, AC power supply trouble, PCU PWB (lamp control circuit) trouble Check & Remedy Check for disconnection of the heater lamp and the thermostat. Check the interlock switch. Check the AC PWB and the PUC PWB lamp control circuit. Cancel the error with SIM 14.

• Code: H5 01
• Description: Five continuous detections of POD1 not-reached jam
• Causes: POD1 not-reached jams are detected for five times continuously.
• Remedy: Case 1 Cause A fusing jam is not canceled completely. (Jam paper remains inside the machine.) Check & Remedy Check remaining jam paper (winding). Cancel the error with SIM 14. Case 2 Cause POD1 sensor trouble, or harness disconnection Check & Remedy Check POD1 sensor harness. Cancel the error with SIM 14. Case 3 Cause Improper installation of the fusing unit Check & Remedy Check installation of the fusing unit. Cancel the error with SIM 14.

• Code: H8 01
• Description: Fusing unit initial detection trouble
• Causes: Fusing unit initial detection trouble
• Remedy: Case 1 Cause Disconnection of the connector Check & Remedy Check connection of the fusing unit initial sensor. Check connection of the connector and the harness to the PCU PWB. Case 2 Cause Connector harness trouble Check & Remedy Check for disconnection of the harness. Case 3 Cause Fusing unit trouble Check & Remedy Replace the fusing unit.

• Code: L1 00
• Description: Mirror feed trouble
• Causes: Mirror feed is not completed within the specified time.
• Remedy: Case 1 Cause Mirror unit trouble, mirror wire breakage Check & Remedy Use SIM 1-1 to check the mirror operation.

• Code: L3 00
• Description: Mirror return trouble
• Causes: Mirror return is not completed within the specified time.
• Remedy: Case 1 Cause Mirror unit trouble, mirror wire breakage Check & Remedy Use SIM 1-1 to check the mirror operation.

• Code: L4 02
• Description: Paper feed motor lock trouble
• Causes: In warm-up, or in canceling a jam, the paper feed motor is rotated, and the lock signal is not detected within 1sec.
• Remedy: Case 1 Cause Paper feed motor trouble, disconnection of the harness between the PCU PWB and the paper feed motor, control circuit trouble Check & Remedy Use SIM 6-1 to check the paper feed motor operation. Check the harness and the connector between the PCU PWB and the paper feed motor.

• Code: L4 06
• Description: Transfer belt lift motor trouble
• Causes: When the belt motor lifts up or down, the change in the belt home position sensor characteristics is not detected within the specified time. (When the motor lifts up, the lower limit sensor remains ON after the specified time.) (When the motor lifts down, the lower limit sensor does not turn on after the specified time.)
• Remedy: Case 1 Cause Belt lift motor trouble, disconnection of the harness between the PCU PWB and the belt lift motor, control circuit trouble Check & Remedy Use SIM 6-1 to check the belt lift motor operation. Check the harness and the connector between the PCU PWB and the belt lift motor.