Code :

Code: H4-01
Description: Fusing section low temperature trouble (Lower main) (TH_LM)
Causes: Thermistor trouble. Heater lamp trouble. PCU PWB trouble. Thermostat trouble. AC Power unit trouble. Interlock switch trouble.
Remedy: Use SIM05-02 to check the flushing operation of the heater lamp. When the lamp lights on correctly, check the thermistor or the harness. Check the input circuit of the thermistor on the PCU PWB. When the lamp does not light on correctly, check the cut-line of the heater harness and the thermostat. Check the interlock switch. Check the lamp control circuit on the AC PWB and the PCU PWB. Use SIM14 to cancel the trouble.

Code: H4-02
Description: Fusing section low temperature trouble (Upper sub) (TH_US1)
Causes: Thermistor trouble. Heater lamp trouble. PCU PWB trouble. Thermostat trouble. AC Power unit trouble. Interlock switch trouble.
Remedy: Use SIM05-02 to check the flushing operation of the heater lamp. When the lamp lights on correctly, check the thermistor or the harness. Check the input circuit of the thermistor on the PCU PWB. When the lamp does not light on correctly, check the cut-line of the heater harness and the thermostat. Check the interlock switch. Check the lamp control circuit on the AC PWB and the PCU PWB. Use SIM14 to cancel the trouble.

Code: H4-30
Description: Thermistor differential input trouble (Upper main) (TH_UM)
Causes: HL_UM does not light. Thermistor trouble. Harness trouble. PCU PWB trouble.
Remedy: Use SIM05-02 to check the flushing operation of the heater lamp. When the lamp lights on correctly, check the thermistor or the harness. Check the input circuit of the thermistor on the PCU PWB. When the lamp does not light on correctly, check the cut-line of the heater harness and the thermostat. Check the interlock switch. Check the lamp control circuit on the AC PWB and the PCU PWB. Use SIM14 to cancel the trouble.

Code: H4-32
Description: Thermistor differential input trouble (Upper sub) (TH_US1)
Causes: HL_UM does not light. Thermistor trouble. Harness trouble. PCU PWB trouble.
Remedy: Use SIM05-02 to check the flushing operation of the heater lamp. When the lamp lights on correctly, check the thermistor or the harness. Check the input circuit of the thermistor on the PCU PWB. When the lamp does not light on correctly, check the cut-line of the heater harness and the thermostat. Check the interlock switch. Check the lamp control circuit on the AC PWB and the PCU PWB. Use SIM14 to cancel the trouble.

Code: H5-01
Description: 5 times continuous POD1 not-reach jam
Causes: A fusing jam is not canceled completely. (A jam paper remains.) POD1 sensor trouble Fusing unit installation trouble POD1 sensor connector and harness connection trouble PCU PWB trouble Fusing unit, drive section trouble
Remedy: Replace the POD1 sensor. Check installation of the fusing unit. Replace the fusing unit. Check or repair the fusing drive section. Check connection of the POD1 sensor connector and the harness. Replace the PCU PWB. Use SIM14 to cancel the trouble.

Code: H7-10
Description: Recovery error from low fuser temp. (Upper main) (TH_UM)
Causes: Thermistor trouble. Heater lamp trouble. PCU PWB trouble. Thermostat trouble. Connector, harness connection trouble. AC Power unit trouble. Interlock switch trouble
Remedy: Use SIM5-2 to check the flashing operation of the heater lamp. Replace the thermostat conduction. Replace the heater lamp. Replace the PCU PWB. Replace the AC PWB. Check connection of the connector and the harness.

Code: H7-12
Description: Recovery error from low fuser temp. (TH_LM)
Causes: Thermistor trouble. Thermostat trouble. Heater lamp trouble. PCU PWB trouble. AC Power unit trouble. Interlock switch trouble Connector, harness connection trouble.
Remedy: Use SIM5-2 to check the flashing operation of the heater lamp. Replace the thermostat conduction. Replace the heater lamp. Replace the PCU PWB. Replace the AC PWB. Check connection of the connector and the harness.

Code: L1-00
Description: Scanner feed trouble
Causes: Mirror unit trouble Wire is removed from the mirror. Lock screw is not removed. Circuit trouble
Remedy: Use SIM1-1 to check the mirror operation. Check the circuit related with the mirror motor (SCNMFP PWB and MHP sensor PWB).