Code :

Code: H4-30
Description: Thermister input circuit trouble (TH_UM)
Causes: The values of TH_UM_AD1 and TH_UM_AD2 do not exceed the specified value (50 counts in AD value) within the specified time from turning ON the HL_UM. Thermister trouble. Heater lamp trouble. PCU PWB trouble Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble
Remedy: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp. 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. Connector, harness connection trouble. PCU PWB trouble
Remedy: Replace the POD1 sensor. Check the installing position of the fusing unit. Replace the fusing unit. Check connection of the connector and the harness. Replace the PCU PWB. Use SIM14 to cancel the trouble.

Code: H7-10
Description: Fusing low temperature recovery trouble (TH_UM_AD2).
Causes: The fusing temperature does not reach the specified level within the specified time from stopping a job due to fall in the fusing temperature. Thermister trouble. Heater lamp trouble. PCU PWB trouble Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble.
Remedy: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp.

Code: H7-11
Description: Fusing low temperature recovery trouble (TH_LM)
Causes: The fusing temperature does not reach the specified level within the specified time from stopping a job due to fall in the fusing temperature. Thermister trouble. Heater lamp trouble. PCU PWB trouble Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble.
Remedy: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp.

Code: H7-12
Description: Fusing low temperature recovery trouble (TH_US)
Causes: The fusing temperature does not reach the specified level within the specified time from stopping a job due to fall in the fusing temperature. Thermister trouble. Heater lamp trouble. PCU PWB trouble Thermostat trouble. Connector, harness connection trouble. Power unit trouble. Interlock switch trouble.
Remedy: Replace the thermister. Replace the heater lamp. Replace the PCU PWB. Replace the thermostat. Check connection of the connector and the harness. Replace the power unit. Replace the interlock switch. Use SIM5-2 to check the flashing operation of the heater lamp.

Code: H7-14
Description: Low temperature trouble (TH_EX) in reset operation after JOB stop due to a fall in the fusing temperature during a JOB.
Causes: The specified temperature is not reached within the specified time in reset operation of the fusing temperature. Thermister trouble. Heater lamp trouble. PCU PWB trouble. Thermostat trouble. Connector, harness connection trouble. Power unit trouble.
Remedy: Use SIM5-2 to check the operation of the heater lamp. Replace the thermister. Replace the PCU PWB. Check connection of the connector and the harness. Replace the heater lamp. Replace the power unit. Use SIM14 to cancel the trouble.

Code: H8-00
Description: Fusing unit initial detection trouble
Causes: The initial detection fuse is not blown off though it is conducted for the specified time. Fusing unit trouble. PCU PWB trouble. Connection trouble of the connector and the harness.
Remedy: Use SIM6-51 to check the operations of the [FUCRU] fuse blowing circuit. Use SIM30-1 to check the [FUCRU] initial detection input signal. Replace the fusing unit. Replace the PCU PWB. Check connection of the connector and the harness.

Code: L1-00
Description: Scanner feed trouble
Causes: Scanner feed is not completed within the specified time. Scanner unit trouble. SCU PWB trouble Scanner control PWB trouble. Harness and connector connection trouble. Scanner home position sensor trouble. Scanner motor trouble.
Remedy: Use SIM1-1 to check the scan operation. Replace the scanner unit. Replace the SCU PWB. Check connection of the connectors and the harness. Replace the scanner home position sensor. Replace the scanner motor.