Description: Improper cartridge (Destination error, life cycle error) The destination of the machine differs from that of the CRUM. The life cycle information is other than "Not used (FFh)."
Causes: CRUM chip defect Improper developing unit
Remedy: Replace the CRUM chip. Replace the developing unit.
Code: F5-02
Description: Copy lamp lighting abnormality The copy lamp does not turn on.
Remedy: Use SIM 5-3 to check the copy lamp operations. When the copy lamp lights up. Check the harness and the connector between the CCD unit and the MCU PWB. When the copy lamp does not light up. Check the harness and the connector between the copy lamp unit and the MCU PWB. Replace the copy lamp unit. Replace the MCU PWB.
Code: F6-10
Description: FAX board trouble.
Causes: FAX controller and FAX board memory abnormality.
Remedy: Check connector/harness of FAX control PWB and MCU PWB. Check the grounding of the copier. Check FAX control PWB ROM. Replace the FAX PWB.
Code: H2-00
Description: Thermistor open The thermistor is open. The fusing unit is not installed.
Causes: Thermistor abnormality Control PWB abnormality Fusing section connector disconnection The fusing unit is not installed.
Remedy: Check the harness and the connector between the thermistor and the PWB. Use SIM 14 to clear the self diagnostic display.
Code: H3-00
Description: Heat roller high temperature detection The fusing temperature exceeds 240C°.
Causes: Thermistor abnormality Control PWB abnormality Fusing section connector disconnection.
Remedy: Use SIM 5-02 to check the heater lamp blinking operation. When the lamp blinks normally. Check the thermistor and its harness. Check the thermistor input circuit on the control PWB. When the lamp keeps ON. Check the power PWB and the lamp control circuit on the MCU PWB. Use SIM 14 to clear the self diagnostic display.
Code: H4-00
Description: Heat roller low temperature detection When the fusing temperature is lower than 150C° after 55sec from the start of warming up. When the warming up complete temperature is not reached in 30sec from reaching 150C°. When the fusing temperature is lower than 100C° after 20sec from ready start. When the fusing temperature is lower than 145C° when printing."
Remedy: Use SIM 5-02 to check the heater lamp blinking operation. When the lamp blinks normally. Check the thermistor and its harness. Check the thermistor input circuit on the control PWB. When the lamp does not light up. Check for disconnection of the heater lamp and the thermostat. Check the interlock switch. Check the power PWB and the lamp control circuit on the MCU PWB. Use SIM 14 to clear the self diagnostic display.