Description: Heating roller warm-up failure
• The thermistor /1 does not detect the specified temperature and the warm-up cycle is not completed even after the lapse of a given period of time after the cycle has been started.
Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, DCPU, and MFPB for proper connection and correct as necessary. 3 Change fusing unit. 4 Change MFPB. 5 Change DCPU.
Code: 0501
Display: FUSER ERROR
Description: Fusing pressure roller warm-up failure
• The thermistor /2 does not detect the specified temperature and the warm-up cycle is not completed even after the lapse of a given period of time after the cycle has been started.
Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, DCPU, and MFPB for proper connection and correct as necessary. 3 Change fusing unit. 4 Change MFPB. 5 Change DCPU.
Code: 0510
Display: FUSER ERROR
Description: Abnormally low heating roller temperature
• The temperature detected by the thermistor /1 remains lower than the specified value for a given period of time or longer.
Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, DCPU, and MFPB for proper connection and correct as necessary. 3 Change fusing unit. 4 Change MFPB. 5 Change DCPU.
Code: 0511
Display: FUSER ERROR
Description: Abnormally low fusing pressure roller temperature
• The temperature detected by the thermistor /2 remains lower than the specified value for a given period of time or longer.
Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, DCPU, and MFPB for proper connection and correct as necessary. 3 Change fusing unit. 4 Change MFPB. 5 Change DCPU.
Code: 0520
Display: FUSER ERROR
Description: Abnormally high heating roller temperature
• The temperature detected by the thermistor /1 remains higher than the specified value for a given period of time or longer.
• The heater lamp remains ON for a given period of time or longer.
Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, DCPU, and MFPB for proper connection and correct as necessary. 3 Change fusing unit. 4 Change MFPB. 5 Change DCPU.
Code: 0521
Display: FUSER ERROR
Description: Abnormally high fusing pressure roller temperature
• The temperature detected by the thermistor /2 remains higher than the specified value for a given period of time or longer
Remedy: 1 Check the fusing unit for correct installation (whether it is secured in position). 2 Check the fusing unit, DCPU, and MFPB for proper connection and correct as necessary. 3 Change fusing unit. 4 Change MFPB. 5 Change DCPU.