Causes: • The polygon motor does not rotate evenly even after the lapse of a given period of time after it has been started. • The motor lock signal remains HIGH for a given period of consecutive time while the polygon motor is being rotated.
Code: 0310
Description: Laser malfunction
Causes: • The SOS signal is not detected within a given period of time after the output of the laser has been started.
Code: 0500
Description: Fuser warm-up failure
Causes: • 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.
Code: 0502
Description: Thermistor open-circuit failure
Causes: • The temperature detected by the thermistor does not reach a predetermined level even after the lapse of a given period time after the warm-up cycle has been started.
Code: 0503
Description: Thermistor resistance failure
Causes: • The difference between the temperature detected by thermistor/1 and that detected by thermistor/2 exceeds a predetermined value.
Code: 0510
Description: Abnormally low fuser temperature
Causes: • The temperature detected by the thermistor /1 remains lower than the specified value for a given period of time or longer.
Code: 0520
Description: Abnormally high fuser temperature
Causes: • 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
Code: 0650
Description: Scanner home sensor abnormalities
Causes: • A low motor lock signal is not detected even after the lapse of a predetermined period of time after the polygon motor has been started. • The motor lock signal remains HIGH for a predetermined consecutive period of time while the polygon motor remains energized.