6.Troubleshooting
176
Error Name/Error Condition/Major Cause/Solution
Deformed thermistor
Thermistor not in the correct position
Defective fusing lamp
1. Reset the SC.
2. Replace the fusing unit.
3. Replace the drawer harness.
4. Replace the PSU.
Error Name/Error Condition/Major Cause/Solution
Unstable fusing thermistor temperature
While the machine is warming-up or printing, the detected temperature stays at
100℃ or less than the target temperature for 5.2 seconds, and this consecutively
occurs 104 times.
Unstable connector contact of fusing thermistor
Error Name/Error Condition/Major Cause/Solution
The zero cross signal is detected 3 times even though the fusing lamp relay is
off when turning on the main power.
The number of zero cross signal interrupts do not reach a specified value during
frequency detection.
The zero cross signal is not detected for 3 seconds even though the fusing lamp
relay is on.
Defective fusing relay
Defective fusing relay circuit
Unstable frequency of the power supply line
1. Check the power supply source.
2. Replace the PSU
Error Name/Error Condition/Major Cause/Solution
Non-contact thermistor error
The thermistor output is less than 0°C for 5 seconds after the fusing lamp turns ON.
Disconnected or defective non-contact thermistor
1. Reset the SC.
2. Replace the fusing unit.
3. Replace the drawer harness.