SC Tables
D037/D038/D040/D041 4-28 SM Appendix
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Heating roller fusing lamp consecutive full power 1
When the fusing unit is not running in the ready condition, the heating
roller fusing lamp keeps on full power for 37 seconds.
Broken heating roller thermistor
Related SC code: SC 555
545 A
Replace the heating roller thermistor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Zero cross error
The zero cross signal is detected three times even though the
heater relay is off when turning on the main power.
The zero cross signal is not detected for 2 seconds even though
the heater relay is on after turning on the main power or closing the
front door.
The detection error occurs twice or more in the 11 zero cross signal
detections. This error is defined when the detected zero cross
signal is less than 45.
Defective fusing lamp relay
Defective fusing lamp relay circuit
Unstable power supply
547 D
1. Check the power supply source.
2. Replace the PSU
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Heating roller thermistor (end) error 2 551 A
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