Ricoh M065 Service Manual page 341

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 30 seconds.
545 A
Broken heating roller thermostat
Broken heating roller fusing lamp
1. Replace the heating roller thermostat.
2. Replace the heating roller fusing lamp.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Zero cross error
The zero cross signal is detected for 0.05 seconds three times
even though the heater relay is off when turning on the main power.
The zero cross signal is not detected for 3 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
547 D
signal is less than 45.
Defective fusing lamp relay
Defective fusing lamp relay circuit
Unstable power supply
1. Check the power supply source.
2. Replace the shorted 24V fuse on the PSU.
3. Replace the PSU
SM Appendix 3-31
SC Tables
M065/M066