Ricoh MP C307 Field Service Manual page 446

SC5xx: Paper Feed and Fusing
No. Type
when:
•
•
•
•
•
•
1.
2.
3.
4.
5.
No. Type
SC542-12 D Fusing thermopile cannot reload (low power)
Fusing temperature failed to reach a temperature of 80 degrees C after passing seven seconds
when:
•
•
•
SC542-13 D Fusing thermopile cannot reload (low power)
Fusing temperature failed to reach the reload permit temperature after passing eight seconds
when:
•
•
•
•
•
•
•
1.
2.
3.
4.
5.
No. Type
440
Details (Symptom, Possible Cause, Troubleshooting Procedures)
The machine starts warming up.
The machine returns from energy saver mode.
The fusing lamp is activated.
Dirty or deformed thermopile lenses
Input voltage out of specification (out of warranty)
Fuse blown out
Check the power supply voltage (Reconnect the power cord).
Check and clean the thermopile lenses or replace the fusing thermopile.
Replace the fusing unit.
Replace the BiCU.
Replace the PSU (AC).
Details (Symptom, Possible Cause, Troubleshooting Procedures)
The machine starts warming up.
The machine returns from energy saver mode.
The fusing lamp is activated.
The machine starts warming up.
The machine returns from energy saver mode.
The fusing lamp is activated.
Dirty or defective thermopile lenses
Thermopile modification/float
Input voltage out of specification (out of warranty)
Thermostat blown out.
Check the power supply voltage (Reconnect the power cord).
Check and clean the thermopile lenses or replace the fusing thermopile.
Replace the fusing unit.
Replace the BiCU.
Replace the PSU (AC).
Details (Symptom, Possible Cause, Troubleshooting Procedures)