Ricoh Aficio MP C305SP Field Service Manual page 659

No. Type
Heating roller thermopile overheat (software error)
The temperature detected by the heating roller thermopile stays at the prescribed
temperature within the prescribed time.
543 A
• Defective PSU
• Defective BICU
1. Replace the PSU.
2. Replace the BICU.
No. Type
Heating roller thermopile overheat (hardware error)
The temperature detected by the heating roller thermopile reaches the prescribed
temperature.
• Defective BICU
544 A
• Defective fusing control system
Related SC code: SC 543
1. Replace the BICU.
No. Type
Heating roller fusing lamp consecutive full power
When the fusing unit is not running in the ready condition, the heating roller fusing
lamp keeps on full power for the prescribed time.
545 A
• Defective thermistor
• Broken heater
1. Replace the thermistor.
2. Replace the heating roller fusing lamp.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC Tables
657