Ricoh Aficio MP C305SP Field Service Manual page 665

No. Type
Heating roller warm-up error (sensor 4)
The temperature of the heating roller does not reach 20 °C within the prescribed
time.
• Dirty thermopile lenses
572
A
• Defective heating roller thermistor
-03
• Input voltage out of the warranty (out of specification)
1. Check and clean the thermopile lenses.
2. Replace the thermopile
3. Replace the thermistor.
No. Type
Pressure roller overheat (software error): End
The temperature detected by the pressure roller thermistor stays at the prescribed
temperature within the prescribed time.
573 A
• Defective PSU
• Defective BICU
1. Replace the PSU.
2. Replace the BICU.
No. Type
Pressure roller overheat (hardware error): End
The temperature detected by the pressure roller thermistor detects prescribed
temperature.
574 A
• Defective BICU
• Defective fusing control system
1. Replace the thermistor.
2. Replace the BICU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC Tables
663