Ricoh M022 Service Manual page 674

6. Troubleshooting
No. Type
561 A
No. Type
6
563 A
672
CÓPIA NÃO CONTROLADA
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Pressure roller thermistor error
The temperature detected by the pressure roller thermistor does not reach 0 °C for
20 seconds.
• Loose connection of the pressure roller thermistor
• Defective thermopile
• Defective pressure roller thermistor
1. Check if the pressure roller thermistor is firmly connected.
2. Replace the thermopile.
3. Replace the pressure roller thermistor.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Pressure roller overheat (software error)
The temperature detected by the pressure roller thermistor stays at 230°C or more
for 1 second.
• Defective PSU
• Defective IPU
• Defective BCU
1. Replace the PSU.
2. Replace the IPU.
3. Replace the BCU.
CÓPIA NÃO CONTROLADA