Ricoh D104 Field Service Manual page 599

No. Type
Pressure roller thermister error 3
The temperature measured by the pressure roller thermistor (center) does not reach
0°C for 45 seconds.
561 A
• Loose connection of pressure roller thermistor (center)
• Defective pressure roller thermistor (center)
1. Check that the pressure roller thermistor (center)is firmly connected.
2. Replace the pressure roller thermistor (center).
No. Type
Pressure roller overheat 3 (software error)
The detected fusing roller temperature stays at 230°C or more for 1 second.
• Defective PSU
563 A
• Defective BCU
1. Replace the PSU.
2. Replace the BCU.
No. Type
Pressure roller overheat 3 (hardware error)
The pressure roller thermistor (center) detects 250°C or more.
• Defective PSU
564 A
• Defective BCU
• Defective fusing control system
1. Replace the PSU.
2. Replace the BCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC Tables
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597