Ricoh MPC 2800 AT-C2 Field Service Manual page 429

No. Type
Pressure roller warm-up error
After the main switch is turned on or the door is closed, the pressure roller
temperature does not reach the ready temperature within 70 seconds during fusing
unit warm-up.
552 A
• Pressure roller fusing lamp broken
Related SC code: SC 542
1. Check if the pressure roller thermistor is firmly connected.
2. Replace the pressure roller fusing lamp.
No. Type
Pressure roller fusing lamp overheat (software error)
The detected pressure roller temperature stays at 230°C or more for 1 second.
• Defective PSU
• Defective IOB
• Defective BICU
553 A
Related SC code: SC 543
1. Replace the pressure roller thermistor.
2. Replace the PSU.
3. Replace the IOB.
4. Replace the BICU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC Tables
3
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