Ricoh MPC 2800 AT-C2, Field Service Manual, Page: 427 / 856

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
544 A
Heating roller fusing lamp overheat 1 (hardware error)
During stand-by mode or a print job, the detected heating roller temperature reaches
250 °C.
• Defective PSU
• Defective IOB
• Defective BICU
• Defective fusing control system
Related SC code: SC 543
1. Replace the PSU.
2. Replace the IOB.
3. Replace the BICU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
545 A
Heating roller fusing lamp consecutive full power 1
When the fusing unit is not running in the ready condition, the heating roller fusing
lamp keeps on full power for 8 seconds.
• Broken heating roller thermistor
Related SC code: SC 555
Replace the heating roller thermistor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
555 A
Pressure roller lamp consecutive full power 2
When the fusing unit is not running in the ready condition, the pressure roller-fusing
lamp keeps ON full power for 8 seconds or more.
• Broken pressure roller fusing lamp
Related SC code: SC 545
1. Replace the pressure roller fusing lamp.
2. Replace the PSU.
SC Tables
71
3