Ricoh D025 - Page 493

SC Tables
SM Appendix 3-41 D023/D025
Appendix
Service Call
Conditions
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Pressure roller fusing lamp overheat (hardware error)
The pressure roller thermistor detects 250°C or more.
 Defective PSU
 Defective IOB
 Defective BICU
 Defective fusing control system
554 A
1. Replace the pressure roller thermistor.
2. Replace the PSU.
3. Replace the IOB.
4. Replace the BICU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
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
555 A
1. Replace the pressure roller fusing lamp.
2. Replace the PSU.