Ricoh D037 Service Manual page 452

SC Tables
No. Type
Heating roller fusing lamp overheat 2 (software error)
The detected pressure roller temperature stays at 230°C or more for 1
second.
553 A
Related SC code: SC 543
1.
2.
3.
No. Type
Heating roller fusing lamp overheat 2 (hardware error)
The heating roller thermistor detects 250°C or more.
554 A
1.
2.
3.
No. Type
555 A Heating 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 130 seconds or more.
Related SC code: SC 545
D037/D038/D040/D041
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective PSU
Defective BCU
Replace the heating roller thermistor.
Replace the PSU.
Replace the BCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective PSU
Defective BCU
Defective fusing control system
Replace the heating roller thermistor.
Replace the PSU.
Replace the BCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Broken heating roller fusing lamp
4-30 SM Appendix