Ricoh D027 Service Manual page 35

SC Tables
No. Type
3.
No. Type
Pressure roller overheat 3 (hardware error)
The thermistor detects 220°C or more.
564 A
1.
2.
3.
No. Type
Pressure roller fusing lamp consecutive full power 3
When the fusing unit is not running in the ready condition, the pressure
roller fusing lamp keeps ON full power for 180 seconds or more.
565 A
1.
2.
No. Type
569 D Pressure roller contact sensor error
Pressure roller contact sensor failed to detect 3 times.
D027/D029 APPENDICES
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Replace the BICU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective PSU
Defective IOB
Defective BICU
Defective fusing control system
Replace the PSU.
Replace the IOB.
Replace the BICU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Broken pressure roller fusing lamp
Replace the pressure roller lamp.
Replace the PSU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Broken or defective pressure roller contact sensor
Deformed or broken pressure roller contact sensor feeler
3-38 SM