Ricoh D027 Service Manual page 29

SC Tables
No. Type
Heating roller thermopile error
The temperature measured by the heating roller thermopile does not
reach 0°C for 6 seconds.
541 A
1.
2.
No. Type
Heating roller warm-up error 1
542 A
1.
2.
3.
No. Type
543 A Heating roller overheat 1 (software error)
The detected fusing temperature stays at 215°C for 1 second.
D027/D029 APPENDICES
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Loose connection of the heating roller thermopile
Defective heating roller thermopile
Defective thermopile
Check if the heating roller thermopile is firmly connected.
Replace the heating roller thermopile.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
The heating roller temperature does not reach the ready
temperature for 190 seconds after the heating lamp on.
The heating roller temperature does not reach 80°C for 18 seconds
after the IH inverter on.
Dirty or defective thermopile
Defective IH coil unit
Check if the heating roller thermopile is firmly connected.
Replace the thermopile.
Replace the IH coil unit.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective PSU
Defective IOB
Defective BICU
3-32 SM