Ricoh D025 Service Manual page 475

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Paper transfer unit contact error
The paper transfer unit contact sensor does not detect the movement of
actuator at the sensor while the polygon motor rotates.
Defective paper transfer unit contact sensor
Defective paper transfer unit contact motor
Broken +24V fuse on PSU
452 D
Defective IOB
1. Check the connection between the paper transfer unit and PSU.
2. Replace the paper transfer unit contact sensor.
3. Replace the paper transfer unit contact motor.
4. Replace the +24V fuse on the PSU.
5. Replace the IOB.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Separation power pack output error
An interrupt checks the status of the power pack every 20 ms. This SC
is issued if the BICU detects a short in the power pack 10 times at
D(ac).
460 D
Damaged insulation on the high-voltage supply cable
Damaged insulation around the high-voltage power supply.
1. Replace the high-voltage supply cable.
2. Replace the high-voltage power supply unit.
3. Replace the IOB.
SM Appendix 3-23
SC Tables
D023/D025