Ricoh D025 Service Manual page 474

SC Tables
No. Type
Image transfer belt contact motor error
The image transfer belt contact sensor does not detect the movement
of actuator at the sensor while the polygon motor rotates.
442 D
1.
2.
No. Type
Image transfer unit error
The machine detects the encoder sensor error.
443 C
1.
2.
3.
D023/D025
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Dirty image transfer belt contact sensor
Defective image transfer belt contact motor
Disconnected connector of image transfer belt contact sensor or
motor
Disconnected cable
Replace the image transfer belt contact sensor.
Replace the image transfer belt contact motor.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective encoder sensor
Image transfer unit installation error
Defective image transfer unit motor
Check if the image transfer unit is correctly set.
Replace the image transfer unit motor.
Replace the image transfer unit.
3-22 SM Appendix