Ricoh D037 Service Manual page 427

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Scanner home position error 1
The scanner home position sensor does not detect the "OFF" condition
during operation.
Scanner motor driver defective
Scanner motor defective
Harness between BCU and scanner motor disconnected
120 D
Scanner HP sensor defective
Harness between BCU and HP sensor disconnected
1. Check the cable connection between the BCU and scanner motor.
2. Check the cable connection between the BCU and HP sensor.
3. Replace the scanner motor.
4. Replace the scanner HP sensor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Scanner home position error 2
The scanner home position sensor does not detect the "ON" condition
during operation.
Scanner motor driver defective
Scanner motor defective
Harness between BCU and scanner motor disconnected
121 D
Scanner HP sensor defective
Harness between BCU and HP sensor disconnected
1. Check the cable connection between the BCU board and scanner
motor.
2. Check the cable connection between the BCU and HP sensor.
3. Replace the scanner motor.
4. Replace the HP sensor.
SM Appendix 4-5
SC Tables
D037/D038/D040/D041