Ricoh D025 Service Manual page 515

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Shift motor error
The shift motor HP sensor does not detect any change for 1.86
seconds after the shift motor has turned on at power on or during its
operation.
770 B
Defective shift motor
Defective shift motor HP sensor
1. Check the connections to the shift motor and the shift motor HP
sensor.
2. Defective shift motor or the shift motor HP sensor.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Bridge unit error
The machine recognizes the finisher, but does not recognize the bridge
unit.
791 D
Defective connector
Broken harness
1. Check the connections between the bridge unit and the machine.
2. Install a new bridge unit.
SM Appendix 3-63
SC Tables
D023/D025