Ricoh D025 Service Manual page 520

SC Tables
No. Type
Finisher corner stapler motor error
The 1st detection failure issues a jam error, and the 2nd failure issues
this SC code.
For 500-sheet finisher
798
B
-6
1.
2.
3.
D023/D025
Details (Symptom, Possible Cause, Troubleshooting Procedures)
The stapler HP sensor does not detect "ON"/"OFF" signal even the
stapler moves from the "OFF"/"ON" position for 0.6 seconds.
The stapler HP sensor does not detect "ON" when a stapling job is
commanded or the stapler moves.
Staple jam
Motor overload
Defective stapler motor
Check the connections and cables for the components mentioned
above.
Replace the HP sensor and/or stapler motor
Replace the finisher main board.
3-68 SM Appendix