Ricoh D131 Service Manual page 524

Stack Plate Motor Error 3: Rear Motor (D610)
The stack plate HP sensor (rear) does not activate within 500 ms
SC722-37 D
after the motor turns on. The 1st detection failure causes a jam
error, and the 2nd failure causes this SC code.
If the motor is operating


If the motor is not operating:




Jogger Top Fence Motor (D610)
The top fence HP sensor detected that:
The top fence did not arrive at the home position within the
SC722-39 B
specified number of pulses.
-or-
The top fence failed to leave the home position within the specified
number of pulses.
If the jogger top fence motor is operating:


If the jogger top fence motor is not operating:




SM Appendix
Rear stack plate HP sensor harness loose, broken, defective
Rear stack plate HP sensor defective
Motor blocked by an obstruction
Motor harness loose, broken, defective
Motor defective
Booklet finisher main board defective
Top fence HP sensor harness loose, broken, defective
Top fence HP sensor defective
Motor blocked by an obstruction
Motor harness loose, broken, defective
Motor defective
Finisher main board defective
2-57
SC700: Peripherals
D131/D132/D133