Ricoh M281 Series Service Manual page 561

Rev. 02/09/2017
USB connector at the BiCU:

Reference for replacing the USB cable
Refer to "4. Replacement and Adjustment > Operation Panel (MP 501/601)
[D]: CMOS clear procedure:
Turn the machine power OFF.
1. Turn Dip switch 1-3 ON for 10 seconds
2. Turn Dip switch 1-3 OFF
3. Turn the machine power ON.
Dip switches location on the controller board:
SM 6-123
Troubleshooting Guide
D255/D256/M281/M282