Ricoh IM 550F Field Service Manual page 649

6.Troubleshooting
When connecting the cable, hold the molded part of the cable as shown below so as not to apply
excessive force on the connector part. Applying excessive force toward the upper direction on the
connector may cause connection failure.
USB connector at the BiCU (PCB16):
•
Replacing the USB cable
Refer to "Operation Panel
[D]: CMOS clear
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.
4.
Dip switch on the controller board (PCB15):
638
Unit".