Dell 3130cn Service Manual page 110

Replace the FEEDER
ASSY DUP.
(Refer to Removal 5/
Replacement 39.)
Version 1 2008.02.15
A
Checking the MOTOR
ASSY DUP for operation
Does the
MOTOR ASSY DUP
operate properly?
Yes
Checked by [Digital Output] -
[DO-13(Control Panel)/
DUPLEX MOTOR ON
(PC)] in diagnosis.
1 - 84
Chapter 1 Troubleshooting
No
Replace the PWBA MCU.
(Refer to Removal 30/
Replacement 14.)