Dell 3110cn Service Manual page 102

Replace the PWBA
MCU. (Removal 29/
Replacement 17)
Version 4 2008.01.17
Checking the SENSOR
PHOTO (No Paper
Sensor)
Does the number on the screen
increase by one, every time the actuator
Yes
of the SENSOR PHOTO (No Paper
Sensor) is operated?
Checked by [Digital Input] - [DI-10] in
[IOT Diagnosis].
A
Checking the ACTUATOR
NO PAPER MSI
Does the
Yes
ACTUATOR NO
PAPER MSI operate
smoothly?
Replace the CASSETTE
ASSY 250
No
Replace the MPF NO
PAPER SENSOR. (Ref)
Chapter 1 Troubleshooting
No