Lexmark C752 Service Manual page 77

Step Action and questions
8 Check to see if the ITU Drive Roll Gear (A) is turning
during POR. Observe the gear by opening the MFP
door to its horizontal position. Observe the gear on the
left end of the ITU Drive Roll. The ITU Drive Roll Gear
should turn for a few seconds slowly and smoothly
before the printer posts a 100 ITU error.
Does the Gear turn?
9 Check to see if the ITU Drive Motor is turning during
POR. Observe the ITU Motor during POR by removing
the Rear Cover.
Is the ITU Drive Motor turning?
Check the printer is setting on a solid flat surface.
10
Is the printer setting on a solid flat surface?
11 Make sure the ITU drive motor assembly cable is
correctly installed to the ITU drive motor and at
connector location J64 on the system board.
Is the cable correctly installed?
12 Make sure the ITU Autoconnect Cable is installed
correctly at connector location J72 on the system
board.
Is the cable correctly installed?
13 Make sure the ITU Autoconnect connector in the
printer is seated correctly in the connector plate.
Is the connector seated correctly?
Yes No
Go to step 10 Go to step 9
Replace the "ITU Go to step 10
drive assembly"
on page 4-40
Go to step 11 Place the printer
on a solid flat
surface.
Go to step 12 Install the cable
correctly
Go to step 13 Install the
connector/cable
correctly
Replace the Replace the ITU
following FRUs in Autoconnect
the following cable.
order:
1. "ITU
assembly"
on
page 4-40.
2. "System
board" on
page 4-67.
Diagnostic information
5060-2XX
2-43