Lexmark C752 Service Manual page 76

5060-2XX
Step Action and questions
2 Check the ITU Release Lever for correct operation.
The ITU Release Lever is the blue lever located on the
left upper side frame above the ITU opening and can
be seen by opening and lowering the MPF Assembly.
When locked the lever should be at the 6 o'clock
position. When unlocked it should be in a 3 o'clock
position. Undue pressure is not required to operate the
lever.
Does the ITU release lever operate correctly?
3 Check the second transfer roll installation.
Is it installed correctly?
4 Check the display error log in the Diagnostic Menu. Is
100 ITU preceded in the log by a 104 ITU Error?
5 Remove the ITU assembly and check that the sensor
cable is seated in the handle of the ITU assembly
correctly.
Note: The sensor connector is located on the side of
the ITU handle assembly.
Is the cable seated correctly?
6 The front contamination shield is attached to the font
plate of the ITU frame and lies on the top of the ITU
belt.
Is the front contamination shield lying on the belt?
7 Make sure the ITU Cleaner Gear (A) is turning.
Observe the gear by opening the front Paper Jam Door
above the integrated paper tray 1. Observe the white
cleaner gear during POR. The gear should turn slowly
and smoothly for approximately 8 seconds before the
printer displays a 100 ITU error.
Is the ITU Cleaner Gear turning?
2-42
Service Manual
Yes No
Go to step 3 Repair as
necessary
Go to step 4 Reinstall the
second transfer
roll.
Go to "104 ITU Go to step 5
Error" on
page 2-44.
Go to step 6 Reinstall the
cable correctly.
Check again for a
100 ITU Error. If
100 ITU Error is
displayed, go to
step 6
Go to step 7 Position the
shield on top of
the belt.
Go to step 11 Go to step 8