Lexmark T652 Service Manual page 164

4062
Step
1 Check the media size setup and tray guides for all media
trays.
Does the media size, in use, match the size set for all media
trays?
2
Check the media trays for overfilling.
Are any of the media trays overfilled?
3
Check the media condition in all media trays.
Is any of the media in any of the media trays crumpled or
damaged?
4 Check the media tray pass through areas for obstructions.
Are the pass through areas in all the media trays free from
obstructions?
5
Check media origination.
Did the media originate from the MPF?
6
Check the MPF pick roll assembly.
Is the above component free of excess wear and
contamination?
7 Perform a MPF print test and check the MPF pick solenoid
for proper operation.
Does the above component operate properly?
8 Check media origination.
Did the media originate from the internal duplex?
9 Check the internal duplex media path for obstructions.
Is the above component free from obstructions?
10 Check the sensor (duplex input) for proper operation.
1. Enter the diagnostic mode
2. Select Duplex tests
3. Select sensor test
4. Observe the line item "input"
Does the display on the operator panel, change every time
the sensing area of the above sensor is interrupted or
blocked.
11
Check the above sensor for proper connection.
Is the above sensor connected properly?
2-130
Service Manual
Check Yes
Go to step 2. Replace the
media, or change
the media size
setup.
Remove any Go to step 3
excess new
media.
Replace the Go to step 4.
damaged media
with new.
Go to step 5. Remove
obstructions.
Go to step 6. Go to step 8.
Go to step 7. Clean or replace
the MPF pick roll
assembly.
Go to
roll assembly
removal (T650,
T652, T654)" on
page
Go to step 17. Replace the MPF
pick solenoid.
Go to
solenoid
assembly
removal (T650,
T652, T654)" on
page
Go to step 9 Go to step 13
Go to step 10 Remove
obstructions.
Go to step 12. Go to step 11.
Replace the Replace the
Sensor (duplex connection.
input).
Go to "Sensor
(duplex input)
removal (T652,
T654)" on
page 4-68.
No
"MPF pick
4-38.
"MPF pick
4-39.