Lexmark MX71X - Sensor (Input) Never‑ or Late‑Arriving Jam Service Check

Action Yes No
Step 4
Check the MPF feeder lift plate assembly for damage.
Is the component free from damage?
Go to step 5. Replace the MPF
feeder lift plate. See
“MPF feeder lift plate
removal” on page
465.
Step 5
Check all the media trays for proper media installation.
Is the media properly installed in all the media trays?
Go to step 6. Remove and properly
reinstall the media.
Step 6
Check all of the media trays and the media path for partially fed media.
Are the media trays and the media path free from any partially fed pieces
of media?
Go to step 7. Remove any pre-
staged or jammed
media.
Step 7
Check the sensor (input) for proper operation.
a Enter the diagnostic mode.
b Select Base sensor test.
c Observe the line item input.
Does the display on the operator panel change every time the sensing
area of the sensor is interrupted or blocked?
Go to step 9. Go to step 8.
Step 8
Check the sensor (input) for proper connection.
Is the sensor connected properly?
Replace the Sensor
(input). See
“Sensor
(input) removal” on
page 473.
Go to step 9.
Replace the
connection.
Go to step 9.
Step 9
Perform a print test.
Does the problem remain?
Contact the next level
of support.
The problem is solved.
Sensor (input) never‑ or late‑arriving jam service check
Action Yes No
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?
Go to step 2. Replace the media, or
change the media size
setup.
Step 2
Check the media trays for overfilling.
Are any of the media trays overfilled?
Remove any excess
new media.
Go to step 3.
7463
Diagnostic information
86