Lexmark MX71X - Sensor (HPU Media Align) Jam Service Check

Sensor (HPU media align) jam service check
Action Yes No
Step 1
Check the lower interface cable. If damaged, then replace the lower
interface cable. See
“Staple, hole punch lower interface cable removal”
on page 861.
Remove the left cover. Reseat the cable J15 on the controller board, then
POR the machine.
Does the error remain?
Go to step 2. The problem is solved.
Step 2
Do the following:
• Open, and then close the rear door. Check if the rear door closes
properly.
• Check the rear door rollers for damage.
• Remove all obstructions along the paper path.
Is the rear door functional and free of damage?
If the error persists,
then go to step 3.
Replace the finisher
option. See
“Staple,
hole punch finisher
option removal” on
page 840.
Step 3
a Open the rear door. Remove all obstructions and media fragments on
the sensor (HPU media align).
b Open the left cover, and then reseat the sensor cables J3 and J18 on
the HPU controller board.
Does the error remain?
Go to step 4. The problem is solved.
Step 4
a Open the rear door. Check the upper and lower rollers on the finisher
side for damage.
b Open the left cover. Reseat the cable J22 on the HPU controller board.
c Check the paper path gears for damage.
Note: To access the gears, remove the four screws from the HPU
controller board (no need to remove the board, just move it out of
the way), and then remove the screws securing the grounding plate.
The gears are found under the grounding plate.
Are the paper path components free of damage?
If the error persists,
then go to step 5.
Replace the finisher
option. See
“Staple,
hole punch finisher
option removal” on
page 840.
Step 5
a Reseat all cables on the HPU controller board.
b Reseat the cables J27, J19, and J13 on the stapler controller board.
Does the error remain?
Replace the finisher
option. See
“Staple,
hole punch finisher
option removal” on
page 840.
If the error persists,
then go to step 6.
The problem is solved.
7463
Diagnostic information
213