Lexmark MX71X - HPU Motor Jam Service Check

Action Yes No
Step 7
Remove the stapler carriage. Manually turn the gears to open the stapling
mechanism. While open, check the area inside the stapling mechanism
and make sure it is free from obstructions.
Is it free of damage?
Go to step 8. Replace the stapler
carriage. See
“Stapler
carriage assembly
removal” on page
848.
Step 8
Reseat all connectors on the stapler controller board and then POR the
machine.
Does the error remain?
Replace the stapler
controller board. See
“Stapler controller
board removal” on
page 851.
If the error persists,
then replace the
finisher. See
“Staple,
hole punch finisher
option removal” on
page 840.
The problem is solved.
HPU motor jam service check
Action Yes No
Step 1
a Reseat the finisher option on the printer.
b Clear obstructions along the paper path.
c Make sure that the sensors (pass through) are free from obstructions.
d Close the rear door properly.
e POR the printer.
Does the error remain?
Go to step 2. The problem is solved.
Step 2
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 3. The problem is solved.
7463
Diagnostic information
209