Lexmark MX71X - Page 192

Action Yes No
Step 3
Check the lower interface cable. If damaged, then replace the lower
interface cable. See
“Stapler/offset stacker lower interface cable
removal” on page 754.
Remove the left cover. Reseat the cable J15 on the controller board, then
POR the machine.
Does the error remain?
Go to step 4. The problem is solved.
Step 4
Remove the left cover. Reseat the cable J7 on the controller board then
POR the machine.
Does the error remain?
Go to step 5. The problem is solved.
Step 5
Remove the right cover. Reseat the two cables on the stapler carriage,
then POR the machine.
Does the error remain?
Go to step 6. The problem is solved.
Step 6
Check the stapler carriage cable J7 from the controller board to the stapler
end.
Is it free of damage?
Go to step 7. Replace the door limit
switch with cable. Go to
“Stapler door close
limit switch removal”
on page 786.
If the error persists,
then replace the
stapler carriage. See
“Stapler carriage
assembly removal” on
page 785.
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
785.
Step 8
Open the left cover, reseat all connectors on the controller board and then
POR the machine.
Does the error remain?
Replace the controller
board. See
“Stapler/
offset stacker
controller board
removal” on page
756.
If the error persists,
then replace the staple
finisher. See
“Staple
finisher/offset stacker
option removal” on
page 723.
The problem is solved.
7463
Diagnostic information
192