Lexmark MX81 series - Finisher Undetected Service Check

Action Yes No
Step 7
Open the left cover, reseat all connectors on the controller PCBA and then
POR the machine.
Does the error remain?
Replace the controller
PCBA. Go to “Stapler/
offset stacker
controller PCBA
removal” on page
613.
If the error persists,
then replace the staple
finisher assembly. Go
to “Staple finisher/
offset stacker option
removal” on page
595.
The problem is solved.
Finisher undetected service check
Action Yes No
Step 1
Check the auto connector end of the printer below the staple finisher.
Is it free of damage?
Go to step 2. Replace the upper
interface cable of the
printer under the
staple finisher.
Step 2
Check the lower interface cable. If damaged, then replace the lower
interface cable. Go to “Stapler/offset stacker lower interface cable
removal” on page 611.
Remove the left cover. Reseat the cable (J15) on the controller PCBA, then
POR the machine.
Does the error remain?
Go to step 3. The problem is solved.
Step 3
Open the left cover. Reseat the cables (J18 and J15) on the controller PCBA,
then POR the machine.
Does the error remain?
Go to step 4. The problem is solved.
Step 4
Open the left cover, reseat all connectors on the controller PCBA and then
POR the machine.
Does the error remain?
Replace the controller
PCBA. Go to “Staple
finisher/offset stacker
option removal” on
page 595.
If the error persists,
then replace the staple
finisher. Go to “Staple
finisher/offset stacker
option removal” on
page 595.
The problem is solved.
7463
Diagnostic information
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