Lexmark MS711 - Finisher Undetected Service Check

Action Yes No
Step 8
Remove the stapler cartridge. Using a flashlight, check the sensor
(cartridge present) inside the stapler cartridge assembly. Manually
actuate the sensor flag, and check if it toggles properly.
Is the sensor functioning properly?
Go to step 9. Replace the staple
finisher assembly. Go
to “Staple finisher
option removal” on
page 621.
Step 9
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
controller PCBA
removal” on page
663.
If the error persists,
then replace the staple
finisher assembly. Go
to “Staple finisher
option removal” on
page 621.
The problem is solved.
Finisher undetected service check
Action Yes No
Step 1
Is the staple finisher the only output option installed?
Go to step 4. Go to step 2.
Step 2
Remove all output options and re-install only the staple finisher.
Enter Diagnostics Menu and navigate to:
Output bin tests > Feed to all bins
Does the output option feed to all bins normally?
The problem may not
be on this option tray.
Re‑install the
remaining output
options one at a time
and test each option
for errors. Proceed
with the appropriate
service check based on
the error message and
the output option
being tested.
Go to step 3.
Step 3
Check the auto connector end of the option previously installed below the
staple finisher.
Is it free of damage?
Go to step 4. Replace the upper
interface cable of the
output option
previously installed
under the staple
finisher.
4063
Diagnostic information
301