Lexmark MS711 - Mailbox Undetected Service Check

Action Yes No
Step 10
Reseat all the connectors on the controller PCBA, then POR the machine.
Does the error remain?
Replace the controller
PCBA. See “Mailbox
controller PCBA
removal” on page
707.
If the error persists,
then replace the
mailbox. See “Mailbox
option removal” on
page 688.
The problem is solved.
Mailbox undetected service check
Action Yes No
Step 1
Is the mailbox the only output option installed?
Go to step 4. Go to step 2.
Step 2
Remove all output options and re-install only the mailbox.
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
mailbox.
Is it free of damage?
Go to step 4. Replace the upper
interface cable of the
output option
previously installed
under the mailbox.
Step 4
Check the lower interface cable. If damaged, replace the lower interface
cable. See “Mailbox lower interface cable removal” on page 710.
Re-seat the connector (J1A) on the controller PCBA, then POR the
machine.
Does the error remain?
Go to step 5. The problem is solved.
4063
Diagnostic information
297