Lexmark M5150 Service Manual page 143

Action
Step 7
Note: The sensor (mailbox rear door interlock) should be disabled by
blocking the sensor.
Open the mailbox rear door. Do a feed test. Enter Diagnostics menu and
navigate to:
Output bin tests > Feed to all bins
Check if the mailbox transport rollers rotate when the test is performed.
Does the main motor make the transport rollers rotate?
Step 8
Open the mailbox left cover. Check the main drive gear for damage and
obstructions.
Note: To access the main drive gear, see
removal" on page 703.
Is the main drive gear free of damage?
Step 9
Open the rear door and do the following:
•
check the rear door for damage
•
manually turn the rear door rollers and check if they are ok
•
check if the rear door opens and closes properly
Is the rear door functional and free of damage?
Step 10
Reseat all connectors on the controller PCBA, then POR the machine.
Does the error remain?
"Mailbox main drive gear
Diagnostic information
143
Yes No
Go to step 8. Replace the mailbox
main motor. See
"Mailbox main motor
removal" on page
706.
Go to step 9. Replace the mailbox
main drive gear. See
"Mailbox main drive
gear removal" on
page
Go to step 10. Replace the mailbox
rear door. See
"Mailbox rear door
removal" on page
689.
Replace the controller The problem is solved.
PCBA. See"Mailbox
controller PCBA
removal" on page
707.
If the error persists,
then replace the
mailbox option. See
"Mailbox option
removal" on page
688.
4063
703.