Lexmark MX71x Service Manual page 165

Action
Step 8
a
Open the rear door and check the sensors (pass through):
•
Make sure the sensor is aligned and seated properly.
•
Check the sensor and sensor flag for damage. If damaged, then
replace the sensor. See
on page 835.
b
Reseat the sensor connections (J3T and J3B) on the controller board.
POR the machine.
Does the error remain?
Step 9
a
Reseat the divert motor connector J7 on the controller board.
b
Remove the two screws from the diverter motor. Pull away the motor,
and then check it for damage.
c
Do a feed test and check if the diverter motor runs. Enter Diagnostics
menu and navigate to:
OUTPUT BIN TESTS > Feed Tests
Select the output bin assigned as the mailbox option, and then select
Single.
Is the diverter motor functional and free of damage?
Step 10
Check the diverter plunger assembly:
•
Check the diverter plunger for damage.
•
Check the diverter cam for damage.
•
Check if the plunger moves up or down when the cam is rotated.
Is the diverter plunger assembly functional and free of damage?
Step 11
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 800.
Is the main drive gear free of damage?
"Sensor (mailbox pass through) removal"
"Mailbox main drive gear
Diagnostic information
Yes
Go to step 9.
Go to step 10.
Go to step 11.
Go to step 12.
165
7463
No
The problem is solved.
Replace the diverter
motor. See "Mailbox
diverter motor
removal" on page
814.
Replace the mailbox
diverter plunger
assembly. See
"Mailbox diverter
plunger assembly
removal" on page
805.
Replace the mailbox
main drive gear. See
"Mailbox main drive
gear removal" on
page 800.