Lexmark M5150 Service Manual page 159

Action
Step 3
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?
Step 4
Check the auto connector end of the option previously installed below the
staple finisher.
Is it free of damage?
Step 5
Check the lower interface cable. If damaged, then replace the lower
interface cable. See "Stapler lower interface cable removal" on
page 661.
Remove the left cover. Reseat the cable J15 on the controller PCBA, then
POR the machine.
Does the error remain?
Step 6
a
Open the rear door and check the sensor (pass through):
•
Check the sensor flag for damage. If damaged, then replace the
sensor. See "Sensor (stapler pass through) removal" on
page 677.
•
Make sure the sensor is aligned and properly seated.
b
Do a sensor test. Enter Diagnostics Menu and navigate to :
FINISHER TESTS > Finisher Sensor Test > Pass and Media
Does the display on the operator panel change every time the sensing
area of the sensor tested is interrupted or blocked?
Step 7
Reseat the connector J13 on the controller PCBA, and then POR the
machine.
Does the error remain?
Yes
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 5.
Go to step 6.
Go to step 7.
Go to step 8.
Diagnostic information
159
4063
No
Go to step 4.
Replace the upper
interface cable of the
output option
previously installed
under the staple
finisher.
The problem is solved.
Replace the sensor
(pass through). See
"Sensor (stapler pass
through) removal" on
page 677.
The problem is solved.