Duplex Control Jam Service Check - Lexmark MS81x Service Manual

Action
Step 3
Check the sensor (duplex path) for proper operation.
a
Enter the diagnostic mode.
b
Select duplex tests.
c
Select sensor test.
d
Observe the line item sensor.
Does the display on the control panel change every time the sensing area
of the above sensor is interrupted or blocked?
Step 4
Check the above sensor for proper connection.
Is the above sensor connected properly?
Step 5
Check the upper redrive for damage.
Is the above component free from damage?
Step 6
Perform a print test and check the upper redrive motor for proper
operation.
Does the above component operate properly?
Step 7
Perform a print test.
Does the problem remain?

Duplex control jam service check

Action
Step 1
Check the duplex path for media jams and obstructions.
Is the duplex path free from media jams and obstructions?
Step 2
Ensure the duplex motor cable and the socket "DUPLEX MTR" on the
controller board is properly connected.
Is the above cable properly connected?
Yes
Go to
Replace the sensor
(duplex path) See
"Sensor (duplex path)
removal" on page
344.
Go to step 6.
Go to step 7.
Contact the next
highest level of
technical support.
Yes
Go to step 2.
Go to step 3.
Diagnostic information
76
No
step 5. Go to step 4.
Reseat the connection
Replace the upper
redrive. See
redrive removal" on
page 331.
Replace the upper
redrive motor. See
upper-redrive-
motor-removal-
topic.
Problem solved.
No
Remove media jams
and obstructions.
Reseat the connection.
4063
"Upper