Lexmark M52 Series Service Manual page 107

Action
Step 5
a
Remove the duplex/MPF tray. See
on page 434.
b
Enter the Diagnostics menu, and then navigate to:
Printer diagnostics and adjustments > Sensor tests
c
Find the sensor (Duplex path).
Does the sensor status change while toggling the sensor?
Step 6
a
Remove the right cover. See
page 420.
b
Check the sensor cable J27 on the controller board for proper
connection.
Is the cable properly connected?
Step 7
Reseat the cable.
Does the problem remain?
Step 8
Replace the sensor. See "Sensor (duplex path) with cover
removal" on page 466.
Does the problem remain?
Step 9
a
Remove the rear door. See
449.
b
Enter the Diagnostics menu, and then navigate to:
Printer diagnostics and adjustments > Motor tests
c
Select the motor (Duplex), and then touch Start.
Does the motor run?
Step 10
Reseat the motor cable J27 on the controller board.
Does the problem remain?
Step 11
Replace the motor. See "Motor (duplex) removal" on page
Does the problem remain?
"Duplex/MPF tray removal"
"Right cover removal" on
"Rear door removal" on page
Diagnostics and troubleshooting
107
Yes
Go to step 9.
Go to step 8.
Go to step 8.
Go to step 9.
Go to step 12.
Go to step 11.
Go to step 12.
450.
4064
No
Go to step 6.
Go to step 7.
The problem is
solved.
The problem is
solved.
Go to step 10.
The problem is
solved.
The problem is
solved.