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Action
Step 2
Change the paper size or adjust the size setting in the tray.
Does the problem remain?
Step 3
Check the paper path for paper jams and fragments.
Is the paper path free of jams and fragments?
Step 4
Remove the jams and fragments.
Does the problem remain?
Step 5
a
Enter the Diagnostics menu, and then navigate to:
Printer diagnostics & adjustments > Sensor tests
b
Find the sensor (Input).
Does the sensor status change while toggling the sensor?
Step 6
Check the sensor cable for proper connection and damage, and
replace if necessary.
Does the problem remain?
Step 7
Check the sensor for damage, and replace if necessary.
Does the problem remain?
Step 8
a
Enter the Diagnostics menu, and then navigate to: Printer
diagnostics & adjustments > Motor tests > Isolation
b
Touch Start, and then listen to the sound of the motor.
c
Check if the sound of the motor (isolation) is similar to this:
https://contentdelivery.lexmark.com/webcontent/kbase/arti
cles/SO8339/Bad_Isolation_Motor.mp3.
Does the isolation motor create a similar grinding sound?
Step 9
Replace the isolation unit. See
page
409.
Does the problem remain?
"Isolation unit removal" on
Diagnostics and troubleshooting
82
Yes
Go to step 3.
Go to step 5.
Go to step 5.
Go to step 10.
Go to step 7.
Go to step 8.
Go to step 9.
Contact the next
level of support.
5028
No
The problem is
solved.
Go to step 4.
The problem is
solved.
Go to step 6.
The problem is
solved.
The problem is
solved.
Go to step 10.
The problem is
solved.
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