Lexmark 7462 series Service Manual page 106

Sensor (duplex input) lingering jam service check
Action
Step 1
Remove obstructions in the internal duplex media path.
Does the problem remain?
Step 2
Check the front duplex guide assembly for damage, and if
necessary, replace the front duplex guide assembly. Go to
duplex guide assembly removal" on page
Does the problem remain?
Step 3
Check if the display on the operator panel changes every time the
sensing area of the media tray sensor (duplex input) is interrupted
or blocked.
a
Enter the Diagnostic mode.
b
Select Duplex tests.
c
Select Sensor test.
d
Observe the line item, "input."
If necessary, replace the connection or the sensor (duplex input).
Go to "Sensor (duplex input) removal" on page
Does the problem remain?
Step 4
Remove obstructions in the aligner assembly.
Does the problem remain?
Step 5
Remove obstructions in the external duplex media path.
Does the problem remain?
Step 6
Remove, then properly reinstall the external duplex unit assembly.
Does the problem remain?
"Front
357.
382.
Diagnostic information
106
Yes No
Go to step 2. The problem is
solved.
Go to step 3. The problem is
solved.
Go to step 4. The problem is
solved.
Go to step 5. The problem is
solved.
Go to step 6. The problem is
solved.
Go to step 7. The problem is
solved.
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