Vertical Lines And Bands (Process Direction) - Lexmark X651de Service Manual

Vertical lines and bands (process direction)

Leading edge
Trailing edge
Step
Check the media condition.
1
Load new, dry, recommended media.
Re-print the defective image.
Does the error continue?
Is the media transfer route and the media path clear of
2
debris?
Check the laser beam route.
3
Check for debris between the printhead assembly and the
PC drum.
Is the laser beam route free of debris and the glass
window, in the printhead assembly, free of contamination?
Check the print cartridge for proper installation.
4
Is the above component properly installed?
Check the transfer roll assembly for contamination and
5
wear.
Is the above component free of excess wear and
contamination?
Check the printhead assembly for proper connection.
6
Is the above component properly connected?
Perform a print test.
7
Does the problem remain?
Check Yes
Go to step 2. Problem resolved.
Go to step 3. Remove debris or
contamination.
Go to step 4. Remove debris or
clean the
printhead
assembly window.
Go to step 5. Inspect, clean and
reinstall replace
the print cartridge.
Go to step 6. Replace the
transfer roll
assembly.
Go to
"Transfer
roll assembly
removal" on
page 4-53.
Replace the Replace the
printhead connections.
assembly.
Go to
"Printhead
assembly
removal" on
page 4-32.
Contact next Problem resolved.
highest level of
tech support.
Diagnostic information
7462
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