Lexmark W840 Service Manual page 119

Skew
The printed image is not paralleled with both sides of the media.
Step Check
1 Check printer installation placement.
Check the installation surface for irregularities.
Check for missing printer foot.
Is the setup surface normal?
2 Properly load media into the media tray assembly.
Properly install the media tray assembly into the printer.
Re-print the defective image.
Does the error continue?
3 Is the media transfer route and the media route free of
contamination or debris?
4 Check the drive rolls on the media transfer route.
Check all rolls on the transfer route for contamination,
wear or damage.
Check whether the pinch rolls rotate freely and spring
pressure is applied evenly.
Are all drive rolls free of contamination, wear or
damage?
5 Check the printer engine card assembly.
Replace the printer engine card assembly
Perform a print test.
Does the error continue?
Yes No
Go to step 2. Correct the
installation
placement.
Go to step 3. Problem solved.
Go to step 4. Remove debris
or
contamination.
Go to step 5. Replace
defective rolls.
(Go to
applicable repair
procedures for
replacement.)
Problem solved. Replace the RIP
card assembly.
Go to
assembly
removal" on
page
Diagnostic information
4024-XXX
"RIP card
4-127.
2-99