Partial Lack - Lexmark C93x Service Manual

5057-XXX

Partial lack

Leading edge
Trailing edge
Step
1
Check the media condition.
Load new, dry, recommended media.
Re-print the defective image.
Does the problem remain?
2
Check the four toner cartridges.
Re-print the defective image.
Is the image density normal?
3
Check the laser beam route.
Check for debris between the printhead assembly and
the PC drum.
Check the four printhead assembly windows for
contamination.
Is the laser beam route free of debris and the glass
window, in the printhead assembly, free of
contamination?
4 Check the 2nd transfer roll assembly for contamination
and wear.
Is the 2nd transfer roll assembly free of excess wear and
contamination?
5 Replace the transfer belt unit assembly. Go to
belt unit assembly removal" on page
Does the problem remain?
6
Check the printhead installation.
Is the printhead assembly installed properly with two
screws?
7 Check the printhead assembly installation.
Install the printhead assembly properly, and perform a
print test.
Does the problem remain?
2-140
Printer Service Manual
Check
"Transfer
4-16.
Yes
Go to step 2. Problem solved.
Problem solved. Replace any
empty toner
cartridges.
Go to step 4. Remove debris
or clean the
printhead
assembly
window.
Go to step 5. Replace the 2nd
transfer roll
assembly.
Go to
transfer roll
assembly
removal" on
page
Go to step 6. Problem solved.
Go to step 8. Go to step 7.
Go to step 8. Problem solved.
No
"2nd
4-35.