Lexmark CX930 User Manual page 362

Troubleshoot a problem
Action
Step 2
a
Load paper from a fresh package.
Note: Paper absorbs moisture due to high humidity. Store
paper in its original wrapper until you use it.
b
Print the document.
Do vertical dark lines appear on prints?
Step 3
a
Remove the printhead wiper, and then clean the printhead
lenses.
b
Print the document.
Do horizontal dark lines appear on prints?
Step 4
a
Remove the photoconductor units.
Warning—Potential Damage: Do not expose the
photoconductor units to direct light. Extended exposure to
light may cause print quality problems.
Warning—Potential Damage: Do not touch the
photoconductor drums. Doing so may affect the quality of
future print jobs.
b
Insert the photoconductor units.
c
Print the document.
Do vertical dark lines appear on prints?
Horizontal white lines
Notes:
•
Before solving the problem, print the Print Quality Test Pages. From the home screen, touch Settings >
Troubleshooting > Print Quality Test Pages.
•
If horizontal white lines keep appearing on the prints, then see the "Repeating defects" topic.
Yes No
Go to step 3. The problem is
solved.
Go to step 4. The problem is
solved.
Contact customer The problem is
support. solved.
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