Lexmark CS921 User Manual page 102

Troubleshooting
Action
Step 4
a
Inspect the test pages to determine which color is affected.
b
Remove, and then reinstall the photoconductor unit.
Warning—Potential Damage: Do not expose the
photoconductor unit to direct light for more than one minute.
Extended exposure to light may cause print quality problems.
Warning—Potential Damage: Do not touch the
photoconductor drum. Doing so may affect the quality of
future print jobs.
c
Print the document.
Do ghost images still appear on prints?
Gray or colored background
Leading edge
ABCDE
ABCDE
ABCDE
Trailing edge
Note: Before solving the problem, print the print quality test pages. From the home screen, touch Settings >
Troubleshooting > Print Quality Test Pages.
Action
Step 1
a
From the home screen, touch Settings > Print > Quality.
b
Adjust the toner darkness.
c
Print the document.
Does gray or colored background still appear on prints?
Step 2
a
From the home screen, touch Settings > Print > Quality >
Advanced Imaging > Color Adjust.
b
Start the process.
c
Print the document.
Does gray or colored background still appear on prints?
Step 3
a
Clean the printhead lens.
b
Print the document.
Does gray or colored background still appear on prints?
Yes No
Contact customer The problem is
support. solved.
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.
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