Lexmark CS720 Series User Manual page 79

Troubleshooting
Action
Step 2
a
Remove, and then reinstall the imaging unit or imaging kit.
Warning—Potential Damage: Do not expose the imaging unit
or imaging kit to direct light for more than 10 minutes.
Extended exposure to light may cause print quality problems.
Warning—Potential Damage: To avoid damage, do not touch
the underside of the imaging unit or imaging kit.
b
Resend the print job.
Does gray background still appear on prints?
Horizontal dark lines
ABCDE
ABCDE
ABCDE
Note: If horizontal dark lines keep appearing on your prints, then see the "Repeating defects" topic.
Action
Step 1
a
Depending on your operating system, specify the tray or feeder
from the Printing Preferences or Print dialog.
b
Resend the print job.
Do horizontal dark lines still appear on prints?
Step 2
a
Depending on your operating system, specify the paper type
and weight from the Printing Preferences or from Print dialog.
Notes:
•
Make sure that the settings match the paper loaded in
the tray.
•
You can also change the settings on the printer control
panel.
b
Resend the print job.
Do horizontal dark lines 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.
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