Note:
Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to
Settings
>
Troubleshooting
>
Print Quality Test Pages
. For non
‑
touch
‑
screen printer models, press
to
navigate through the settings.
Action
Yes
No
Step 1
a
Check if the printer is using a genuine and supported Lexmark
toner cartridge.
Note:
If the cartridge is not supported, then install a
supported one.
b
Print the document.
Do horizontal light bands appear on prints?
Go to step 2.
The problem is
solved.
Step 2
a
Remove, and then insert the imaging unit.
Warning—Potential Damage:
Do not expose the imaging unit
to direct light for more than 10 minutes. Extended exposure
to light may cause print quality problems.
Warning—Potential Damage:
Do not touch the
photoconductor drum under the imaging unit. Doing so may
affect the quality of future print jobs.
b
Print the document.
Do horizontal light bands appear on prints?
Go to step 3.
The problem is
solved.
Step 3
a
Replace the imaging unit.
b
Print the document.
Do horizontal light bands appear on prints?
Contact
The problem is
solved.
Vertical light bands
Note:
Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to
Settings
>
Troubleshooting
>
Print Quality Test Pages
. For non
‑
touch
‑
screen printer models, press
to
navigate through the settings.
Troubleshoot a problem
105