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Troubleshoot a problem
Action
Step 1
a
Remove the printhead wiper, and then clean the printhead lens.
b
Print the document.
Do vertical dark streaks with missing images appear on prints?
Step 2
a
Remove, and then insert the imaging unit.
Warning—Potential Damage: Do not expose the imaging unit
to direct light. 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.
b
Print the document.
Do vertical dark streaks with missing images appear on prints?
Step 3
a
Check if the printer is using a genuine and supported Lexmark
toner cartridge.
Note: If the toner cartridge is not supported, then install a
supported one.
b
Print the document.
Do vertical dark streaks with missing images appear on prints?
Repeating defects
Note: Before solving the problem, print the Print Quality Test Pages. From the home screen, touch Settings >
Troubleshooting > Print Quality Test Pages.
Yes
No
Go to step 2.
The problem is
solved.
Go to step 3.
The problem is
solved.
Contact
customer
The problem is
support.
solved.
356
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