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Troubleshoot a problem
Action
Step 1
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 lines or streaks appear on prints?
Step 2
a
Remove the printhead wiper, and then clean the printhead lens.
b
Print the document.
Do vertical dark lines or streaks appear on prints?
Step 3
a
Remove, and then insert the imaging unit.
Warning—Potential Damage: Do not expose the imaging unit
to direct light. Extended exposure to light can 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 lines or streaks appear on prints?
Step 4
a
Replace the imaging unit.
b
Print the document.
Do vertical dark lines or streaks appear on prints?
Vertical dark streaks with print missing
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.
Go to step 4.
The problem is
solved.
Contact
customer
The problem is
support.
solved.
355
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