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Vertical dark lines or streaks
Action Yes No
Step 1
a From the control panel, navigate to:
Settings > Troubleshooting > Cleaning the scanner
b Print the document.
Do vertical dark lines or streaks appear on prints?
Go to step 3. Go to step 2.
Step 2
a Using a damp, soft, lint-free cloth, clean the scanner. For more
information, see
“Cleaning the scanner” on page 123.
b Copy the document using the ADF.
Do vertical dark lines or streaks appear on prints?
Contact
customer
support.
The problem is
solved.
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 lines or streaks appear on prints?
Go to step 4. The problem is
solved.
Step 4
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 can cause print quality problems.
Warning—Potential Damage: Do not touch the
photoconductor drum under the imaging unit. Doing so may
aect the quality of future print jobs.
b Print the document.
Do vertical dark lines or streaks appear on prints?
Go to step 5. The problem is
solved.
Troubleshooting 175
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