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Action Yes No
Step 4
a Check if a bright light enters the right side of the printer, and
move the printer if necessary.
b Print the document.
Do vertical dark bands appear on prints?
Contact
customer
support.
The problem is
solved.
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 161.
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.
Troubleshooting 215
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