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Lexmark MX721 - Horizontal light bands

Lexmark MX721
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Horizontal 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 nontouchscreen 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 Turn o the printer, wait for about 10 seconds, and then turn on
the printer.
b Print the document.
Do horizontal light bands appear on prints?
Contact
customer
support.
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 nontouchscreen printer models, press
to
navigate through the settings.
Troubleshooting 236

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