Action Yes No
a Check if the printer is using a genuine and supported toner
cartridge.
Note: If the toner cartridge is not supported, then install a
supported one.
b Print the document.
Do vertical dark bands appear on prints?
Contact your
dealer. The problem is
solved.
Vertical dark lines or streaks
Note: Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to
Settings > Troubleshooting > Print Quality Test Pages. For non‑touch‑screen printer models, press
to
navigate through the settings.
Action Yes No
a Check if the printer is using a genuine and supported 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?
Contact your
dealer. The problem is
solved.
Vertical dark streaks with print missing
Contact your dealer.
Troubleshoot a problem 118
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