Action Yes No
Step 1
a Turn o the printer, wait for 10 seconds, and then turn on the
printer.
b Decrease toner darkness.
From the control panel, navigate to:
Settings > Print > Quality > Toner Darkness
c Print the document.
Does gray background appear on prints?
Go to step 2. The problem is
solved.
Step 2
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.
Does gray background appear on prints?
Go to step 3. The problem is
solved.
Step 3
a Depending on your operating system, specify the paper type
from the Printing Preferences or Print dialog.
Notes:
• Make sure that the setting matches the paper loaded.
• You can also change the setting on the printer control
panel. Navigate to Settings > Paper > Tray Configuration
> Paper Size/Type.
b Print the document.
Does gray background appear on prints?
Contact your
dealer. The problem is
solved.
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 non‑touch‑screen printer models, press
to
navigate through the settings.
Troubleshooting 167
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