Action Yes No
Step 4
a Load paper from a fresh package.
Note: Paper absorbs moisture due to high humidity. Store
paper in its original wrapper until you use it.
b Print the document.
Do vertical dark lines or streaks appear on prints?
Contact your dealer. The problem is
solved.
Horizontal white lines
Notes:
• 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.
• If horizontal white lines keep appearing on your prints, then see the “Repeating defects” topic.
Action Yes No
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.
Do horizontal white lines appear on prints?
Contact your
dealer. The problem is
solved.
Troubleshooting 168
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