Action Yes No
a Open the front door, and then
firmly
push it down.
b Pull out the print cartridge tray.
c Remove, and then insert the print cartridges.
d Insert the print cartridge tray, and then close the door.
e Print the document.
Is the print density uneven?
Contact
customer
support.
The problem is
solved.
Horizontal dark 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 dark lines keep appearing on the prints, then see the “Repeating defects” topic.
Action Yes No
Step 1
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 dark lines appear on prints?
Go to step 2. The problem is
solved.
Troubleshoot a problem 183
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