Vertical White Lines - Lexmark CS921 User Manual

Troubleshooting
Action
Step 4
a
Clean the printhead lens.
b
Print the document.
Do vertical dark lines or streaks still appear on prints?
Step 5
a
Inspect the test pages to determine which color is affected.
b
Replace the photoconductor unit.
c
Print the document.
Do vertical dark lines or streaks still appear on prints?

Vertical white lines

Leading edge
Trailing edge
Note: Before solving the problem, print the print quality test pages. From the home screen, touch Settings >
Troubleshooting > Print Quality Test Pages.
Action
Step 1
a
Depending on your operating system, specify the paper type
and weight from the Printing Preferences or Print dialog.
Notes:
•
Make sure that the settings match the paper loaded in
the tray.
•
You can also change the settings on the printer control
panel.
b
Print the document.
Do vertical white lines still appear on prints?
Step 2
Check if you are using the recommended paper type.
a
Load the specified tray or feeder with the recommended paper
type.
b
Print the document.
Do vertical white lines still appear on prints?
Yes No
Go to step 5. The problem is
solved.
Contact customer The problem is
support. solved.
Yes No
Go to step 2. The problem is
solved.
Go to step 3. The problem is
solved.
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