Lexmark CS921 - Vertical White Lines

Action Yes No
Step 4
a Clean the printhead lens.
b Print the document.
Do vertical dark lines or streaks still appear on prints?
Go to step 5. The problem is
solved.
Step 5
a Inspect the test pages to determine which color is aected.
b Replace the photoconductor unit.
c Print the document.
Do vertical dark lines or streaks still appear on prints?
Contact
customer
support.
The problem is
solved.
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 Yes No
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?
Go to step 2. The problem is
solved.
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?
Go to step 3. The problem is
solved.
Troubleshooting 117