Lexmark MX931 - Page 341

Action Yes No
Step 2
a Check if the printer is using a genuine and supported Lexmark
toner cartridge.
Note: If the cartridge is not supported, then install a
supported one.
b Print the document.
Do vertical light bands appear on prints?
Go to step 3. The problem is
solved.
Step 3
a Check the status of the toner cartridge.
From the home screen, touch Settings > Reports > Device >
Device Statistics.
b From the Supply Information section of the pages printed,
check the status of the toner cartridge.
Do vertical light bands appear on prints?
Go to step 4. The problem is
solved.
Step 4
a Replace the toner cartridge.
b Print the document.
Do vertical light bands appear on prints?
Contact
customer
support.
The problem is
solved.
Vertical white lines
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 Check if the printer is using a genuine and supported Lexmark
toner cartridge.
Note: If the cartridge is not supported, then install a
supported one.
b Print the document.
Do vertical white lines appear on prints?
Go to step 2. The problem is
solved.
Troubleshoot a problem 341