Note: 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.
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.
Print the document.
Are fine lines not printed correctly?
Go to step 2.
The problem is solved.
Increase toner darkness.
From the control panel, navigate to:
Settings > Print > Quality > Toner Darkness
Contact customer support.
Check the printer jam recovery settings to print the jammed pages.
Are there vertical white lines or voids on your prints? Specify the correct paper setting and redistribute the toner in the imaging unit to resolve this print quality issue.