Lexmark MX722
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.
Step 1
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.
Is the print mottled?
Go to step 2.
The problem is solved.
Step 2
Check the printer for leaked toner contamination.
Is the printer free of leaked toner?
Go to step 3.
Contact customer support.
Step 3
Check the status of the imaging unit. From the control panel, navigate to:
Status/Supplies > Supplies
Is the imaging unit near end of life?
Go to step 4.
Step 4
Replace the imaging unit.
Firmware FW22.1 (221.214) release notes for August 2023