To correct this problem, purchase a cartridge with the correct region that matches the printer region, or purchase a worldwide cartridge.
Worldwide or Undefined region
North America (United States, Canada)
European Economic Area, Western Europe, Nordic countries, Switzerland
Rest of Europe, Middle East, Africa
Australia, New Zealand
Note: To find the region settings of the printer and toner cartridge, print the print quality test pages. From the control panel, navigate to: Settings > Troubleshooting > Print Quality Test Pages.
Leaked toner and paper settings mismatch can cause mottled print and dots on print. Find out how you can prevent this printing issue from happening again.
Install a new toner cartridge when you continue to see faded prints.