Lighter than expected output with:
Use the on-line authentication tool to verify whether you have a Genuine Lexmark cartridge.
Please contact your point of purchase for a possible refund or to demand a genuine replacement cartridge.
Increase toner darkness.
From the home screen, Click the menu button (C79x/X79x and MS/MX81x) then navigate to: Settings > Print Settings > Quality Menu > Toner Darkness.
Adjust to desired setting, and then touch Submit.
Open a web browser and enter the printer's IP address.
Click Settings > Print Settings > Quality Menu.
Adjust the toner darkness to a darker setting, and click Submit.
Lower the print resolution to 600 dpi if it is currently set to 1200 dpi (1200 dots per inch) can cause fine fill-lines to not appear or to appear faint and not clear or crisp.
From the home screen, Click the menu button (C79x/X79x and MS/MX81x) then navigate to: Settings > Print Settings > Quality Menu > Print Resolution.
Open a web browser and enter the printer's IP address into the address field.
Set print resolution to 600 dpi, and click Submit.
Darkness variation caused by installing new supplies.
Note: For more information, see “Replacing supplies” section of the printer's User’s Guide.
Darkness variation caused by external conditions. It may occur due to environmental conditions. This can be witnessed by fading from left-to-right in hot or cold conditions.
Note: For more information, see "Temperature information" section of the printer's User's Guide.
LEGACY ID: TE548
Print Quality Defect ‑ Compressed Print
Partial or Misaligned Print Output on the Lexmark MS/MX31x/41x/51x/61x/71x/81x