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Lexmark MC2640

Lexmark MC2640

Print Quality Defect - Milky or Runny Prints when Printing on Card Stock

Affected products

Click Properties in the title section above.

Issue description

The printed image appears with some faded parts on top of the page. This is usually seen when printing on a 110 lbs. card stock and is primarily visible as a gloss if viewed at an angle. This print quality defect is referred to as a milky print or runny print.

Sample printouts


This issue occurs when the toner is too close to the transfer belt as it enters the fuser, causing the toner to melt before pressure is applied to the media. This in turn leads to the toner running down the page and exposing the color of the underlying media to produce a milky or runny appearance.


1Check the paper settings and make sure it matches the media loaded in the paper tray.
2Try a fresh ream of paper and insert it into the paper tray.

If the issue persists, navigate to:

Settings > Paper > Media Configuration > Media Type > select Card Stock.

4Change the Weight to Light, and then tap Submit.

Still need help?

If you need additional assistance, please go to the Lexmark support site, type your printer model and locate

Get in Touch with Lexmark! for contact information.
When calling for support, you will need the following:

  • Printer model
  • Printer serial number
  • Toner/imaging unit/waste toner bottle part number and serial number (for supply-related issues)

Please be near the product/s described in this article to expedite the support process and reduce callbacks.


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