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Lexmark MS811

Lexmark MS811

Lexmark MS71X, MS81X, MX71X, & MX81X ? How to Avoid Getting a 31.66 Error Upon Installing a New Toner Cartridge


Before installing a new toner cartridge or should you be setting up a new printer, it is highly recommended that you shake the toner cartridge before installing it, especially if it is a 45k-yield cartridge.

Doing so will help distribute the toner inside that might have become stuck or caked during its shipping, and thus you can eliminate any possible print quality issue in the future or a 31.66 error code.

How to properly shake the toner cartridge

Play the video below and watch the proper way of shaking the toner cartridge. It is recommended to follow the procedure three times.


  • You will need QuickTime to be able to play the video file. Click the button
    to download QuickTime now.
  • A pop up message might appear saying: QuickTime Player needs your permission to run. Click "Always run on this site.”
  • If the 31.66 error persists, please contact Lexmark Technical Support for additional troubleshooting suggestions.

Contacting Lexmark

If you require additional assistance, please close this window and locate

Get In Touch with Lexmark! for contact information.
When calling for support, you will need your printer model/machine type and serial number (SN). Should you need help locating these, .

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


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