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Lexmark CS820

Lexmark CS820

Active Directory Authentication Breaks After Updating Printer Firmware


Updating the printer firmware from Firmware-3 (FW3) to Firmware-4 (FW4 version 040.086) breaks the Active Directory authentication,which could lock users out of the printer.

The FW4 version 040.086 was posted on the Lexmark support site for a short period before a newer version replaced it after a few weeks.


Updating the printer firmware to the latest version posted on the Lexmark support site will fix the issue. Should the issue persist, please contact Lexmark Technical Support for further assistance.

The Lexmark representative might ask for the printer's current firmware level. Please refer to xref_Check_xref for the steps. Once you obtain the file, you may proceed and update the firmware by following the steps from .

Contacting Lexmark

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:

  • Name and version of the solution
  • Affected printer model/s
  • Printer serial number

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


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