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Lexmark CS728

Lexmark CS728

Unable to Authenticate Card Reader After Replacing Printer Controller Board

What you will see

The printer posts an "An error occurred while reading the card. Remove your card and try again. If this error continues, please contact your system administrator." message on the home screen.

NOTE: This happens only after replacing the printer controller board.


Step 1. Update the printer firmware to at least the latest release found on the Lexmark support site.

Step 2. Perform Erase Printer Memory by navigating through Settings > Device > Maintenance > Out of Service Erase > Sanitize all nonvolatile memory.

Step 3. Configure the printer. The above step is required in order for SCAC to work.

Still need help?

If you need additional assistance, please close this browser tab or go to the Lexmark support site, type your printer model and locate

Get in Touch with Lexmark! for contact information. NOTE: 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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