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Lexmark XS654

Lexmark XS654

Unable to Send a Fax to a Legacy Fax Machine; Disabled 'Auto Convert Color Faxes to Mono Faxes' Will Prevent Successful Fax Transmittal

What you will see

A fax-send failure and an E-A00 error on the Fax Transmission Log or the Fax Send Log.

E-A00 explanation - Sending fax machine received request for unsupported function from remote fax device.

Additional Identifier for Advanced Users

Access the http://mfp_IP_address/SE, where


is the address of the device, and view the T30 log. Look for the presence of a DCN shortly after a DIS.

DCN - Disconnect

DIS - Digital identifier sent by the recipient fax machine to inform the sending device of its capabilities.

Suggested Fix

Re-enable theFax Auto Convert Color Faxes to Mono Faxes setting.

To do this:

  1. Access the MFP embedded web server or configuration page; e.g., http://


    , where


    is the address of the device.

  2. Click on Settings.

  3. Click on Fax Settings.

  4. Click on Analog Fax Setup.

  5. Under Fax Send Settings, place a check mark next to Auto Convert Color Faxes to Mono Faxes.

  6. Scroll down to the bottom of the page and click Submit.

  7. Attempt to resend the fax.

As an example, click here for an illustration of the X544 MFP Fax Setup page.


A recipient fax machine that does not support color faxes, and a disabled MFP setting which overrides this disability, prevent a successful fax transmittal.

Still Need Help?

If you require additional assistance, please contact Lexmark Technical Support.
When calling for phone support you will need your model/machine type and serial number(SN).

For improved technical support, all callers should be near the computer and the printer in case the technician on the phone asks you to perform a task involving one of the devices.


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