Open a Web browser, and then type the printer IP address in the address field.
Click Settings > Reports > Fax.
Click Fax Job Log or Fax Call Log.
Here are troubleshooting steps when unable to 'Send' a fax with Laser Multifunction Printers (MFPs).
FTP Scan Log Is Printed Even when Fax Transmission Log Is Set to 'Do Not Print Log' on the Lexmark CX72x and XC41xx