Lexmark CX833
Try one or more of the following:
Turn off the printer, and then unplug the power cord from the electrical outlet.
Make sure that the internal option is installed into the appropriate connector on the controller board.
Connect the power cord to the electrical outlet, and then turn on the printer.
Note: If necessary, manually add the internal option in the print driver to make it available for print jobs. For more information, see Adding available options in the print driver.
If the problem persists, then contact customer support.
Are you unable to send emails? Check the details of your SMTP server.
Here are basic troubleshooting steps if you cannot set up etherFAX in your printer.