Try one or more of the following:
Turn off the printer.
Unplug the power cord from the electrical outlet.
Remove the indicated tray.
Insert the tray.
Connect the power cord to the electrical outlet.
Turn on the printer.
If the error occurs again, then:
Contact customer support.
Learn how to set up your printer to send faxes through a cable internet service.
Are you unable to print continuously? Check the paper guide and tray configuration settings.