Make sure you loaded the paper correctly.
For more information, see Loading Paper.
Ensure the printer is not connected to a PictBridge-enabled camera.
For more information, see Printing Photos From a PictBridge-Enabled Camera.
General Problems

Fax Problems

Make sure an active telephone line is connected to the fax connector ( -left side
connector) on the back of your printer.
Make sure that if you are using a DSL or ISDN line, you are using a digital line filter on
the telephone line connecting your wall jack to the wall.
For more information, see What if I Have a Digital Subscriber Line (DSL)?..
Make sure the power supply, telephone, and answering machine connections are
secure.
Make sure the fax number, country code, and date/time are set correctly.
Make sure the telephone line is not in use by another device such as a dial-up modem
internet service. If it is, wait until the other device is finished before sending your fax.
Make sure the original document is loaded correctly.
For more information see Loading Original Documents.
Make sure the memory is not full. Dial the receiving number first, and then scan your
original document one page at a time.
Make sure the speed dial is set correctly.
Make sure the printer detects the dial tone.
Make sure the paper is loaded correctly.
For more information, see Loading Paper.
Make sure the printer doesn't have a paper jam.
For more information, see Paper Problems.

Paper Problems

Make sure you loaded the paper correctly.
For more information, see Loading Paper.
Use only paper recommended for your printer.
For more information, see Print Media Guidelines for the Paper Input Tray.