Do you see an error message?

See Error messages and blinking lights.

Is the printer installed properly on your computer?

If you are not sure, uninstall the printer software and reinstall it. For help, see Uninstall the printer software and Install the printer software.

Has the printer been held or paused?

Make sure the printer is not held or paused.

Is the printer set as the default printer?

Make sure your printer is set as the default printer.