How do I receive faxes automatically on the HP Officejet 4650?

By default, the printer automatically answers incoming calls and receives faxes. Make sure the printer is turned on and paper is loaded. From the Home screen on the control panel display, touch Fax, touch Setup, and then touch Preferences. Turn the Auto Answer option on. The printer will answer calls after the number of rings specified in the Rings to Answer setting. Note that if an answering machine is connected, the Rings to Answer setting must be set to a higher number than the answering machine.