An apparatus, a system, and a method of processing a printing operation on a home network that searches an available media storage device upon a request of a printing job of predetermined contents, transmits an address of the searched media storage device, and prints printing contents transmitted to the address are provided. The apparatus for processing a printing function on a home network includes a printing request management unit which processes a printing request transmitted from a printing controller on a home network; a media storage device processing unit which provides information on an available media storage device on the home network when printing job information is transmitted from the printing request management unit; and a printing management unit which downloads predetermined contents stored in the media storage device, and performs a printing job according to the printing request of the printing controller.