Patent 7496848 was granted and assigned to Konica on February, 2009 by the United States Patent and Trademark Office.
An image forming apparatus providing services for general users, capable of getting rid of trouble to collect use charges. The image forming apparatus has: a connector to which a portable communication terminal is connected; a communication section for controlling the portable communication terminal connected to the connector, and controlling communication with the portable communication terminal and a management apparatus; a reading section for reading authentication information out of the portable communication terminal; an inquiry request section for sending the authentication information to the management apparatus, and requesting the management apparatus to inquire the electronic prepaid information based on the authentication information; a receiving section for receiving the electronic prepaid information replied by the management apparatus through the communication section; and an image forming control section for controlling whether to perform image forming processing or not on the basis of the electronic prepaid information.