Patent ID: 7619766

Claim:
An image forming device, comprising: a data receiving unit for receiving printing data and first identification information through a network; a data storage unit for storing the printing data and the first identification information such that the printing data correspond to the first identification information; a non-contact medium information obtaining unit for sending a call request externally to determine whether a non-contact medium is located within a specific range from the image forming device, requesting the non-contact medium to send second identification information stored in a memory of the non-contact medium when the non-contact medium is located within the specific range and the non-contact medium information obtaining unit receives a response call from the non-contact medium in a state of waiting for the response call from the non-contact medium, and obtaining the second identification information stored in the memory of the non-contact medium; a print control unit for controlling a printing process of forming an image according to the printing data; an information comparison unit for comparing the first identification information stored in the data storage unit with the second identification information obtained by the non-contact medium information obtaining unit when the non-contact medium information obtaining unit receives the second identification information; and a data control unit for retrieving the printing data corresponding to the first identification information from the data storage unit so that the printing data become printable when the information comparison unit determines that the first identification information matches to the second identification information.