IMAGE FORMING DEVICE, COMMUNICATION SYSTEM, EXTERNAL DEVICE, COMMUNICATION METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an image forming device which can dispense with an inconvenient operation for setting such as paring (authentication).SOLUTION: An image forming device 1 comprises: a radio communication unit 16 which receives data from a portable phone 2; and a reader/writer 15 which transmits an address of the radio communication unit 16 to the portable phone 2. The portable phone 2 comprises: a contact/non-contact IC card 26 which receives the address; and a radio communication unit 27 which transmits image data to the radio communication unit 16 by using the address. When the portable phone 2 and the image forming device 1 perform intercommunication, the reader/writer 15 transmits the address of the radio communication unit 16 to the contact/non-contact IC card 26, then the radio communication unit 27 transmits data to the radio communication unit 16 by using the address.