An image forming apparatus of the invention includes a radio communication unit that is capable of performing radio communication with an external terminal apparatus and a control unit that controls the radio communication unit. The image forming apparatus controls the radio communication unit to transmit, when a transmission signal from the terminal apparatus is received by the radio communication unit, a signal for requesting a security code to the terminal apparatus and transmit, when the security code from the terminal apparatus is received, individual information including network information of the image forming apparatus to the terminal apparatus. Consequently, the terminal apparatus can receive the network information transmitted from the image forming apparatus and perform setting for network connection using this network information received.