An access information setting system includes: a data reception device; a data transmission device that transmits data to the data reception device via a network; and a writing device that writes access information for accessing to the data reception device via the network, in a storing medium. The data transmission device obtains the access information written in the storing medium, and sets a network setting for accessing to the data reception device in accordance with the access information as one network setting which can be used by the data transmission device.