When a user desires to periodically subscript a certain Web page (to automatically print the Web page), the user makes access to a sign-up page of the desired Web page by using a PC, via a facsimile machine. When the user clicks an “OK” button on the sign-up page, a setting request is transmitted to a Web server through the facsimile machine. In response to the setting request, the Web server sends back a data packet including an HTML document with a comment tag including periodical subscription setting data, as a response to the user. The transmitted periodical subscription setting data is received by the facsimile machine. When receiving the response, the facsimile machine determines whether a receiver's IP address and port number included in the data packet have been registered in the facsimile machine. When the IP address and port number are included, the facsimile machine extracts the periodical subscription setting data from the data packet and the setting of periodical subscription is performed therein based on the periodical subscription setting data.