Abstract: An information-displaying system includes a server device, a printing device, and an information terminal device. The printing device includes a request-admitting part, a first generating part, and a first transmitting part. The server includes a first receiving part, a content determining part, a second generating part, a second transmitting part, and a second receiving part. The information terminal device includes a third receiving part, a display part, an operation-instructing part, and a third transmitting part. The second transmitting part is for transmitting generated link information to the information terminal device, and, in an instance in which a content transmission request regarding transmitted link information has been admitted from the information terminal device, for further transmitting content data to the information terminal device. The content data corresponds with a scope of the content to be displayed.

Abstract: To facilitate visual identification of a guidance image for setup work or maintenance work for a printer. A content delivery system comprises a server, a printer, and a mobile terminal.

Abstract: To generate and display a menu display in a printer so as to be adapted to the user. A server device connected so as to be capable of communication between a printing device and an information terminal device comprises a packet communication part for receiving user information designed to uniquely identify a user who operates a portable terminal; a network communication part for receiving printing-device information designed to uniquely identify a printer; a selectable-service determining part for extracting, based on the printing-device information thus received, services that can be executed by the printer, and determining, based on the user information, a service that can be selected by the user; and a menu-screen information creating part for generating, in a format that can be displayed by the printing device, menu information which includes the service thus determined; and transmits the menu information thus generated to the printer.