Abstract: A printing system holds a plurality of content data and linking information which links a printer and registration information of a user registered to an SNS. When a posting including content data identification information is performed to the SNS, the printing system judges the presence or absence of linking of the registration information of the user who has posted and the printer by referring to the linking information. When there is a printer linked to the registration information of the user who has posted, the printing system acquires content data identified by the identification information included in the posting from the content data holding unit, generates print data for printing an image from the content data, sends the print data to the printer linked to the registration information of the user who has performed the posting, and causes the printer to print the image based on the print data.

Abstract: A device system is configured to determine an access address for acquiring a control unit that controls the device according to property information of a mobile communication terminal, in response to a request from the mobile communication terminal connected to a network.

Abstract: A printing server includes a scan data receiving portion that receives, via the Internet, a set of scan data resulting from canning of a document; a storage server communication portion that transmits the set of scan data to a storage server that stores data therein in a state in which the data is ready for being downloaded by an external terminal; a printing data generation portion that, on the basis of the set of scan data, generates a set of printing data in accordance with which a printer performs printing; and a printer communication portion that transmits the set of printing data to a printer corresponding to a designated e-mail address.

Abstract: A printing system holds a plurality of content data and linking information which links a printer and registration information of a user registered to an SNS. When a posting including content data identification information is performed to the SNS, the printing system judges the presence or absence of linking of the registration information of the user who has posted and the printer by referring to the linking information. When there is a printer linked to the registration information of the user who has posted, the printing system acquires content data identified by the identification information included in the posting from the content data holding unit, generates print data for printing an image from the content data, sends the print data to the printer linked to the registration information of the user who has performed the posting, and causes the printer to print the image based on the print data.

Abstract: A device system is configured to determine an access address for acquiring a control unit that controls the device according to property information of a mobile communication terminal, in response to a request from the mobile communication terminal connected to a network.

Abstract: A method of reversible data compression is disclosed. The method is an improvement on the Lempel-Ziv data compression method that does not require a prefix for every noncompressed data unit in the encoded data stream. A code is inserted at the beginning of each string of consecutive noncompressed data bytes to indicate that the string is of noncompressed data and the number of bytes in the string. By eliminating the requirement for a separate prefix for each noncompressed data, a higher compression ratio is achieved over conventional Lempel-Ziv encoding methods.