It is an object to provide a mechanism such that when a print service is received via the Internet, print orders are stocked into a center server and the user collectively requests the printing. There is provided means constructed in a manner such that when the print order is transmitted to a center server 120, in a client 100, an uploading instruction for allowing the print order to be transmitted to the center server 120 and managed without performing a printing process is inputted, the print order is uploaded to the center server 120 via the Internet, and thereafter, a print ordering request of one or more print orders which were designated by the user among the uploaded print orders and should be print-ordered is transmitted to the center server.