Printing service providing method and printing service providing system

A printing service providing method of a printing service providing system comprising a client terminal, a printing apparatus, a call control server, and a printing service management server connected to a network, the printing service providing method including:

• a step of transmitting a request message to the call control server by the client terminal, the request message including information specifying the printing apparatus;
• a transfer step of transferring the request message to the printing service management server by the call control server;
• a first authentication step of receiving the call request and carrying out authentication processing based on the call request by the call control server;
• a specification step wherein the printing service management server specifies identification of an organization to which a printing apparatus associated with identification of the printing apparatus stored in the device management database belongs,
• wherein in the first authentication step, the call control server checks whether identification information of the client terminal and identification information of the printing apparatus received together with the call request is registered in a database or not,
• a session ID is given if the server determines that both the identification information of the client terminal and identification information of the printing apparatus within the call request is registered in the database;
• a print request is sent from the Client terminal which includes a print data, the session ID;
• carries out a second authentication step including a second authentication processing by checking whether a user corresponding to identification of a user included in the call request belongs to an organization corresponding to identification of the organization to which the specified printing apparatus belongs by reading from the device management database, information of the organization to which the printing apparatus belongs based on the identification of the printing apparatus as a key,
• and specifying the printing apparatus;
• and a step of if a result of the authentication processing carried out in the authentication step is correct, establishing a session between the client terminal and the printing apparatus, and the printing service server by the call control server.

A printing service providing system comprising:

• a client terminal, a printing apparatus, a call control server, and a printing service management server connected to a network,
• wherein the client terminal comprises a transmitting unit transmitting a request message including information specifying the printing apparatus to the call control server;
• the call control server comprises a transfer unit transferring the request message to the printing service management server, the call control server establishing a session by generating a session ID, adding the session ID to the call request, and transferring the call request with the session ID to the printing service management server;
• and
• the printing service management server comprises an authentication unit carrying out a first authentication processing specifies identification of an organization to which a printing apparatus associated with identification of the printing apparatus stored in a device management database belongs,
• wherein in the first authentication step, the call control server checks whether identification information of the client terminal and identification information of the printing apparatus received together with the call request is registered in a database or not,
• a session ID is given if the server determines that both the identification information of the client terminal and identification information of the printing apparatus within the call request is registered in the database;
• a print request is sent from the client terminal which includes a print data, the session ID;
• carries out a second authentication processing by checking whether a user corresponding to identification of a user included in the call request belongs to an organization corresponding to identification of the organization to which the specified printing apparatus belongs by reading, from the device management database, information of the organization to which the printing apparatus belongs based on the identification of the printing apparatus as a key, and specifying the printing apparatus.