To provide a mechanism for causing a printing apparatus in which a user
logged to display data printable by the user, there is provided a
printing control method in a printing control system in which the image
forming apparatus includes the steps of transmitting the input user
identification information to the printing control server, and displaying
the printing data information list received from the printing control
server, so that the printing data printable by the image forming
apparatus and the printing data not printable by the image forming
apparatus can be discriminated from each other.