Patent ID: 8191130

Claim:
A printing apparatus which is connected to a network to which an information processing apparatus configured to transmit printing data and an authentication information issuance server configured to issue authentication information to the information processing apparatus transmitting the printing data are connected, the printing apparatus comprising: a printing apparatus information output unit configured to output, in a case where setting of the printing apparatus has been changed to setting which requires the authentication information issued by the authentication information issuance server to perform a printing process based on the printing data transmitted by the information processing apparatus, printing apparatus information which includes information indicating that the authentication information is required and an address of the authentication information issuance server to the information processing apparatus; a receiving unit configured to receive the printing data to which the authentication information has been added; and a printing unit configured to perform the printing process based on the printing data received by the receiving unit, wherein the printing apparatus information output unit transmits information indicating a location where software corresponding to the authentication information issued by the authentication information issuance server exists or the software itself, when version error information is received from the information processing apparatus.