Image forming apparatus communicating with external device through network, network system, method of controlling image forming apparatus, program, and storage medium

摘要

An image forming apparatus (101) configured to communicate with an authentication apparatus (102) through a network, the image forming apparatus (101) including: an acquisition means configured to acquire a user ID through the network; a transmission means configured, when the user ID is acquired by the acquisition means, to transmit an authentication request including a user ID to the authentication apparatus (102) through the network; and a control means(201,302) configured to allow the user to log in to the image forming apparatus (101) according to an authentication result in response to the transmitted authentication request.