In one version of a system according to the present invention, an MFP device and a storage server are connected to each other via a network. A user authentication is performed to acquire user information. Job information associated with the user information is acquired from the storage server. When scanning or printing is interrupted, scan or print setting information set before the interruption, and optionally the image data scanned before the interruption, are acquired. The MFP device performs the scanning or printing based on the setting information acquired from the storage server at the time of restart.