Image processing system, image processing apparatus, and image processing program product suited for transmitting and receiving data among a plurality of image processing apparatuses

摘要

In order to share user identification information among a plurality of MFPs without using a server, each of a plurality of MFPs forming an image processing system stores in a HDD registered user information which at least includes the user identification information for identifying a user, requests another MFP to transmit registered user information stored in the HDD provided in that MFP, receives the registered user information transmitted by that MFP according to the request made by a request portion, and stores in the HDD user data that at least includes the received registered user information.