To provide a file system with high utility that manages and stores data without notifying a file job by storing automatically data during data processing for backing up the data so as to easily retrieve and use the processed data as required.
A copying machine 11 sends document data read from, e.g. and original image and to be processed together with additional data such as a user ID in response to a processing instruction such as provided copying function to a server device 12 via an intra-net, the server device 12 acquires the additional data such as a keyword, stores the document data to large capacity storage devices 13, 16, where the data are backed up and the other additional data and the storage address for each user ID are stored in a database in a hard disk unit 43 in a retrieval-enabling way.
HARADA TAKASHI
HANAI ATSUSHI
TAKAHASHI HIROSHI
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