| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that, for instance, if a user is about to go for catching a performance described in the publication of informational magazine or the like and the fixture of the performance is altered after the distribution of the informational magazine, the user may be unable to know the correct date and time of the performance and to catch the performance, or for knowing whether or not the alteration as above is made, the user has to confirm that with the distribution outlet or the like of the ticket inconveniently on every occasion. SOLUTION: An image processing device 10 read the image data printed on the publication to detect a book ID contained in the image data, and transmits the detected book ID from the image processing device 10 to a server A, which extracts the updated data of the publication on the basis of the book ID transmitted and transmits it to the image processing device 10.
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