| 摘要 |
<P>PROBLEM TO BE SOLVED: To display the frame feed of a behavior of a sheet-like object by delaying image pick-up timing by a specific rotational phase at each image pickup of the sheet-like object, and to display the image in time series. Ž<P>SOLUTION: This device for monitoring the behavior of the sheet-like object of a sheet-like object processor is provided with a folding machine processing the sheet-like object, and a camera picking up an image one time for each signature Wb folded by the folding machine. For each image pickup, the camera picks up the image at the rotational phase of the signature Wb different from that of the last image pickup. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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