| 摘要 |
<p>PURPOSE:To attain an accurate cutting of a photosensitive sheet and an accurate sensing of a remained number of sheets by a method wherein various information are written into the photosensitive sheet by an infrared ray absorption material for absorbing infrared rays without giving any influence to a formation of image. CONSTITUTION:A surface of a photosensitive sheet 2 is provided with linear markers 101 by infrared ray absorption material at a predetermined interval L for cutting a rolled photosensitive sheet at a desired length. The infrared ray absorption material may absorb only an infrared ray and the photosensitive sheet 2 has a sensitivity against a visual light only, so that it does not provide any influence against forming of an image. Bar codes 102 are disposed between the markers 101 and numbers indicating a remaining number of markers 101 are described by the infrared ray absorption material in the same manner as that of the marker. The markers 101 and the bar codes 102 are read by the infrared rays. With such an arrangement, it is possible to perform an accurate cutting of the photosensitive sheet and an accurate sensing of a remained number of sheets.</p> |
