| 摘要 |
In order to able to shorten the transporting time of the image information carrier as much as possible when the processing of magnetic information and the reading of an image are performed during the same transporting movement, an image reading device which transports an elongated image information carrier on which a plurality of image frames are recorded and which is provided with a magnetic recording layer on which is recorded magnetic information, and which reads image information of each image frame, comprising a linear scanner which performs a prescan for preliminarily reading image information of each image frame and which performs a fine scan for reading image information of each image frame under reading condition set on the basis of image information obtained in the prescan, a magnetic information reading and writing section which reads magnetic information on the magnetic recording layer during the prescan and writes magnetic information during the fine scan, and transporting section which transports the image information carrier during the prescan along a transporting path at a constant speed and which, for each image frame, transports the image information carrier during the fine scan along the transporting path at a speed set for each image frame in accordance with the reading condition and transports the image information carrier in a reverse direction of a transporting direction of the fine scan by a predetermined amount, wherein the writing of the magnetic information of each image frame is performed after the transporting speed of the image information carrier has converged to within a predetermined range with regard to the transporting speed for fine scanning set for each image frame, is provided.
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