| 摘要 |
PROBLEM TO BE SOLVED: To provide a device capable of preventing the occurrence of a read malfunction to lead to image abnormality and shortening read time by changing the algorithm of the processings of the height detection and distortion correction, etc., of an object based on whether or not a pressing member is in a set state. SOLUTION: A CPU 27 computes the height data of an original from the output of an edge detection part 23, an original size from the output of an original size detection part 24 and the positions of a finger and a hand pressing the original from the output of a finger detection part 25, respectively. Then, from the data, the height of an original surface and the distortion correction coefficient of data images, etc., are calculated. Also, an original pressing unit detection part 46 detects that an original pressing unit 31 is mounted, based on signals from a detection means for detecting that the original pressing unit 31 is mounted and changes the algorithm of the processing by the CPU 27 corresponding to the presence/absence of mounting.
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