Sheet transfer apparatus having a light volume detection means for detecting a deviation amount of a sheet and image reading apparatus having the sheet transfer apparatus

Sheet transfer apparatus having a light volume detection means for detecting a deviation amount of a sheet and image reading apparatus having the sheet transfer apparatus

The present invention comprises a light volume detection means for detecting the light volume according to the deviation amount at a sheet transfer position in the width direction of a sheet end to be transferred, the light volume detection mean being constituted by a light emitting element and a li...

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Hauptverfasser: Sano, Kazuhide, Hirose, Shunichi
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creator Sano, Kazuhide
Hirose, Shunichi
description The present invention comprises a light volume detection means for detecting the light volume according to the deviation amount at a sheet transfer position in the width direction of a sheet end to be transferred, the light volume detection mean being constituted by a light emitting element and a light receiving element having a light receiving surface of a prescribed length in the width direction of the sheet, and at least either said light receiving element or the light emitting element can be moved to a position in the sheet width direction according to the size of the sheet placed on the feed tray. Therefore, even if the size of the sheet transferred by the transfer means is different, the light volume detection means is able to detect the light volume at an adequate position according to the size of the sheet, the detection accuracy of the position deviation amount is enhanced with respect to the sheet different in size, and the accurate deviation amount can be detected.
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Therefore, even if the size of the sheet transferred by the transfer means is different, the light volume detection means is able to detect the light volume at an adequate position according to the size of the sheet, the detection accuracy of the position deviation amount is enhanced with respect to the sheet different in size, and the accurate deviation amount can be detected.</abstract><oa>free_for_read</oa></addata></record>
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title Sheet transfer apparatus having a light volume detection means for detecting a deviation amount of a sheet and image reading apparatus having the sheet transfer apparatus
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