Image reading device, method of adjusting distance between document and light receiving sensor in the device, and distance adjustment program
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United States of America Patent
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Apr 2, 2019
Grant Date -
Jan 11, 2018
app pub date -
Jun 13, 2017
filing date -
Jul 6, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An image reading device includes: light receiving sensors configured to read an image of a document conveyed in a sub-scanning direction and be arranged with an interval in a main scanning direction; one pair of document conveying rollers configured to be provided in front and back of the light receiving sensors in a document conveying direction; a detection unit configured to detect an image overlap amount in an image overlap area and/or an image missing amount in an image missing area; an adjustment amount determination unit configured to determine an adjustment amount for adjusting a distance between the document and the light receiving sensors based on the image overlap amount and/or image missing amount detected; and a drive unit configured to adjust a distance between the document and the light receiving sensors by displacing one of the document conveying rollers and light receiving sensors according to the adjustment amount.
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