Image reading apparatus and color erasing apparatus
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United States of America Patent
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Aug 4, 2015
Grant Date -
N/A
app pub date -
Mar 4, 2014
filing date -
Mar 4, 2014
priority date (Note) -
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Abstract
An image reading apparatus includes a first illumination section configured to obliquely illuminate a surface of a sheet in an image reading area, a second illumination section arranged upstream of the first image reading area and configured to obliquely illuminate the surface of the sheet in the image reading area, and a reading section configured to read the surface of the sheet illuminated in the image reading area. The apparatus can switch between a two-side illumination mode in which the image reading area is illuminated by both illumination sections, and a single-side illumination mode in which the image reading area is illuminated by only one illumination section. The apparatus further includes a determination section configured to determine the state of the surface of the sheet (e.g., rip or creases) based on image data corresponding to the surface read in the single-side illumination mode.
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