Image Reading Apparatus, Image Reading Method and Image Forming Apparatus Therefor, That Ensure Guiding Reflected Light from Document Having High-Gloss Level to Light Receiving Portion
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United States of America Patent
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Apr 19, 2017
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Apr 19, 2016
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Abstract
An image reading apparatus reads an image on a document surface. The image reading apparatus includes a document-supporting unit, a light source, and an image reading unit. The document-supporting unit supports the document and transmits light. The light source, from a direction inclined with respect to a line perpendicular to the document surface, irradiates the document surface with an irradiation beam transmitted through the document-supporting unit. The image reading unit reads the image in accordance with light reflected from the document surface and thereby generates image data. The document-supporting unit enables varying degree that the irradiation beam scatters in passing through the document-supporting unit.
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