Image reading apparatus and an image processing system including an image sensor and a reference plate on the conveyance path for detecting the thickness of a medium

US8995027B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8995027-B2
Application numberUS-201313916456-A
CountryUS
Kind codeB2
Filing dateJun 12, 2013
Priority dateSep 14, 2012
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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An image reading apparatus including a first image unit fixed on one side of a conveyance path, a second image unit provided on the other side of the conveyance path and facing the first image unit, a guide at the second image unit and that contacts a medium to move the second image unit in a direction away from the conveyance path, an image sensor at one of the first image unit and the second image unit, a reference plate at the other one of the first image unit and the second image unit, and a thickness detection unit for detecting a thickness of the medium on the basis of an image signal output by the image sensor that captures an image of the reference plate with the medium inserted between the first image unit and the second image unit.

First claim

Opening claim text (preview).

What is claimed is: 1. An image reading apparatus comprising: a first image unit fixed on one side of a conveyance path of a sheet medium; a second image unit provided on the other side of the conveyance path and facing the first unit; a guide unit that is provided at the second image unit and contacting the medium inserted into a gap between the first image unit and the second image unit to move the second image unit in a direction away from the conveyance path; an image se…

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What does patent US8995027B2 cover?
An image reading apparatus including a first image unit fixed on one side of a conveyance path, a second image unit provided on the other side of the conveyance path and facing the first image unit, a guide at the second image unit and that contacts a medium to move the second image unit in a direction away from the conveyance path, an image sensor at one of the first image unit and the second …
Who is the assignee on this patent?
Pfu Ltd
What technology area does this patent fall under?
Primary CPC classification H04N1/00034. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).