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SHEET ATTRIBUTION DETECTION SENSOR DEVICE, PAPER SHEET ATTRIBUTION DETECTION METHOD, AND IMAGE FORMING APPARATUS

  • US 20150029257A1
  • Filed: 07/21/2014
  • Published: 01/29/2015
  • Est. Priority Date: 07/26/2013
  • Status: Active Grant
First Claim
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1. A sheet attribution detection sensor device including:

  • a light emission element configured to emit incident light to a paper sheet;

    a first light receiving element configured to receive a specular reflection component of reflection light from the paper sheet of the incident light to specify a thickness of the paper sheet; and

    a second light receiving element configured to receive a diffuse reflection component of the reflection light to specify one of sheet surface roughness and paper sheet color.

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