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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9744785 B1

PDFFull Text
Date of Patent:
Aug. 29, 2017

Filed:

May. 03, 2016

Medium identification device, image forming apparatus, method of identifying medium, and computer program product

Applicants:

Suguru Yokozawa, Kanagawa, JP;

Nobuyuki Satoh, Kanagawa, JP;

Mamoru Yorimoto, Kanagawa, JP;

Kenji Morita, Tokyo, JP;

Masayuki Fujii, Kanagawa, JP;

Daisaku Horikawa, Kanagawa, JP;

Inventors:

Suguru Yokozawa, Kanagawa, JP;

Nobuyuki Satoh, Kanagawa, JP;

Mamoru Yorimoto, Kanagawa, JP;

Kenji Morita, Tokyo, JP;

Masayuki Fujii, Kanagawa, JP;

Daisaku Horikawa, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Julian Huffman

Int. Cl.
CPC ...
B41J 29/393 (2006.01); B41J 11/00 (2006.01); G03G 15/00 (2006.01); G01N 21/55 (2014.01); G01N 21/25 (2006.01); G01N 21/57 (2006.01);
U.S. Cl.
CPC ...
B41J 29/393 (2013.01); B41J 11/009 (2013.01); G01N 21/251 (2013.01); G01N 21/55 (2013.01); G03G 15/5029 (2013.01); G03G 15/5062 (2013.01); G01N 21/57 (2013.01); G01N 2021/556 (2013.01); G01N 2021/557 (2013.01); G01N 2201/12 (2013.01); G03G 15/6591 (2013.01);
Abstract

A medium identification device identifies a type of a recording medium used for image formation. The medium identification device includes: a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value.

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