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.

Date of Patent:
Nov. 14, 2023

Filed:

Jul. 20, 2022
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Mizuki Ishimoto, Numazu, JP;

Norio Matsui, Mishima, JP;

Masafumi Monde, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/3559 (2014.01); G03G 15/00 (2006.01); G01N 21/47 (2006.01); G01N 21/359 (2014.01); G01N 21/31 (2006.01); G03G 15/01 (2006.01); G03G 15/02 (2006.01); G01N 21/86 (2006.01);
U.S. Cl.
CPC ...
G01N 21/3559 (2013.01); G01N 21/3151 (2013.01); G01N 21/359 (2013.01); G01N 21/4738 (2013.01); G03G 15/5029 (2013.01); G01N 2021/3155 (2013.01); G01N 2021/3181 (2013.01); G01N 2021/8663 (2013.01); G03G 15/0189 (2013.01); G03G 15/0216 (2013.01);
Abstract

A moisture detecting apparatus includes: a light emitting unit including a first light source configured to emit light having a first wavelength as a peak wavelength, and a second light source configured to emit light having a second wavelength as a peak wavelength; a detecting unit configured to detect a first detection value indicating an extent to which the light emitted from the first light source is transmitted through a recording material, and a second detection value indicating an extent to which the light emitted by the second light source is transmitted through the recording material, based on a light receiving result of a light receiving unit; and a determination unit configured to determine a value related to a moisture content of the recording material based on the first detection value and the second detection value.


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