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.:
Date of Patent:
Dec. 15, 2020
Filed:
Dec. 27, 2017
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Yasuhiko Okuma, Abiko, JP;
Keisuke Nakano, Suntou-gun, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 21/20 (2006.01); G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
G03G 15/70 (2013.01); G03G 15/5029 (2013.01); G03G 15/55 (2013.01); G03G 15/2039 (2013.01); G03G 21/206 (2013.01); G03G 2215/00721 (2013.01);
Abstract
An emitter emits light such that the light crosses a conveyance path. A reflector reflects the light. A receiver receives reflected light. A determiner determines that a sheet is present on the basis of an amount of reflected light. A controller may increase a light amount of the light-emitting unit from a first light amount to a second light amount on the basis of a temperature of the light-emitting unit and a reflectance of the reflecting member. The controller may increase a receiving gain of the receiver from a first gain to a second gain on the basis of a reflectance of the reflecting member.