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:
Jul. 14, 2015
Filed:
Apr. 06, 2012
Hidetoshi Hanamoto, Mishima, JP;
Toshikazu Tsuchiya, Susono, JP;
Tsutomu Ishida, Suntou-gun, JP;
Shinji Hosoya, Naka-gun, JP;
Taku Fukita, Mishima, JP;
Hidehiro Ushiozu, Mishima, JP;
Hidetoshi Hanamoto, Mishima, JP;
Toshikazu Tsuchiya, Susono, JP;
Tsutomu Ishida, Suntou-gun, JP;
Shinji Hosoya, Naka-gun, JP;
Taku Fukita, Mishima, JP;
Hidehiro Ushiozu, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
When a stirring member that stirs developer in a developer containing portion rotates at high speed, toner flies and the detection accuracy of light transmission type toner remaining amount detection is degraded. A developing apparatus including a developer containing portion that contains developer, a stirring member that stirs the developer in the developer containing portion, and a partition member which is disposed to separate the developer containing portion from a space adjacent to the developer containing portion and which bends to block at least a part of a light path, which is formed in the space and used to detect an amount of the developer, when being pressed by the stirring member via the developer.