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:
Mar. 27, 2007
Filed:
Sep. 21, 2004
Takashi Hatakeyama, Yokohama, JP;
Shoko Shimmura, Yokohama, JP;
Toshihiro Kasai, Yokohama, JP;
Minoru Yoshida, Machida, JP;
Takeshi Watanabe, Yokohama, JP;
Masashi Takahashi, Yokohama, JP;
Takashi Hatakeyama, Yokohama, JP;
Shoko Shimmura, Yokohama, JP;
Toshihiro Kasai, Yokohama, JP;
Minoru Yoshida, Machida, JP;
Takeshi Watanabe, Yokohama, JP;
Masashi Takahashi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
A CPU controls a shutter of a developing device so as to enable movement of a developer between a first chamber and a second chamber that store the developer. The CPU rotates a developing roller and mixers of the first and second chambers for a predetermined time T, and stirs and conveys the developer. Thereby, the developer is moved from the first chamber into the second chamber. The amount of movement of the developer is understandable from the rotational speed and shape of each mixer. Hence, the amount of developer, which is moved from the first chamber to the second chamber, is estimated in advance, and about half the developer in the first chamber is replaced.