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. 24, 2009
Filed:
Jan. 22, 2007
Naoya Iwata, Ebina, JP;
Tomoyoshi Chihara, Ebina, JP;
Tetsuji Okamoto, Ebina, JP;
Akihide Kawamura, Ebina, JP;
Naoya Iwata, Ebina, JP;
Tomoyoshi Chihara, Ebina, JP;
Tetsuji Okamoto, Ebina, JP;
Akihide Kawamura, Ebina, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A developing unit which includes a conveying shaft; a developing conveying portion conveying a developer in an axial direction as the conveying shaft rotates; a discharge opening discharging the developer from the inner wall surface; an accumulating chamber accumulating the discharged developer; and an opening/closing member opening and closing the discharge opening due to its own weight as the rotating body rotates, and being in an open state at the developing position, an opening/closing fulcrum of the opening/closing member being at a lower end portion of the opening/closing member at the developing position, the developing unit being held at a rotating body, and successively being made to oppose a developing position of an image carrier due to rotation of the rotating body.