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. 12, 2013
Filed:
Jul. 06, 2010
Shuichi Akedo, Osaka, JP;
Shuichi Akedo, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka-Shi, JP;
Abstract
An anti-accumulation section is provided at a section where an inner surface of a developer container abuts a surface of a doctor blade on an upstream side of a rotation direction of a developing roller. An angle between a surface of the anti-accumulation section facing the developing roller and the surface of the doctor blade on the upstream side of the rotation direction of the developing roller is set to be larger than an angle between a circle concentric with a cross section of the developing roller perpendicular to an extending direction of the developing roller and the surface of the doctor blade on the upstream side of the rotation direction of the developing roller at the section where the surface of the anti-accumulation section facing the developing roller and the surface of the doctor blade on the upstream side of the rotation direction of the developing roller abut. This realizes, with a simple configuration, a developing device capable of forming images of high quality without nonuniform development.