Invention Grant
- Patent Title: Development apparatus and image forming apparatus
- Patent Title (中): 显影装置和图像形成装置
-
Application No.: US12036444Application Date: 2008-02-25
-
Publication No.: US07792473B2Publication Date: 2010-09-07
- Inventor: Masahiro Sakai
- Applicant: Masahiro Sakai
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Nixon & Vanderhye, PC
- Priority: JP2007-047567 20070227
- Main IPC: G03G15/09
- IPC: G03G15/09

Abstract:
A development apparatus that performs development by forming a magnetic brush using a two-component developer is provided with a developer tank that stores developer; a developer bearing member provided with a development sleeve that carries the developer stored in the developer tank on the outer circumferential face and transports the developer to a development area where the electrostatic latent image on the image bearing carrier is developed, the development sleeve being provided with at least a main pole magnet in which a main pole is formed that faces the development area, and an interpole magnet in which an interpole is formed adjacent to the main pole on the downstream side in a developer transport direction; and a carrier recovery means in which a pushing/bending magnetic pole of the same polarity as the interpole is formed such that magnetic force lines of the interpole in the developer bearing member are pushed/bent to the inside of the developer tank.
Public/Granted literature
- US20080205941A1 DEVELOPMENT APPARATUS AND IMAGE FORMING APPARATUS Public/Granted day:2008-08-28
Information query