发明申请
US20080226355A1 DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMATION APPARATUS
审中-公开
开发装置，过程盒和图像形成装置
- 专利标题： DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMATION APPARATUS
- 专利标题（中）： 开发装置，过程盒和图像形成装置
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申请号： US12045936申请日： 2008-03-11
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公开(公告)号： US20080226355A1公开(公告)日： 2008-09-18
- 发明人: Kyohta KOETSUKA , Tadaaki Hattori , Yoshiyuki Takano , Noriyuki Kamiya , Masayuki Ohsawa , Mieko Terashima , Hiroya Abe , Takashi Innami
- 申请人： Kyohta KOETSUKA , Tadaaki Hattori , Yoshiyuki Takano , Noriyuki Kamiya , Masayuki Ohsawa , Mieko Terashima , Hiroya Abe , Takashi Innami
- 优先权： JP2007-066478 20070315
- 主分类号： G03G15/09
- IPC分类号： G03G15/09
摘要：
A development device includes a developer support body including a non-magnetic hollow body which contains a magnetic field generator and attracts a developer onto an outer surface by a magnetic force of the magnetic field generator, a magnetic member being disposed around the magnetic field generator and exerting a magnetic force on the magnetic field generator, and an anti-deflection magnetic field generator being provided around the hollow body and exerting a magnetic force on the magnetic field generator to prevent a deflection of the magnetic field generator by negating at least one of the magnetic force of the magnetic member and a gravitational force due to empty weight of the magnetic field generator.
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