发明申请
- 专利标题: DEVELOPING DEVICE, ASSEMBLY BODY, AND IMAGE FORMING APPARATUS
- 专利标题(中): 开发设备,装配体和图像形成装置
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申请号: US12875598申请日: 2010-09-03
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公开(公告)号: US20110222918A1公开(公告)日: 2011-09-15
- 发明人: Miho IKEDA , Makoto HIROTA , Jun ABE , Shota OBA , Takashi OCHI
- 申请人: Miho IKEDA , Makoto HIROTA , Jun ABE , Shota OBA , Takashi OCHI
- 申请人地址: JP Tokyo
- 专利权人: FUJI XEROX CO., LTD.
- 当前专利权人: FUJI XEROX CO., LTD.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2010-057687 20100315
- 主分类号: G03G15/09
- IPC分类号: G03G15/09
摘要:
A developing device includes: a first-developer-holding-member facing a surface of a rotating latent image carrier, it rotating such that a moving direction thereof is opposite to that of the carrier at a portion where they face; a second-developer-holding-member provided at a downstream-side of the first-developer-holding-member in a direction in which the carrier rotates, and facing the surface of the carrier, it rotating such that a moving direction thereof is the same as that of the carrier at a portion where they face; a ratio of circumferential speeds of the first-developer-holding-member and the second-developer-holding-member being variable; a splitting member that splits a developer for the first-developer-holding-member and the second-developer-holding-member by hitting against the developer located between the first-developer-holding-member and the second-developer-holding-member; a moving unit that moves the splitting member; and a control unit that controls the moving unit to move the splitting member to vary split ratio of the developer.
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