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    • 1. 发明授权
    • Developing apparatus, process cartridge and magnetic sealing member
    • 显影装置,处理盒和磁性密封件
    • US07761028B2
    • 2010-07-20
    • US11608355
    • 2006-12-08
    • Toru OgumaShinichi Nishida
    • Toru OgumaShinichi Nishida
    • G03G15/08
    • G03G15/0817G03G15/0898
    • A developing apparatus for an image forming apparatus includes a magnetic sealing member having an arcuate surface and having a magnetic property, and which is opposed to an outer surface of a developing roller with a gap therebetween and a projected surface having a magnetic property projected from an upstream end of the arcuate surface toward upstream with respect to a peripheral moving direction of the developing roller, and which is more remote from an outer surface of the developing roller than the arcuate surface; and a sheet for preventing the magnetic developer from leaking between the developing device frame and the developing roller. The sheet is mounted to an upstream end of a developing device frame with respect to the moving direction and contacted to the developing roller so as to cover at least a part of the projected surface.
    • 一种用于图像形成装置的显影装置包括具有弓形表面并具有磁性的磁性密封构件,并且与其间具有间隙的显影辊的外表面相对,并且具有从 相对于显影辊的周边移动方向,弧形表面的上游端朝向上游,并且比显示辊的外表面比弓形表面更远离显影辊的外表面; 以及用于防止磁性显影剂在显影装置框架和显影辊之间泄漏的片材。 片材相对于移动方向安装到显影装置框架的上游端并且与显影辊接触以覆盖投影表面的至少一部分。
    • 3. 发明申请
    • DEVELOPING APPARATUS, PROCESS CARTRIDGE AND MAGNETIC SEALING MEMBER
    • 开发设备,工艺盒和磁性密封件
    • US20080112723A1
    • 2008-05-15
    • US11608355
    • 2006-12-08
    • Toru OgumaShinichi Nishida
    • Toru OgumaShinichi Nishida
    • G03G15/08
    • G03G15/0817G03G15/0898
    • A developing apparatus for an image forming apparatus includes a developing roller for carrying a magnetic developer; a developing device frame, having an opening for exposing a part of the developing roller, for rotatably supporting the developing roller; a magnetic sealing member, mounted to the developing device frame at a longitudinal end portion, for sealing a gap between the developing device frame and the developing roller against leakage of the magnetic developer, wherein the magnetic sealing member includes an arcuate surface which has a magnetic property and which is opposed to an outer surface of the developing roller with a gap therebetween and a projected surface which has a magnetic property and which is projected from an upstream end of the arcuate surface toward upstream with respect to a peripheral moving direction of the developing roller and which is remoter from an outer surface of the developing roller than the arcuate surface; a sheet for preventing the magnetic developer from leaking through between the developing device frame and the developing roller, the sheet being mounted to an upstream end of the developing device frame with respect to the moving direction and contacted to the developing roller so as to cover at least a part of the projected surface.
    • 用于图像形成装置的显影装置包括:用于承载磁性显影剂的显影辊; 显影装置框架,具有用于暴露显影辊的一部分的开口,用于可旋转地支撑显影辊; 磁性密封构件,其在纵向端部处安装到显影装置框架,用于密封显影装置框架和显影辊之间的间隙,以防止磁性显影剂的泄漏,其中磁性密封构件包括具有磁性的弓形表面 并且与其间具有间隙的显影辊的外表面相对,并且具有磁性的突出表面相对于显影剂的周边移动方向从弧形表面的上游端向上游突出 并且从显影辊的外表面远离弧形表面; 用于防止磁性显影剂在显影装置框架和显影辊之间泄漏的片材,片材相对于移动方向安装到显影装置框架的上游端并与显影辊接触以覆盖在 至少部分投影面。