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    • 6. 发明授权
    • Developing apparatus having improved developer distribution
    • 具有改进的显影剂分布的显影装置
    • US6122472A
    • 2000-09-19
    • US172277
    • 1998-10-14
    • Mineyuki SakoShinichi YoshimotoSuguru HamamichiYukihiko Okuno
    • Mineyuki SakoShinichi YoshimotoSuguru HamamichiYukihiko Okuno
    • G03G15/08
    • G03G15/0822G03G2215/0838
    • The present invention is to provide a developing apparatus having a supply screw and a recovery screw both of which are arranged vertically to circulate developer, wherein a component in a normal direction of pressure generated by the recovery screw is made larger than that of pressure generated by the supply screw. Thereby, lowering and raising of developer is suppressed and occurrence of fog on the image and the smoke of toner are prevented. Alternatively, a radial member and a centrifugal member are applied to the supply screw and the recovery screw, respectively. Thereby, developer is prevented from moving between screws in the midst of the transportation. Still alternatively, a preliminary stirring portion is provided on extension of a stirring screw at upperstream side. The preliminary stirring portion has a cylindrical body with inlets and outlets. Both inside and outside of the cylindrical body, screws are provided and inclines of screw blades are reversed to each other. Thereby, it enables the developing apparatus to transport the developer which is sufficiently stirred and charged to a development zone without being accompanied by a large-scaled apparatus.
    • 本发明提供一种具有供给螺杆和回收螺杆的显影装置,它们都垂直设置以使显影剂循环,其中由回收螺杆产生的沿正常压力方向的分量大于由 供应螺丝。 由此,抑制了显影剂的降低和升高,并且防止了图像上的灰雾和调色剂的烟雾。 或者,将径向构件和离心构件分别施加到供给螺钉和回收螺钉。 因此,防止了在运输中间的螺丝之间移动显影剂。 或者,在上游侧的搅拌螺杆的延伸部设置预备搅拌部。 初步搅拌部分具有带入口和出口的圆柱体。 圆柱体的内部和外部均设有螺钉,并且螺旋叶片的倾斜彼此相反。 由此,能够使显影装置将充分搅拌和充电的显影剂输送到显影区而不伴随大型装置。
    • 7. 发明授权
    • Developer mixing and transporting device
    • 显影剂混合输送装置
    • US5682584A
    • 1997-10-28
    • US505491
    • 1995-07-21
    • Yoshihiro HattoriYoshinobu HadaSuguru HamamichiShinichi Yoshimoto
    • Yoshihiro HattoriYoshinobu HadaSuguru HamamichiShinichi Yoshimoto
    • G03G15/08G03G15/06
    • G03G15/0822
    • A developer transporting device for electrophotographic copiers has a pair of walls, a rotating shaft supported between the pair of walls, a first transporting member provided on the rotating shaft, a rotating cylindrical screw concentrically sheathing the rotating shaft and having a second transporting member provided on an exterior surface thereof and apertures provided at both ends thereof, an inflow pipe mounted on one wall of the pair of walls and extending into one end of the cylindrical screw and provided with a developer inflow opening facing an aperture of the cylindrical screw, and an outflow pipe mounted on the other wall of the pair of walls and extending into the other end of the cylindrical screw and provided with a developer outflow opening facing an aperture of the cylindrical screw. Developer outside the cylindrical screw is transported from the outflow pipe to the inflow pipe by the second transporting member and developer in the cylindrical screw is transported from the inflow pipe to the outflow pipe by the first transporting member. Developer is thus circulated inside and outside the cylindrical screw in a manner to ensure proper mixing thereof. The cylindrical screw preferably includes interior and exterior surfaces which have different coefficients of friction for more effective transport of the developer.
    • 一种用于电子照相复印机的显影剂传送装置具有一对壁,一对支撑在一对壁之间的旋转轴,设置在旋转轴上的第一传送构件,同心地包围旋转轴的旋转圆柱形螺杆,并具有设置在其上的第二传送构件 其外表面和设置在其两端的孔,安装在一对壁的一个壁上并延伸到圆柱形螺杆的一端并设置有面向圆柱形螺杆的孔的显影剂流入开口的流入管, 流出管安装在一对壁的另一壁上并延伸到圆柱形螺杆的另一端并设置有面向圆柱形螺钉的孔的显影剂流出开口。 圆筒形螺杆外的显影剂通过第二传送构件从流出管输送到流入管,圆柱形螺杆中的显影剂通过第一传送构件从流入管传送到流出管。 因此,显影剂以圆柱形螺杆的内部和外部循环,以确保其适当的混合。 圆柱形螺杆优选地包括具有不同摩擦系数的内表面和外表面,用于更有效地运输显影剂。