公开(公告)号：US20120269544A1

公开(公告)日：2012-10-25

申请号：US13430004

申请日：2012-03-26

申请人： Kiyonori TSUDA ,  Hideo YOSHIZAWA ,  Kohichi UTSUNOMIYA ,  Takuzi YONEDA ,  Yutaka TAKAHASHI ,  Emi KITA ,  Yuki OSHIKAWA

发明人： Kiyonori TSUDA ,  Hideo YOSHIZAWA ,  Kohichi UTSUNOMIYA ,  Takuzi YONEDA ,  Yutaka TAKAHASHI ,  Emi KITA ,  Yuki OSHIKAWA

IPC分类号： G03G21/18 ,  G03G15/08

CPC分类号： G03G15/0942

摘要： A development device includes a development casing, a developer bearer disposed facing a latent image bearer through an opening formed in the development casing, a magnetic field generator, a developer regulator disposed facing the developer bearer, a first seal member to cover a clearance between the latent image bearer and a rim of the development casing upstream from the opening, and a second seal member. The first seal member includes a first end portion fixed to the rim of the development casing and a second end portion in contact with the latent image bearer, and the second seal member includes a first end portion fixed to an inner face of the development casing farther from the latent image bearer than the first seal member, and a second end portion hanging to contact the developer carried on the developer bearer downstream from the developer regulator.

摘要翻译： 显影装置包括显影壳体，通过形成在显影壳体中的开口面向潜像载体设置的显影剂载体，磁场发生器，与显影剂载体相对设置的显影剂调节器，第一密封构件， 潜像承载体和开口壳体的边缘，以及第二密封构件。 第一密封构件包括固定到显影壳体的边缘的第一端部和与潜像载体接触的第二端部，并且第二密封构件包括固定到显影壳体的内表面的第一端部 从第一密封构件的潜像载体和与显影剂调节器下游显影剂载体接触的显影剂悬挂的第二端部。

公开(公告)号：US20080181670A1

公开(公告)日：2008-07-31

申请号：US12020172

申请日：2008-01-25

申请人： Kiyonori TSUDA ,  Koichi Kato ,  Yuki Oshikawa ,  Yasufumi Takahashi ,  Eriko Maruyama ,  Koichi Sakata ,  Hitoshi Ishibashi ,  Kentaroh Tomita ,  Mugijirou Uno ,  Keiko Matsumoto ,  Kohichi Utsunomiya

发明人： Kiyonori TSUDA ,  Koichi Kato ,  Yuki Oshikawa ,  Yasufumi Takahashi ,  Eriko Maruyama ,  Koichi Sakata ,  Hitoshi Ishibashi ,  Kentaroh Tomita ,  Mugijirou Uno ,  Keiko Matsumoto ,  Kohichi Utsunomiya

IPC分类号： G03G15/08

CPC分类号： G03G15/095 ,  G03G2215/0827 ,  G03G2215/0838

摘要： A developing device which can stably supply a developer to a latent image carrier by preventing the scattered developer from being discharged and thereby preventing the developer from being discharged despite that the amount of developer within the developing device does not increase, and an image forming apparatus using the developing device. A block member serving as a scattered developer discharge prevention member is provided so as to block a path through which the developer scattered as a result of a conveyance operation of a supply screw serving as a developer conveying member moves toward a developer discharge port. Accordingly, the scattered developer is prevented from reaching the developer discharge port and being discharged therefrom.

摘要翻译： 一种显影装置，其能够通过防止散射的显影剂的排出而稳定地将显影剂供应到潜像载体，从而防止显影剂排出，尽管显影装置内的显影剂的量不增加;以及图像形成装置，其使用 显影装置。 设置用作散开的显影剂排出部件的块部件，以阻挡作为用作显影剂传送部件的供给螺杆的输送操作而散发的显影剂朝向显影剂排出口移动的路径。 因此，防止散开的显影剂到达显影剂排出口并从中排出。

公开(公告)号：US20070264054A1

公开(公告)日：2007-11-15

申请号：US11612865

申请日：2006-12-19

申请人： Kiyonori TSUDA ,  Satoru YOSHIDA ,  Hiroya HIROSE

发明人： Kiyonori TSUDA ,  Satoru YOSHIDA ,  Hiroya HIROSE

IPC分类号： G03G15/06

CPC分类号： G03G15/0893 ,  G03G15/0877 ,  G03G2215/0822 ,  G03G2215/0838

摘要： A development apparatus comprises three developer conveyance paths with separate functions for the supply, recovery and agitation of a developer, in which a reduction in size of the apparatus can be achieved. An image forming apparatus comprises the development apparatus. By provision in a development region width α of a supply opening for delivering developer from the downstream end in the direction of conveyance of an agitation conveyance path to the upstream end in the direction of conveyance of a supply conveyance path and a surplus opening for delivering developer from the downstream end in the direction of conveyance of the supply conveyance path to the upstream end in the direction of conveyance of the agitation conveyance path, a space saving of the upper part of the development apparatus can be achieved and a space saving of the development apparatus as a whole can be achieved compared with a conventional development apparatus.

摘要翻译： 显影装置包括具有用于显影剂的供应，恢复和搅动的独立功能的三个显影剂输送路径，其中可以实现装置的尺寸的减小。 图像形成装置包括显影装置。 通过在供给输送路径的输送方向上的上游端的输送方向从向下游侧输送显影剂的供给口的供给开口的宽度α设置在供给输送路径的输送方向和用于输送显影剂的剩余开口 从供给输送路的输送方向的下游端到搅拌输送路的输送方向的上游端，可以实现显影装置的上部的节省空间，并且可以节省开发的空间 与传统的显影装置相比，可以实现整体的装置。