公开(公告)号：US4571372A

公开(公告)日：1986-02-18

申请号：US602010

申请日：1984-04-19

申请人： Motoo Urawa ,  Masanori Takenouchi ,  Fumitaka Kan ,  Kohshi Suematsu ,  Eiichi Imai

发明人： Motoo Urawa ,  Masanori Takenouchi ,  Fumitaka Kan ,  Kohshi Suematsu ,  Eiichi Imai

IPC分类号： G03G13/09 ,  G03G9/08 ,  G03G13/06 ,  G03G15/09

CPC分类号： G03G13/09

摘要： A method for coating of a developer comprises using a device having a vessel for storing a non-magnetic developer and magnetic particles, a developer holding member which conveys with rotation the non-magnetic developer to a latent image bearing member, a regulating member positioned on the side of the outlet of the above vessel for feeding the non-magnetic developer and arranged on the developer holding member with a gap formed therebetween, and a magnetic pole arranged on the side opposite to the regulating member through the intermediary developer holding member for forming a magnetic brush with the magnetic particles on the upstream side of the regulating member on the developer outlet side of said vessel; andforming a thin layer of the non-magnetic developer on the developer holding member, said magnetic particles having a magnetization of 30 emu/g or higher in the external magnetic field of 5000 oersted.

摘要翻译： 用于涂覆显影剂的方法包括使用具有用于存储非磁性显影剂和磁性颗粒的容器的装置，将非磁性显影剂旋转而传送到潜像承载构件的显影剂保持构件，位于 上述容器的出口侧，用于供给非磁性显影剂并且布置在其上形成间隙的显影剂保持构件上，以及通过中间显影剂保持构件设置在与调节构件相对的一侧的磁极，用于形成 磁刷，其在所述容器的显影剂出口侧上的调节构件的上游侧具有磁性颗粒; 以及在所述显影剂保持部件上形成所述非磁性显影剂的薄层，所述磁性粒子在5000奥斯特的外部磁场中的磁化强度为30emu / g以上。