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11. 发明授权

US06334038B1 Electrophotograph development apparatus using magnetic developer 有权
标题翻译：使用磁性显影剂的电子照相显影装置
公开(公告)号：US06334038B1
公开(公告)日：2001-12-25
申请号：US09667699
申请日：2000-09-22
申请人： Ichiro Kawahara
发明人： Ichiro Kawahara
IPC分类号： G03G1508
CPC分类号： G03G15/09 , G03G15/0928
摘要： An electrophotograph development apparatus for developing an electrostatic latent image formed on an electrostatic latent image carrier body with magnetic developer includes a developer carrier body having a magnetic roller, and a thin layer forming member for forming the magnetic developer on the developer carrier body into a thin layer. A magnetic pole of the magnetic roller is disposed at a position of a &thgr; degree in an upper stream side relative to a rotational direction of the developer carrier body from a contact point of the thin film forming member and the developer carrier body, and &thgr; is in a range of 0 degree≦&thgr;≦10 degree. A relation between a surface roughness Rz′ of the developer carrier body and a surface roughness Rz of the thin layer forming member is represented by −10 &mgr;m≦(Rz-Rz′)≦5 &mgr;m.
摘要翻译：用于用静电潜像显影器形成在静电潜像载体上的静电潜像的电子照相显影装置包括具有磁性辊的显影剂载体和用于将显影剂载体上形成磁性显影剂的薄层形成部件，层。磁性辊的磁极从薄膜形成构件和显影剂载体的接触点相对于显影剂载体的旋转方向设置在上游侧的θ度的位置，θ是在0度<=θ<= 10度的范围内。显影剂载体的表面粗糙度Rz'与薄层形成部件的表面粗糙度Rz之间的关系由-10μm（= Rz-Rz'）<=5μm表示。

12. 发明授权

US5953557A Image forming apparatus with controlled toner charging voltage 有权
标题翻译：具有受控调色剂充电电压的图像形成装置
公开(公告)号：US5953557A
公开(公告)日：1999-09-14
申请号：US199683
申请日：1998-11-25
申请人： Ichiro Kawahara
发明人： Ichiro Kawahara
IPC分类号： G03G15/08
CPC分类号： G03G15/0812
摘要： An image forming apparatus can effectively restrict a phenomenon to lower a charge amount of toner on a developing roller according to increasing of number of printing to stabilize supply of toner for a latent image carrier body and whereby to maintain good printing condition for a long period. The image forming apparatus includes a latent image carrier body, a developing roller supplying a toner to a latent image formed on the latent image carrier body, a toner supply roller supply the toner contacting the developing roller, a thin film forming member restricting a toner amount and a toner charge amount on the developing roller contacting with the developing roller, and power source means for supplying a bias to the toner supply roller and the thin film forming member in such a manner that a relationship between a voltage Vsr and a current Isr satisfies .vertline.Vsr.vertline./a+.vertline.Isr.vertline./b=1 (where a and b are constants of power source characteristics).
摘要翻译：图像形成装置可以有效地限制根据印刷次数的增加来降低显影辊上的调色剂的电荷量的现象，从而稳定潜像载体主体的调色剂的供给，从而长时间保持良好的打印条件。图像形成装置包括潜像载体主体，向潜像载体上形成的潜像供给调色剂的显影辊，供给与显影辊接触的调色剂的调色剂供给辊，限制调色剂量的薄膜形成部件以及与显影辊接触的显影辊上的调色剂带电量，以及用于以使电压Vsr与电流Isr之间的关系满足的方式向调色剂供应辊和薄膜形成部件提供偏压的电源装置 | Vsr | / a + | Isr | / b = 1（其中a和b是电源特性的常数）。

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