公开(公告)号：US4435494A

公开(公告)日：1984-03-06

申请号：US355255

申请日：1982-03-05

申请人： Ryuji Goto ,  Keitaro Yamashita ,  Koji Noguchi

发明人： Ryuji Goto ,  Keitaro Yamashita ,  Koji Noguchi

IPC分类号： G03G15/09 ,  G03G13/09

CPC分类号： G03G15/0907

摘要： A process for depositing magnetic toner material on electrostatic latent images formed on an image bearing surfaces includes the steps of conveying toner to the developing zone via a magnet roll having a shell and coaxial permanent magnet member rotating in the same directions. In the region of the developing zone, the toner is subjected to both an A.C. magnetic field and an applied A.C. electrical field so as to render the toner electroconductive. The A.C. electrical field has a peak voltage greater than the dark voltage of the latent image, but less than 3,200 volts, and a frequency greater than v/0.3 where v is the advancing speed of the image bearing surfaces in relation to the magnet roll.

摘要翻译： 用于在形成在图像承载表面上的静电潜像上沉积磁性调色剂材料的方法包括通过具有沿相同方向旋转的外壳和同轴永磁体构件的磁辊将调色剂输送到显影区的步骤。 在显影区域中，调色剂经受A.C.磁场和施加的交流电场，以使调色剂导电。 交流电场的峰值电压大于潜像的暗电压，但小于3,200伏，频率大于v / 0.3，其中v是图像承载面相对于磁辊的前进速度。

公开(公告)号：US4267248A

公开(公告)日：1981-05-12

申请号：US15545

申请日：1979-02-26

申请人： Keitaro Yamashita ,  Ryuji Goto

发明人： Keitaro Yamashita ,  Ryuji Goto

IPC分类号： G03G15/09 ,  G03G13/09

CPC分类号： G03G15/09

摘要： A magnet-brush development process in which the amount of developer powder supplied to a development zone is self-controllable by the rotation of a magnet roll. A permanent magnet member and the shell rotate at different speeds in the same direction in such a manner that developer powder, as a whole, is conveyed on the shell in the direction opposite to the rotation of the magnet roll from a doctor spacing of a developer vessel to an image-bearing material. By controlling the doctor spacing to be larger than the gap between the image-bearing material and the magnet roll, an accumulation of the developer powder occurs on the shell between the doctor spacing and the development zone and is kept to be substantially constant. At the accemulation, an understream of powder moves in the direction of roll-movement towards the powder supply.

摘要翻译： 一种磁刷显影方法，其中供给显影区的显影剂粉末的量可以通过磁辊的旋转自我控制。 永磁体构件和壳体以相同方向以不同的速度旋转，使得显影剂粉末作为整体在壳体上沿着与磁体辊的旋转相反的方向从显影剂的刮刀间隔传送 容器到图像承载材料。 通过将刮刀间距控制为大于图像承载材料和磁性辊之间的间隙，显影剂粉末的积累在医生间隔和显影区之间的壳体上发生并保持基本恒定。 在这种情况下，粉末的流动将朝向粉末供应的滚动方向移动。

公开(公告)号：US4309498A

公开(公告)日：1982-01-05

申请号：US62844

申请日：1979-08-01

申请人： Keitaro Yamashita ,  Ryuji Goto ,  Masumi Asanae

发明人： Keitaro Yamashita ,  Ryuji Goto ,  Masumi Asanae

IPC分类号： G03G15/09 ,  G03G13/09

CPC分类号： B82Y15/00 ,  G03G15/0914

摘要： A method of electrophotography in which an electrostatic latent image is formed on the surface of a material layer and a non-magnetic cylinder is provided to confront the surface of said material layer. A permanent magnet roll made up of a plurality of symmetrically arranged magnetic poles extends axially in said cylinder. A magnetic brush is formed by attracting a semiconducting or insulating magnetic toner onto the cylinder with the aid of a magnetic attraction force of the permanent magnet roll. The cylinder and permanent magnet roll are moved relative to each other to permit the magnetic brush to slide along the surface of the material layer thereby to allow the magnetic toner to adhere at predetermined position on the surface of said material layer, and a toner image is transferred onto a transferring member and is then subjected to fixing. The cylinder and the permanent magnet roll are rotated in the same direction so that the magnetic toner is moved in the same direction as that of said material layer at a speed less than 100 mm/sec irrespective of the speed of movement of the surface of said material layer at a development section.

摘要翻译： 提供了一种电子照相方法，其中在材料层和非磁性圆筒的表面上形成静电潜像以面对所述材料层的表面。 由多个对称布置的磁极组成的永久磁铁辊在所述气缸中轴向延伸。 通过借助于永久磁铁辊的磁吸引力将半导体或绝缘磁性调色剂吸引到圆筒上形成磁刷。 气缸和永磁体辊相对于彼此移动以允许磁刷沿着材料层的表面滑动，从而允许磁性调色剂粘附在所述材料层的表面上的预定位置，调色剂图像为 转移到转印构件上，然后进行固定。 气缸和永磁体辊沿相同方向旋转，使得磁性调色剂以与所述材料层相同的方向以小于100mm / sec的速度移动，而与所述材料层的表面的移动速度无关 材料层在开发部分。

公开(公告)号：US4263390A

公开(公告)日：1981-04-21

申请号：US5213

申请日：1979-01-22

申请人： Keitaro Yamashita ,  Ryuji Goto

发明人： Keitaro Yamashita ,  Ryuji Goto

IPC分类号： G03G15/09 ,  G03G21/00 ,  G03G21/10 ,  B05C11/10

CPC分类号： G03G21/0047 ,  G03G2221/0005

摘要： A device for removing residual toner from the surface of a photoreceptor after the transfer of a toner image from the photoreceptor surface to another surface comprises a fur brush for lightly sweeping residual toner particles on the surface of the photoreceptor to align the particles substantially in streaks along the sweeping direction and a magnetic roll for picking up the aligned toner particles by the magnetic attraction force of the magnetic roll. The fur brush is positioned adjacent to, and in a slight contact with, the surface of the photoreceptor. The magnetic roll is disposed adjacent to the surface of the photoreceptor and at the trailing side of the fur brush along the path of relative movement with the photoreceptor.

摘要翻译： 在将调色剂图像从感光体表面转印到另一表面之后，用于从感光体表面去除残留调色剂的装置包括用于在感光体表面上轻轻扫除残余调色剂颗粒的毛刷，以使颗粒基本上沿条纹 扫描方向和用于通过磁辊的磁吸引力拾取排列的调色剂颗粒的磁辊。 毛刷被定位成与感光体的表面相邻并稍微接触。 磁性辊沿着与感光体的相对运动的路径邻近感光体的表面和毛刷的后侧设置。

公开(公告)号：US4660505A

公开(公告)日：1987-04-28

申请号：US812983

申请日：1985-12-24

申请人： Ryuji Goto ,  Hiromi Kashiwagi ,  Keitaro Yamashita

发明人： Ryuji Goto ,  Hiromi Kashiwagi ,  Keitaro Yamashita

IPC分类号： G01N27/72 ,  G03G15/08 ,  G03G15/09 ,  G03G21/00 ,  B05C11/00

CPC分类号： G03G15/0853 ,  G03G15/0849

摘要： An apparatus for developing electrostatic latent images with a two-component developer consisting of carrier and toner, comprising (a) a developer container, (b) a magnetic roll provided in the container, comprising a permanent magnet and a non-magnetic sleeve, (c) a hopper mounted on the container for replenishing toner to the container, (d) a roller provided in the container near its wall on the opposite side to the magnetic roll for mixing the developer with the toner replenished from the hopper and stirring them, (e) a device having a detection surface for detecting the concentration of toner in the developer. The detection device is mounted on the wall of the container such that the detection surface is located near the mixing roller to ensure the developer to flow smoothly and stably between the mixing roller and the detection surface.

摘要翻译： 一种用载体和调色剂组成的双组分显影剂显影静电潜像的设备，包括（a）显影剂容器，（b）设置在容器中的磁性辊，包括永磁体和非磁性套筒（ c）安装在容器上的用于将调色剂补充到容器上的料斗，（d）设置在容器中靠近其与磁性辊相反侧的壁上的辊，用于将显影剂与从料斗补充的调色剂混合并搅拌， （e）具有用于检测显影剂中的调色剂浓度的检测表面的装置。 检测装置安装在容器的壁上，使得检测表面位于混合辊附近，以确保显影剂在混合辊和检测表面之间平稳且稳定地流动。

公开(公告)号：US5571987A

公开(公告)日：1996-11-05

申请号：US598624

申请日：1996-02-12

申请人： Ryuji Goto ,  Koji Noguchi

发明人： Ryuji Goto ,  Koji Noguchi

IPC分类号： G03G13/09 ,  G03G15/09

CPC分类号： G03G13/09 ,  G03G15/0921 ,  G03G2215/0609

摘要： A developing apparatus including a fixed permanent magnet member 4 having a plurality of magnetic poles on the surface and a non-magnetic cylindrical sleeve 5 which is rotated around the permanent magnet member 4 at a position opposing a movable image-bearing member 1 having an electrostatic latent image on the surface, to form a developing region Z; causing a developer 3 to be magnetically attracted onto a surface of the non-magnetic cylindrical sleeve 4, and rotating the non-magnetic cylindrical sleeve 4 to convey the developer 3 into the developing region Z, and developing the electrostatic latent image with the magnetic toner 3, the moving velocity of the developer 3 in the developing region Z being higher than the peripheral velocity of the non-magnetic cylindrical sleeve 5.

摘要翻译： 一种显影装置，包括在表面上具有多个磁极的固定永磁体部件4和非磁性圆柱形套筒5，其在与具有静电的可动图像承载部件1相对的位置处围绕永磁体部件4旋转 在表面上形成潜像，形成显影区域Z; 使得显影剂3被磁性地吸引到非磁性圆柱形套筒4的表面上，并且旋转非磁性圆柱形套筒4以将显影剂3输送到显影区域Z中，并且用磁性调色剂显影静电潜像 如图3所示，显影区域Z中的显影剂3的移动速度高于非磁性圆筒形套筒5的圆周速度。

公开(公告)号：US5790929A

公开(公告)日：1998-08-04

申请号：US778919

申请日：1997-01-06

申请人： Ryuji Goto ,  Koji Noguchi

发明人： Ryuji Goto ,  Koji Noguchi

IPC分类号： G03G13/09 ,  G03G15/08

CPC分类号： G03G13/09 ,  G03G2215/0609

摘要： A developing apparatus including a magnetic conveying means 4 comprising a non-magnetic metal sleeve 7, onto which a developer containing a magnetic toner and a magnetic carrier is attracted, a permanent magnet member 8 having a plurality of magnetic poles and stationary inside the sleeve 7; a casing 1a having a developer-containing portion 5 for receiving the magnetic conveying means 4 and a toner-containing portion 3 disposed adjacent to the developer-containing portion 5 for storing the magnetic toner; and a doctor blade 10 for regulating a thickness of the developer 11 on the sleeve 7, the sleeve 7 being rotated such that the magnetic toner is attracted onto a surface of an electrostatic image-bearing member 12, further comprising a downward partition 3a and an upward partition 3b between the developer-containing portion 5 and the toner-containing portion 3 in such a positional relation that the downward partition 3a is closer to the sleeve 7 than the upward partition 3b, a developer which has not passed through a gap between the doctor blade 10 and the sleeve 7 being mixed with a freshly supplied magnetic toner in a region R defined by the downward partition 3a, the upward partition 3b, the sleeve 7 and an inner wall of the casing 1a.

摘要翻译： 一种包括磁性输送装置4的显影装置，包括非磁性金属套筒7，含有磁性调色剂和磁性载体的显影剂被吸引到该磁性传送装置上，具有多个磁极并固定在套筒7内的永磁体部件8 ; 具有用于接收磁性传送装置4的显影剂容纳部分5和与容纳磁性调色剂的显影剂容纳部分5相邻的调色剂容纳部分3的外壳1a; 以及用于调节套筒7上的显影剂11的厚度的刮刀10，套筒7被旋转使得磁性调色剂被吸引到静电图像承载部件12的表面上，还包括向下分隔件3a和 位于显影剂容纳部分5和调色剂容纳部分3之间的向上分隔部3b处于向下分隔件3a比向上分隔部分3b更靠近套筒7的位置关系，没有通过 刮刀10和套筒7与由向下分隔件3a，向上分隔件3b，套筒7和壳体1a的内壁限定的区域R中的新供应的磁性调色剂混合。

公开(公告)号：US5484680A

公开(公告)日：1996-01-16

申请号：US390168

申请日：1995-02-17

申请人： Ryuji Goto ,  Koji Noguchi

发明人： Ryuji Goto ,  Koji Noguchi

IPC分类号： G03G13/09 ,  G03G15/09

CPC分类号： G03G15/0921 ,  G03G13/09 ,  G03G2215/0609

摘要： The developing method of the present invention is carried out by providing a developing means comprising a non-magnetic sleeve and a permanent magnet member stationary inside the non-magnetic sleeve at a position opposing an image-bearing member having an electrostatic latent image on the surface, thereby forming a developing region; causing a developer to be magnetically attracted onto a surface of the non-magnetic sleeve, the developer comprising magnetic toner consisting of a binder resin and magnetic powder and capable of being charged at a particular polarity and a magnetic carrier having a relatively large conductivity; and rotating the non-magnetic sleeve to convey the developer to the developing region, thereby developing the electrostatic latent image with the magnetic toner. The non-magnetic sleeve is rotated in the same direction as the image-bearing member in the developing region at a ratio of a surface moving velocity (V.sub.1) of the non-magnetic sleeve to a surface moving velocity (V.sub.2) of the image-bearing member (V.sub.1 /V.sub.2)=1.5-5.0. A center of a developing magnetic pole of the permanent magnet member is deviated by 2.degree.-12.degree. toward the downstream side from a line connecting the closest points of the non-magnetic sleeve and the image-bearing member.

摘要翻译： 本发明的显影方法是通过提供一种显影装置来实现的，该显影装置包括非磁性套筒和固定在非磁性套筒内部的永久磁铁件，该静电磁性件在与表面上具有静电潜像的图像承载部件相对的位置 从而形成显影区域; 导致显影剂被磁性地吸引到非磁性套筒的表面上，显影剂包括由粘合剂树脂和磁性粉末组成的能够以特定极性充电的磁性调色剂和具有较大导电性的磁性载体; 并且旋转非磁性套筒以将显影剂输送到显影区域，由此用磁性调色剂显影静电潜像。 非磁性套筒以非磁性套筒的表面移动速度（V1）与图像承载部件的表面移动速度（V2）的比率沿与显影区域中的图像承载部件相同的方向旋转， 轴承构件（V1 / V2）= 1.5-5.0。 永磁体的显影磁极的中心从连接非磁性套筒的最近点和图像承载部件的线向下游侧偏离2°-12°。

公开(公告)号：US5429900A

公开(公告)日：1995-07-04

申请号：US950900

申请日：1992-09-25

申请人： Masumi Asanae ,  Ryuji Goto ,  Akihiko Funakawa

发明人： Masumi Asanae ,  Ryuji Goto ,  Akihiko Funakawa

IPC分类号： G03G9/09 ,  G03G9/097 ,  G03G9/083

CPC分类号： G03G9/097 ,  G03G9/091 ,  G03G9/09783

摘要： A magnetic developer comprising magnetic toner particles each comprising a binder resin, magnetic powder and a first charge-controlling agent, and magnetic carrier particles in mixture, and further containing 0.05 to 1 part by weight of a second charge-controlling agent being provided on the outer surfaces of the magnetic toner particles on the basis of 100 parts by weight of the magnetic toner particles has better triboelectric characteristics and a highly stabilized image density in the continuous development.

摘要翻译： 一种磁性显影剂，其包含各自包含粘合剂树脂，磁性粉末和第一电荷控制剂的磁性调色剂颗粒和混合物中的磁性载体颗粒，并且还含有0.05至1重量份的第二电荷控制剂 基于100重量份的磁性调色剂颗粒的磁性调色剂颗粒的外表面在连续显影中具有更好的摩擦电特性和高度稳定的图像密度。