公开(公告)号：US4950570A

公开(公告)日：1990-08-21

申请号：US276476

申请日：1988-11-28

申请人： Yumiko Sano ,  Kazuhito Takaoka ,  Yosinobu Umetani

发明人： Yumiko Sano ,  Kazuhito Takaoka ,  Yosinobu Umetani

IPC分类号： G03G9/09 ,  G03G9/10 ,  G03G9/107 ,  G03G15/34

CPC分类号： G03G9/107 ,  G03G15/344 ,  G03G9/0926 ,  G03G9/10 ,  Y10S430/101

摘要： Disclosed in an image-forming process which comprises arranging two electrode surfaces, at least one having a curvature face and at least the other being transparent, to confront each other, forming a layer of a photosensitive toner on one of the electrode surfaces, applying a bias voltage so that the polarity of the toner layer-supporting electrode surface is the same as the polarity of charges on the toner and the polarity of the confronting electrode surface is reverse to the polarity of charges on the toner, irradiating the toner layer with light at a part where both the electrode surfaces are contacted with each other through the photosensitive toner layer, and transferring the unexposed toner toward the confronting electrode surface.

摘要翻译： 公开了一种图像形成方法，其包括布置两个电极表面，至少一个具有曲面并且至少另一个是透明的，以彼此面对，在一个电极表面上形成感光调色剂层， 使得调色剂层支撑电极表面的极性与调色剂上的电荷的极性相同，并且相对电极表面的极性与调色剂上的电荷的极性相反，用光照射调色剂层 在两个电极表面通过感光调色剂层彼此接触的部分，并且将未曝光的调色剂转移到面对的电极表面。

公开(公告)号：US5260158A

公开(公告)日：1993-11-09

申请号：US717152

申请日：1991-06-18

申请人： Hiroyuki Yamaji ,  Akiyoshi Urano ,  Yumiko Sano

发明人： Hiroyuki Yamaji ,  Akiyoshi Urano ,  Yumiko Sano

IPC分类号： G03G9/09

CPC分类号： G03G9/0926 ,  G03G9/0916 ,  Y10S430/101

摘要： A photoconductive toner of the present invention contains a resin binder, zinc oxide, and a dye for sensitization of the zinc oxide, the sensitizer dye being represented by the following formula (1): ##STR1## wherein, X.sup.1 to X.sup.8 represent hydrogen or methoxy groups with a proviso that at least one of X.sup.1 to X.sup.8 represents a methoxy group, R.sup.1 and R.sup.2 are independently alkyl groups or derivatives thereof, and n is an integer. A photoconductive toner of the present invention satisfies requirements for both sensitivity and coloration, and, moreover, possesses high photosensitivity in the laser wavelength region as compared with conventional toners.

公开(公告)号：US4634646A

公开(公告)日：1987-01-06

申请号：US745120

申请日：1985-06-17

申请人： Yumiko Sano ,  Teruyo Morimoto

发明人： Yumiko Sano ,  Teruyo Morimoto

IPC分类号： G03G15/05 ,  G03G9/09 ,  G03G13/22 ,  G03G13/26

CPC分类号： G03G9/0926 ,  G03G13/22

摘要： A method for the formation of images comprising: (1) feeding a photoconductive toner, having a particle diameter of on the average 6 .mu.m or less, to a conductive substrate to form a toner layer of 1 to 8 layers on said conductive substrate, (2) uniformly charging said toner layer, and (3) exposing said toner layer to form an electrostatic latent image thereon corresponding to the original.

摘要翻译： 一种用于形成图像的方法，包括：（1）将具有平均6μm或更小的粒径的感光调色剂供给到导电基板，以在所述导电基板上形成1至8层的调色剂层， （2）对所述调色剂层进行均匀充电，以及（3）使所述调色剂层暴露在与原件相对应的静电潜像上。

公开(公告)号：US4524117A

公开(公告)日：1985-06-18

申请号：US621090

申请日：1984-06-15

申请人： Kouji Maekawa ,  Mamoru Kato ,  Syoji Nakagama ,  Yumiko Sano

发明人： Kouji Maekawa ,  Mamoru Kato ,  Syoji Nakagama ,  Yumiko Sano

IPC分类号： G03G13/01 ,  G03G15/01

CPC分类号： G03G13/01

摘要： An electrophotographic method for the formation of two-colored images comprising: (1) uniformly charging the surface of a photoreceptor having a conductive substance and a photoconductive layer formed on the conductive substance, said photoconductive layer being sensitive to a first color, (2) exposing a two-colored original, to form on said photoconductive layer an electrostatic latent image, which corresponds to a second color region in the original, with the same polarity as the electric charges on the surface of said photoconductive layer, (3) subjecting the surface of said photoreceptor to a reversal development treatment by the use of a photoconductive color toner charged with the same polarity as the electric charges constituting said electrostatic latent image, to develop the non-charged region with the photoconductive color toner, (4) subjecting said electrostatic latent image to a normal development treatment by the use of an insulative toner having a color different from the color of said photoconductive color toner, and (5) charging the color toners on said photoconductive layer with a different polarity from the charging polarity in process (1) and simultaneously exposing said original through a filter shielding against said first color, thereby providing a practical method for the formation of a desired two colored distinct image corresponding to the original.

摘要翻译： 一种用于形成双色图像的电子照相方法，包括：（1）对形成在导电物质上的导电物质和光电导层的感光体的表面进行均匀充电，所述光电导层对第一种颜色敏感，（2） 暴露双色原件，在所述光电导层上形成与原始图案中的第二颜色区域相对应的静电潜像，其极性与所述光电导层的表面上的电荷相同，（3）使 所述感光体的表面通过使用与构成所述静电潜像的电荷具有相同极性的感光色调色剂进行反转显影处理，利用光电导色调色剂显影未带电区域，（4）使所述 静电潜像通过使用具有不同颜色的绝缘调色剂进行正常显影处理 所述感光色调色剂的颜色，以及（5）在所述光电导层上以与处理（1）中的充电极性不同的极性对彩色调色剂进行充电，并且同时使所述原稿通过过滤屏蔽而暴露于所述第一颜色，从而提供实用 用于形成对应于原始的期望的两个彩色不同图像的方法。