公开(公告)号：US4686935A

公开(公告)日：1987-08-18

申请号：US760587

申请日：1985-07-30

申请人： Toshikazu Matsui ,  Akira Fushida ,  Nobuyasu Honda ,  Minoru Nakao ,  Nobuyuki Tsuji

发明人： Toshikazu Matsui ,  Akira Fushida ,  Nobuyasu Honda ,  Minoru Nakao ,  Nobuyuki Tsuji

IPC分类号： G03G13/09 ,  G03G15/09

CPC分类号： G03G15/0921 ,  G03G13/09

摘要： Disclosed is a development device comprising a development sleeve of a non-magnetic material, a magnet having a plurality of magnetic poles and fixed within the sleeve, a mechanism for rotating the sleeve, a mechanism for agitating a developer composed of a magnetic carrier and a chargeable toner and supplying it to the sleeve, a mechanism for adjusting a magnetic brush formed on the sleeve to a predetermined brush length and supplying it to a development zone, and a mechanism for scraping off the magnetic brush which has gone past the development zone from the sleeve, said magnetic poles consisting of a main pole for development corresponding to the development zone and poles for conveying corresponding to a conveying zone ranging from the position of supplying the developer to the position of cutting the magnetic brush, said magnetic carrier being a ferrite carrier, and each said conveying magnetic pole having a magnetic flux density 50 to 86% of that of the main pole for development.

摘要翻译： 公开了一种显影装置，包括非磁性材料的显影套筒，具有多个磁极并固定在套筒内的磁体，用于旋转套筒的机构，用于搅拌由磁性载体和 可充电调色剂并将其供应到套筒，用于将形成在套筒上的磁刷调节到预定刷长度并将其提供给显影区的机构，以及用于刮除已经经过显影区的磁刷的机构 套筒，所述磁极由对应于显影区的显影用主极和对应于从供给显影剂的位置到切割磁刷的位置的传送区域传送的磁极组成，所述磁性载体为铁素体 并且每个所述传送磁极具有用于显影的主极的磁通密度的50至86％的磁通密度 。

公开(公告)号：US4540645A

公开(公告)日：1985-09-10

申请号：US574575

申请日：1984-01-27

申请人： Nobuyasu Honda ,  Toshikazu Matsui ,  Akira Fushida ,  Toshimitsu Ikeda ,  Kenji Takahashi ,  Hideo Fukuda ,  Yasushi Kamezaki ,  Takashi Teshima

发明人： Nobuyasu Honda ,  Toshikazu Matsui ,  Akira Fushida ,  Toshimitsu Ikeda ,  Kenji Takahashi ,  Hideo Fukuda ,  Yasushi Kamezaki ,  Takashi Teshima

IPC分类号： G03G9/09 ,  G03G9/097 ,  G03G9/107 ,  G03G13/09 ,  G03G15/09

CPC分类号： G03G13/09 ,  G03G9/0906 ,  G03G9/09783 ,  G03G9/107

摘要： Disclosed is a magnetic brush development method comprising supplying a two-component type developer comprising a mixture of magnetic carrier particles with toner particles chargeable by friction with the magnetic carrier particles onto a developing sleeve consisting of a non-magnetic sleeve having a magnet installed therein to form a magnetic brush of the developer, and bringing the magnetic brush in sliding contact with the surface of a photosensitive material having an electrostatic latent image formed thereon in the state where a bias voltage is applied between the photosensitive material and the sleeve, whereby a toner image corresponding to the electrostatic latent image is formed, wherein the two-component type developer comprises a ferrite carrier and electroscopic toner particles at a weight ratio of from 4/1 to 20/1.

摘要翻译： 公开了一种磁刷显影方法，其包括将包含磁性载体颗粒的混合物的二组分型显影剂与通过与磁性载体颗粒摩擦而带电的调色剂颗粒引入到由其中安装有磁体的非磁性套筒组成的显影套筒上 形成显影剂的磁刷，并且在感光材料和套筒之间施加偏置电压的状态下使磁刷与其上形成有静电潜像的感光材料的表面滑动接触，由此调色剂 形成对应于静电潜像的图像，其中双组分型显影剂包含铁素体载体和重量比为4/1至20/1的电致调色剂颗粒。

公开(公告)号：US4652510A

公开(公告)日：1987-03-24

申请号：US771416

申请日：1985-08-30

申请人： Akira Fushida ,  Toshikazu Matsui ,  Yuuji Hasegawa ,  Masahiko Maeda ,  Nobuyuki Tsuji ,  Akira Horiuchi ,  Kazunori Yukitake

发明人： Akira Fushida ,  Toshikazu Matsui ,  Yuuji Hasegawa ,  Masahiko Maeda ,  Nobuyuki Tsuji ,  Akira Horiuchi ,  Kazunori Yukitake

IPC分类号： G03G9/083 ,  G03G13/08 ,  G03G13/09 ,  G03G15/00 ,  G03G15/06 ,  G03G15/08 ,  G03G15/09 ,  G03G15/16 ,  G03G21/00 ,  G03G9/14

CPC分类号： G03G15/065 ,  G03G13/09 ,  G03G15/0914

摘要： Disclosed is an electrophotographic process which comprises developing an electrophotographic light-sensitive layer having an electrostatic charge image of a certain polarity with a one-component type magnetic developer where positive and negative frictional charge polarities are mingled, under development bias voltage conditions capable of developing the electrostatic charge image, the background or both, and bringing the light-sensitive layer having a developer layer formed thereon into contact with a transfer sheet under a transfer charge of the same polarity as that of the electrostatic charge image when a positive image is formed or under a transfer charge of a polarity reverse to that of the electrostatic charge image when a negative image is formed, to form an image on the transfer sheet.

摘要翻译： 公开了一种电子照相方法，其包括在具有正极和负摩擦带电极性混合的单组分型磁性显影剂下显影具有一定极性的静电荷图像的电子照相感光层，在显影偏压条件下， 静电荷图像，背景或两者，并且当形成正像时，使其上形成有显影剂层的感光层与转印片接触，转印电荷与静电荷图像的极性相同， 在形成负像时，在与静电荷图像的极性相反的转印电荷下，在转印纸上形成图像。

公开(公告)号：US4576465A

公开(公告)日：1986-03-18

申请号：US535637

申请日：1983-09-26

申请人： Akira Fushida ,  Yuuji Hasegawa ,  Toshikazu Matsui

发明人： Akira Fushida ,  Yuuji Hasegawa ,  Toshikazu Matsui

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09

摘要： The toner concentration of a two-component type developer including a mixture of a magnetic carrier and an electroscopic toner is adjusted by bringing a magnetic brush of the two-component type developer into sliding contact with a mesh screen to move the electroscopic toner toward the magnetic brush side or the opposite side through apertures of the mesh screen. Apparatus for adjusting the toner concentration in a two-component type developer includes a mechanism for forming a magnetic brush from a mixture of a magnetic carrier and an electroscopic toner and for delivering the magnetic brush. The mechanism includes a support formed of an electroconductive non-magnetic material and a magnet having a plurality of poles and being built in the interior of the support. At least one of the support and magnet is movable. A mesh screen is formed of an electroconductive material and is arranged to support the electroscopic toner on the upper surface side thereof and to have sliding contact with the magnetic brush on the lower surface side thereof. A bias voltage applying mechanism is provided for applying a bias voltage between the support and mesh screen.

摘要翻译： 通过使双组分型显影剂的磁刷与网眼屏幕滑动接触来调节包括磁性载体和电动调色剂的混合物的双组分型显影剂的调色剂浓度，以将电致调色剂朝向磁性 刷子侧或相对侧通过筛网的孔。 用于调节双组分型显影剂中的调色剂浓度的装置包括用于从磁性载体和电致调色剂的混合物形成磁刷并用于输送磁刷的机构。 该机构包括由导电非磁性材料形成的支撑体和具有多个极并被构建在支撑件内部的磁体。 支撑体和磁体中的至少一个是可移动的。 网眼由导电材料形成，并且被布置成在其上表面侧支撑电致调色剂，并且在其下表面侧与磁刷滑动接触。 提供偏压施加机构用于在支撑和筛网之间施加偏置电压。

公开(公告)号：US4430410A

公开(公告)日：1984-02-07

申请号：US70052

申请日：1979-08-27

申请人： Tatsuo Aizawa ,  Shoji Matsumoto ,  Kaoru Sakata ,  Toshikazu Matsui ,  Akira Fushida ,  Toshimitsu Ikeda ,  Nobuyoshi Hisao

发明人： Tatsuo Aizawa ,  Shoji Matsumoto ,  Kaoru Sakata ,  Toshikazu Matsui ,  Akira Fushida ,  Toshimitsu Ikeda ,  Nobuyoshi Hisao

IPC分类号： G03G15/09 ,  G03G13/09

CPC分类号： G03G15/0914 ,  Y10S430/104

摘要： In a method and apparatus for developing a latent electrostatic image formed on the surface of an image-bearing material by applying a powdery developer thereto, which includes magnetically retaining a layer of a relatively conductive one-component developer having a resistivity of not more than 10.sup.13 ohms-cm on the surface of a developer-retaining member, and bringing the developer on the surface of the developer-retaining member into contact with the surface of the image bearing material, the improvement wherein the developer-retaining member has a resistance, measured by a point-plane resistance measuring method in an environment kept at a temperature of 20.degree. C. and a humidity of 50%, of from 3.times.10.sup.7 ohms to 1.times.10.sup.10 ohms. The improved method makes possible good development without causing a background fog or a tail effect.

摘要翻译： 在通过向其施加粉末显影剂来显影形成在图像承载材料的表面上的静电潜像的方法和装置中，其包括磁性地保持具有不大于1013的电阻率的相对导电的单组分显影剂的层 在显影剂保持构件的表面上的欧姆 - 厘米，并使显影剂保持构件的表面上的显影剂与图像承载材料的表面接触，其中显影剂保持构件具有电阻，测量 通过在保持在20℃的温度和50％的湿度为3×10 7欧姆至1×10 10欧姆的环境中的点平面电阻测量方法。 改进的方法可以很好地发展而不引起背景雾或尾巴效应。

公开(公告)号：US4424269A

公开(公告)日：1984-01-03

申请号：US356215

申请日：1982-03-08

申请人： Hideyuki Sasaki ,  Toru Nakazawa ,  Yoshiaki Kato ,  Hideo Fukuda ,  Yasushi Kamezaki ,  Akira Fushida

发明人： Hideyuki Sasaki ,  Toru Nakazawa ,  Yoshiaki Kato ,  Hideo Fukuda ,  Yasushi Kamezaki ,  Akira Fushida

IPC分类号： C08K5/09 ,  C09J163/00 ,  G03G5/05 ,  G03G5/087

CPC分类号： G03G5/0517

摘要： Disclosed is a photosensitive plate for electrophotography, which comprises a conductive substrate and a layer of a composition formed by dispersing a photoconductor in a binder resin, which is formed on the substrate, wherein the resin binder comprises an epoxy resin component and an amine type curing agent component and the resin binder further comprises an acid anhydride as the ozone deterioration preventing agent. This photosensitive plate is excellent in the ozone resistance and the moisture resistance.

摘要翻译： 公开了一种用于电子照相术的感光板，其包括导电基板和通过将光电导体分散在形成在基板上的粘合剂树脂中而形成的组合物层，其中树脂粘合剂包括环氧树脂组分和胺型固化 助剂组分和树脂粘合剂还包含酸酐作为臭氧降解防止剂。 该感光板的耐臭氧性和耐湿性优异。

公开(公告)号：US4391892A

公开(公告)日：1983-07-05

申请号：US321102

申请日：1981-11-13

申请人： Yasushi Kamezaki ,  Eiichi Inoue ,  Hitoshi Nishihama ,  Akira Fushida ,  Joji Matsumoto

发明人： Yasushi Kamezaki ,  Eiichi Inoue ,  Hitoshi Nishihama ,  Akira Fushida ,  Joji Matsumoto

IPC分类号： G03G15/05 ,  G03G5/05 ,  G03G5/08 ,  G03G5/087 ,  G03G13/22 ,  G03G15/00 ,  H01L31/08 ,  G03G13/02

CPC分类号： G03G5/087 ,  G03G13/22 ,  Y10S101/37 ,  Y10S430/102

摘要： In an electrostatic photographic process comprising subjecting an electrostatic photographic photosensitive plate to the combination of negative charging, positive charging and imagewise exposure to form an electrostatic latent image of a positive polarity, said electrostatic photographic photosensitive plate having such charging characteristics that a photosensitive layer can be positively charged by sequential negative corona charging and positive corona charging and positive charging is rendered substantially impossible by irradiation with light, and then subjecting the so treated photosensitive plate to positive charging a predetermined number of times, whereby an electrostatic latent image is formed the predetermined number of times by imagewise exposure conducted once, if a zinc oxide-resin dispersion is used for the photosensitive layer of the photosensitive plate and predetermined amounts of a triphenylmethane basic dye and a silicone oil are incorporated in the photosensitive layer, the time required for negative charging can be shortened, and the charge potential at the time of positive charging can be increased and accumulation of the residual potential after irradiation with light can be reduced.

摘要翻译： 在静电照相方法中，静电照相感光板具有负电荷，正电荷和成像曝光的组合，以形成正极性的静电潜像，所述静电感光感光板具有使感光层可以是 通过顺序负电晕充电带正电，正电晕充电和正电充电基本上不可能通过照射光，然后使经处理的感光板正常充电预定次数，由此形成预定数量的静电潜像 的时间通过成像曝光进行一次，如果氧化锌树脂分散体用于感光板的感光层，并且将预定量的三苯基甲烷碱性染料和硅油引入感光体中 可以缩短负电荷所需的时间，并且可以增加正充电时的充电电位，并且可以减少照射后的残留电位的积累。

公开(公告)号：US4388392A

公开(公告)日：1983-06-14

申请号：US252261

申请日：1981-04-08

申请人： Yoshiaki Kato ,  Akira Fushida

发明人： Yoshiaki Kato ,  Akira Fushida

IPC分类号： C08K5/00 ,  B32B7/02 ,  C08K5/01 ,  C08L67/00 ,  G03G5/00 ,  G03G5/047 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07 ,  G03G5/14

CPC分类号： G03G5/0605 ,  G03G5/047 ,  G03G5/06

摘要： Disclosed is a laminated photosensitive plate for electrophotography, which comprises a conductive substrate, a charge generating layer containing a photoconductive organic pigment, which is formed on the surface of the substrate, and a charge transporting layer formed on the charge generating layer, wherein the charge transporting layer is formed of a homogeneous composition comprising an electron-donative polymeric photoconductor and a fused ring-containing, electron-donative polycyclic aromatic hydrocarbon incorporated in the polymeric photoconductor in an amount of 0.05 to 3 parts by weight per part by weight of the polymeric photoconductor.In this laminated photosensitive plate, by incorporation of the fused ring-containing, electron-donative polycyclic aromatic hydrocarbon into the charge transporting layer, not only mechanical properties such as abrasion resistance, toughness and adhesion but also electrophotographic characteristics such as initial saturation surface voltage, sensitivity and residual voltage can prominently be improved.

摘要翻译： 公开了一种用于电子照相的层叠感光板，其包括形成在基板表面上的导电基板，含有光导有机颜料的电荷产生层和形成在电荷产生层上的电荷输送层，其中电荷 输送层由均匀的组合物形成，该组合物包含掺入聚合物光电导体中的给电子聚合物光电导体和稠环的给电子多环芳烃，其量为每重量份聚合物聚合物0.05至3重量份 感光体 在该层叠感光板中，通过将含有稠环的供电子性多环芳香烃并入电荷输送层，不仅具有耐磨损性，韧性和粘合性等机械性能，而且还具有初始饱和面电压等电子照相特性， 灵敏度和残余电压可以显着提高。

公开(公告)号：US4438187A

公开(公告)日：1984-03-20

申请号：US366331

申请日：1982-04-07

申请人： Akira Fushida ,  Yoshiaki Kato

发明人： Akira Fushida ,  Yoshiaki Kato

IPC分类号： C08L39/00 ,  G03G5/06 ,  G03G5/07 ,  G03G5/09

CPC分类号： G03G5/0657 ,  G03G5/0609 ,  Y10S430/10

摘要： Disclosed is a photosensitive composition for electrophotography, which comprises 100 parts by weight of polyvinyl carbazole, 5 to 50 parts by weight of a perylene pigment and 5 to 50 parts by weight of a halonaphthoquinone.

摘要翻译： 公开了一种电子照相用感光组合物，其包含100重量份的聚乙烯咔唑，5至50重量份的苝颜料和5至50重量份的卤萘醌。

公开(公告)号：US4123271A

公开(公告)日：1978-10-31

申请号：US744450

申请日：1976-11-23

申请人： Akira Fushida ,  Hiroichi Morikawa ,  Toshihiro Shinsho ,  Takaaki Miyazaki ,  Tatsuo Aizawa

发明人： Akira Fushida ,  Hiroichi Morikawa ,  Toshihiro Shinsho ,  Takaaki Miyazaki ,  Tatsuo Aizawa

IPC分类号： G03G5/04 ,  G03G7/00

CPC分类号： G03G5/04

摘要： A process for preparing a photosensitive material for electrostatic photography having an improved memory resistance, which comprises a photoconductive layer on an electrically conductive substrate, the photoconductive layer comprising (1) a finely divided inorganic photoconductor, (2) 5 to 50 parts by weight, per 100 parts by weight of the photoconductor of an electrically insulating organic synthetic resin binder having a specific resistance of at least 10.sup.14 ohm-cm, and (3) 0.001 to 1 % by weight, based on the photoconductor, of at least one photo-memory erasing compound selected from alkali metal dichromates, which process comprises forming the photoconductive layer by applying a coating composition to the electrically conductive substrate at a coating weight of 5 to 50 g/m.sup.2, the coating composition comprising the photo-memory erasing compound, the photoconductor, the resin binder, an aromatic solvent in which the resin binder is dissolved or dispersed, an a polar solvent for the photo-memory erasing compound, the polar solvent being soluble in the aromatic solvent and being selected such that the photo-memory erasing compound is soluble in said polar solvent.

摘要翻译： 一种用于制备具有改进的记忆电阻的静电摄影用感光材料的方法，其包括导电性基板上的光电导层，所述光电导层包含（1）细碎无机感光体，（2）5〜50重量份， 每100重量份电阻率为至少1014欧姆 - 厘米的电绝缘有机合成树脂粘合剂的光电导体，和（3）基于光电导体的0.001至1重量％的至少一个光致抗蚀剂， 记忆擦除化合物，选自碱金属重铬酸盐，该方法包括通过以5至50g / m 2的涂层重量将涂料组合物施涂到导电基材上形成光电导层，该涂料组合物包含光记录擦除化合物， 光导体，树脂粘合剂，其中溶解或分散树脂粘合剂的芳族溶剂，ph的极性溶剂 所述极性溶剂可溶于所述芳族溶剂，并且选择为使得所述光记忆擦除化合物可溶于所述极性溶剂中。