公开(公告)号：US5256512A

公开(公告)日：1993-10-26

申请号：US813099

申请日：1991-12-24

申请人： Hiroyuki Kobayashi ,  Mitsuru Uchida ,  Kenji Okado

发明人： Hiroyuki Kobayashi ,  Mitsuru Uchida ,  Kenji Okado

IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G13/01 ,  G03G9/097 ,  G03G9/107 ,  G03G9/113

CPC分类号： G03G13/013 ,  G03G9/08 ,  G03G9/09

摘要： Four color toners of yellow, magenta, cyan and black, and four two-component developers containing the four color toners respectively in combination with a resin-coated ferrite carrier suitable for multi-color electrophotographic copying are provided Each of the four-color toners is strictly regulated in relation not only to the carrier but also to the other color toners. More specifically, each color toner is strictly controlled with respect to a particle size distribution, freeness from agglomeration, melting characteristics including heat-absorption peaks and apparent viscosity on melting, chromaticity, triboelectric chargeability and optical toner concentration detection characteristic. Because of the strict regulation of these various parameters, the resultant multi-color toner or developer system shows excellent performances at every stage of multi-color electrophotography including development, transfer and fixing (color-mixing) for a long period of successive copying.

摘要翻译： 黄色，品红色，青色和黑色的四种颜色调色剂和分别与适用于多色电子照相复印的树脂涂覆的铁氧体载体组合的四种颜色调色剂的四种双组分显影剂分别是四色调色剂 严格规定不仅与承运人有关，而且与其他颜色调色剂有关。 更具体地说，每种彩色调色剂都是相对于粒度分布，结块游离度，包括热吸收峰的熔融特性和熔融时的表观粘度，色度，摩擦带电性和光调色剂浓度检测特性来严格控制的。 由于这些各种参数的严格调节，所得到的多色调色剂或显影剂系统在多色电子照相术的每个阶段显示出优异的性能，包括长时间连续复制的显影，转印和定影（色混合）。

公开(公告)号：US06936394B2

公开(公告)日：2005-08-30

申请号：US10081844

申请日：2002-02-25

申请人： Kenji Okado ,  Yushi Mikuriya ,  Kazumi Yoshizaki ,  Naotaka Ikeda

发明人： Kenji Okado ,  Yushi Mikuriya ,  Kazumi Yoshizaki ,  Naotaka Ikeda

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113

CPC分类号： G03G9/1136 ,  G03G9/08782 ,  G03G9/10 ,  G03G9/107

摘要： An electrostatic latent image on an image-bearing member is developed with a two-component developer comprising a toner and a carrier stored in a developer vessel while supplying as required a replenishing developer to the developer vessel. The replenishing developer comprises 1 wt. part of a carrier and 2-50 wt. parts of a toner, wherein the carrier is a magnetic fine particle-dispersed resin carrier comprising at least inorganic compound particles and a carrier binder resin, and the toner has a weight-average particle size of 3 to 10 μm and contains 1 to 40 wt. % of solid wax.

摘要翻译： 图像承载部件上的静电潜像用包含调色剂和存储在显影剂容器中的载体的双组分显影剂显影，同时根据需要向显影剂容器提供补充显影剂。 补充显影剂包含1重量％ 载体的一部分和2-50wt。 调色剂的一部分，其中所述载体是至少包含无机化合物颗粒和载体粘合剂树脂的磁性细颗粒分散树脂载体，并且所述调色剂的重均粒径为3至10μm，并且含有1至40wt 。 ％固体蜡。

公开(公告)号：US06316157B1

公开(公告)日：2001-11-13

申请号：US09610914

申请日：2000-07-05

申请人： Junko Yoshikawa ,  Kenji Okado ,  Masaaki Taya ,  Yushi Mikuriya ,  Kazumi Yoshizaki ,  Yasushi Katsuta ,  Kenichi Nakayama

发明人： Junko Yoshikawa ,  Kenji Okado ,  Masaaki Taya ,  Yushi Mikuriya ,  Kazumi Yoshizaki ,  Yasushi Katsuta ,  Kenichi Nakayama

IPC分类号： G03G9097

CPC分类号： G03G9/09708 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/09783

摘要： A non-metallic black toner is disclosed. The toner has toner particles containing at least a binder resin, a carbon black and an organometallic compound, and an external additive. The toner particles contain 10 to 200 ppm of at least one kind of alkali metal element and at least one kind of organometallic compound. The toner particles further contain a polyester resin. The non-metallic black toner has a weight-average particle diameter of 4 to 11 &mgr;m, the following loss tangents tan &dgr; shown by dielectric loss factor ∈″/dielectric constant ∈′ at frequencies of 5×104 Hz and 105 Hz: tan &dgr; (5×104 Hz)≦0.0125 tan &dgr; (105 Hz)≦0.0105, a Carr's flowability index of 50 or more, and a Carr's floodability index of 65 or more. Also, an image forming method is disclose using the black toner.

摘要翻译： 公开了一种非金属黑色调色剂。 调色剂具有至少含有粘合剂树脂，炭黑和有机金属化合物的调色剂颗粒和外部添加剂。 调色剂颗粒含有10-200ppm的至少一种碱金属元素和至少一种有机金属化合物。 调色剂颗粒还含有聚酯树脂。 非金属黑色调色剂的重均粒径为4〜11μm，频率为5×104Hz，105Hz时的介电损耗因子∈“/介电常数ε'表示的以下损耗正切tanδ：卡尔的流动性 指数为50以上，卡尔的防洪指数为65以上。 此外，使用黑色调色剂公开了图像形成方法。

公开(公告)号：US5164275A

公开(公告)日：1992-11-17

申请号：US878414

申请日：1992-05-04

申请人： Hiroyuki Kobayashi ,  Mitsuru Uchida ,  Kenji Okado

发明人： Hiroyuki Kobayashi ,  Mitsuru Uchida ,  Kenji Okado

IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G13/01

CPC分类号： G03G9/09 ,  G03G13/013 ,  G03G9/08

摘要： Four color toners of yellow, magenta, cyan and black, and four two-component developers containing the four color toners respectively in combination with a resin-coated ferrite carrier suitable for multi-color electrophotographic copying are provided. Each of the four-color toners is strictly regulated in relation not only to the carrier but also to the other color toners. More specifically, each color toner is strictly controlled with respect to a particle size distribution, freeness from agglomeration, melting characteristics including heat-absorption peaks and apparent viscosity on melting, chromaticity, triboelectric chargeability and optical toner concentration detection characteristic. Because of the strict regulation of these various parameters, the resultant multi-color toner or developer system shows excellent performances at every stage of multi-color electrophotography including development, transfer and fixing (color-mixing) for a long period of successive copying.

摘要翻译： 提供了黄色，品红色，青色和黑色的四色调色剂和分别与适用于多色电子照相复印的树脂涂覆的铁氧体载体组合的四色调色剂的四种双组分显影剂。 四色调色剂中的每一种都不仅与载体相关，而且与其他颜色调色剂有关。 更具体地说，每种彩色调色剂都是相对于粒度分布，结块游离度，包括热吸收峰的熔融特性和熔融时的表观粘度，色度，摩擦带电性和光调色剂浓度检测特性来严格控制的。 由于这些各种参数的严格调节，所得到的多色调色剂或显影剂系统在多色电子照相术的每个阶段显示出优异的性能，包括长时间连续复制的显影，转印和定影（色混合）。

公开(公告)号：US4954404A

公开(公告)日：1990-09-04

申请号：US251780

申请日：1988-10-03

申请人： Masahiro Inoue ,  Hatsuo Tajima ,  Yuji Sakemi ,  Kenji Okado

发明人： Masahiro Inoue ,  Hatsuo Tajima ,  Yuji Sakemi ,  Kenji Okado

IPC分类号： G03G15/01 ,  G03G13/01 ,  G03G13/09

CPC分类号： G03G13/09 ,  G03G13/013

摘要： A method of reverse development for depositing the toner particles to the light potential area of a photosensitive member. The developer used contains magnetic carrier particles and toner particles. An alternating electric field is formed in the developing position or zone. A relative volumetric ratio Q (%) of the magnetic carrier particles in the developing position satisfies 15.0.ltoreq.Q.ltoreq.28.0. The relative volumetric ratio is defined asQ=(M/h).times.(1/.rho.).times.C.sigma./(T+C)where M (g/cm.sup.2) is an amount of applied developer on a developing sleeve surface per unit area, h (cm) is a height of space in the developing position, .rho. (g/cm.sup.3) is a true density of the magnetic carrier particles, C/(T+C) (%) is a weight ratio of the carrier particles in the developer on the surface of the sleeve, and .sigma. is a ratio of a peripheral speed of the sleeve relative to the peripheral speed of the photosensitive member.

摘要翻译： 一种用于将调色剂颗粒沉积到感光构件的光电势区域的反向显影方法。 使用的显影剂包含磁性载体颗粒和调色剂颗粒。 在显影位置或区域形成交变电场。 显影位置中的磁性载体颗粒的相对体积比Q（％）满足15.0≤Q≤28.0。 相对体积比定义为Q =（M / h）x（1 / rho）xC sigma /（T + C）其中M（g / cm2）是每单位面积在显影套筒表面上施加的显影剂的量， h（cm）是显影位置的高度，rho（g / cm3）是磁性载体颗粒的真实密度，C /（T + C）（％）是载体颗粒的重量比 显影剂在套筒的表面上，西格玛是套筒的圆周速度相对于感光构件的圆周速度的比率。

公开(公告)号：US4904558A

公开(公告)日：1990-02-27

申请号：US317835

申请日：1989-03-03

申请人： Takayuki Nagatsuka ,  Kenji Okado ,  Makoto Kanbayashi

发明人： Takayuki Nagatsuka ,  Kenji Okado ,  Makoto Kanbayashi

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/107 ,  G03G13/09 ,  G03G15/08

CPC分类号： G03G9/0819 ,  G03G13/09 ,  G03G9/097 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/107

摘要： An image forming method that includes the steps of providing a developer comprising at least colored resin particles, a fluidity improver having a specific chargeability and magnetic particles wherein the colored resin particles have a volume-average particle size of 4-10 microns and a specific volume-basis particle size distribution; supplying the developer to a surface of a developer-carrying member disposed opposite to a latent image-bearing member having thereon an electrostatic latent image; carrying the developer on the surface of the developer-carrying member; and developing the electrostatic latent image on the latent image-bearing member with the developer in a developing zone where the latent image-bearing member is disposed opposite to the developer-carrying member to form a toner image; wherein an alternating electric field comprising an AC component and a DC component is imparted to the developing zone under specific conditions.

公开(公告)号：US4592987A

公开(公告)日：1986-06-03

申请号：US658787

申请日：1984-10-09

申请人： Yasuo Mitsuhashi ,  Masanori Takenouchi ,  Kenji Okado ,  Eiichi Imai ,  Koshi Suematsu

发明人： Yasuo Mitsuhashi ,  Masanori Takenouchi ,  Kenji Okado ,  Eiichi Imai ,  Koshi Suematsu

IPC分类号： G03G15/09 ,  G03G9/083 ,  G03G13/09 ,  G03G13/08

CPC分类号： G03G13/09 ,  Y10S222/01

摘要： A method for applying a toner comprising: forming, in a container containing a toner and magnetic particles for application of the toner, a magnetic brush of the magnetic particles; circulating the magnetic particles in the container; and forming a thin layer of the toner electrically charged on the toner carrying member; wherein the magnetic particles have a particle size distribution of 30 wt. % or more in the range of 150 to 200 mesh and 5 wt. % or less of under 250 mesh, and the weight ratio of the toner to the magnetic particles is from 5:95 to 50:50 in the region where the magnetic brush is formed.

摘要翻译： 一种施加调色剂的方法，包括：在容纳调色剂的容器和用于施加调色剂的磁性颗粒的容器中形成磁性颗粒的磁刷; 将磁性颗粒循环在容器中; 以及形成在所述调色剂承载构件上带电的所述调色剂薄层; 其中所述磁性颗粒的粒度分布为30wt。 在150至200目和5wt。 ％以下的250目以下，在形成磁刷的区域中，调色剂与磁性粒子的重量比为5:95〜50:50。