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    Method of forming composite color image
    4.
    发明申请
    Method of forming composite color image 有权
    形成复合彩色图像的方法

    公开(公告)号：US20070172748A1

    公开(公告)日：2007-07-26

    申请号：US11504685

    申请日：2006-08-16

    申请人： Satoshi Inoue ,  Koutarou Yoshihara ,  Yosuke Tsurumi ,  Moegi Iguchi ,  Masahiro Takagi

    发明人： Satoshi Inoue ,  Koutarou Yoshihara ,  Yosuke Tsurumi ,  Moegi Iguchi ,  Masahiro Takagi

    IPC分类号： G03G15/01

    CPC分类号： G03G15/0126 ,  G03G2215/0119 ,  G03G2215/0158

    摘要： The present invention provides a composite color image forming method. The method includes electrically charging a latent image-holding member; exposing the charged latent image-holding member to light to form an electrostatic latent image; developing the electrostatic latent image with a two-component developer containing toner particles of one color and a carrier to form a toner image on the latent image-holding member; primarily transferring the toner image from the latent image-holding member to an intermediate transfer member; repeating the electrically charging, the exposing, the developing, and the primarily transferring, while the toner particles are replaced with toner particles of different color, to form a composite color image on the intermediate transfer member; and secondarily transferring the composite color image from the intermediate transfer member to a recording medium. The carrier contains magnetic substance-dispersed core particles in which a magnetic substance is dispersed in a resin, and a coating layer that coats the surface of each of the magnetic substance-dispersed core particles at a covering rate of 95% or more. In addition, the carrier has a degree of circularity of 0.970 or more. The intermediate transfer member is a belt that has a substrate whose Young's modulus is in the range of 3,000 to 6,500 MPa. During the primary transferring, primary transfer nip pressure is in the range of 8 to 20 gf/cm, and a value (T/P) obtained by dividing a primary transfer current value T (μA) by a processing speed P (mm/sec) is from 0.08 to 0.18.

    摘要翻译： 本发明提供一种复合彩色图像形成方法。 该方法包括对潜像保持部件进行充电; 将带电潜象保持部件曝光，形成静电潜像; 用含有一种颜色的调色剂颗粒和载体的双组分显影剂显影静电潜像，以在潜像保持构件上形成调色剂图像; 主要将调色剂图像从潜像保持部件转印到中间转印部件; 在调色剂颗粒被不同颜色的调色剂颗粒代替时，重复进行充电，曝光，显影和主要转印，以在中间转印部件上形成复合彩色图像; 然后将复合彩色图像从中间转印部件转印到记录介质上。 载体包含磁性物质分散的核心颗粒，其中磁性物质分散在树脂中，以及涂覆层以覆盖率95％或更高覆盖每个磁性物质分散的核心颗粒的表面。 此外，载体的圆形度为0.970以上。 中间转印部件是具有杨氏模量在3,000〜6,500MPa范围内的基板的带。 在初次转印期间，一次转印夹持压力在8〜20gf / cm的范围内，通过将一次转印电流值T（muA）除以处理速度P（mm / sec）而得到的值（T / P） ）为0.08〜0.18。

    Electrophotographic toner, electrophotographic developer and process for forming image
    5.
    发明授权
    Electrophotographic toner, electrophotographic developer and process for forming image 有权
    电子照相色调剂，电子照相显影剂和形成图像的方法

    公开(公告)号：US06613491B2

    公开(公告)日：2003-09-02

    申请号：US10003088

    申请日：2001-12-06

    申请人： Satoshi Inoue ,  Masahiro Takagi ,  Kaori Ohishi ,  Rieko Kataoka ,  Fusako Kiyono ,  Atsuhiko Eguchi ,  Chiaki Suzuki

    发明人： Satoshi Inoue ,  Masahiro Takagi ,  Kaori Ohishi ,  Rieko Kataoka ,  Fusako Kiyono ,  Atsuhiko Eguchi ,  Chiaki Suzuki

    IPC分类号： G03G908

    CPC分类号： G03G9/09725 ,  G03G9/0827 ,  G03G9/09708 ,  G03G9/09716

    摘要： In an electrophotographic developer and a process for forming an image, an electrophotographic toner used therein contains spherical toner parent particles and two or more kinds of inorganic particles having different average particle diameters, at least one kind of the inorganic fine particles being spherical particles having an average primary particle diameter of about 80 to 300 nm, and the inorganic particles containing the spherical particles being attached to the toner parent particles to provide a structure satisfying the following conditions (1) and (2): (1) the spherical particles have a coverage on a surface of the toner parent particles of about 20% or more; and (2) a proportion of the inorganic particles that are separated from the toner parent particles upon dispersing the toner in an aqueous solution is about 35% or less of a total addition amount of the inorganic particles.

    摘要翻译： 在电子照相显影剂和形成图像的方法中，其中使用的电子照相调色剂含有球形调色剂母体颗粒和两种或更多种具有不同平均粒径的无机颗粒，至少一种无机细颗粒是具有 平均一次粒径为约80〜300nm，将含有球状粒子的无机粒子附着在调色剂母粒上，得到满足下述条件（1）和（2）的结构：（1）球状粒子具有 调色剂母粒子表面上的覆盖率为约20％以上; 和（2）将调色剂分散在水溶液中时与调色剂母体颗粒分离的无机颗粒的比例为无机颗粒总添加量的约35％以下。

    Electrophotographic developer and process for forming image
    6.
    发明授权
    Electrophotographic developer and process for forming image 失效
    电子照相显影剂和形成图像的方法

    公开(公告)号：US06517985B2

    公开(公告)日：2003-02-11

    申请号：US10000302

    申请日：2001-12-04

    申请人： Masahiro Takagi ,  Satoshi Inoue ,  Kaori Ohishi ,  Rieko Kataoka ,  Fusako Kiyono ,  Chiaki Suzuki

    发明人： Masahiro Takagi ,  Satoshi Inoue ,  Kaori Ohishi ,  Rieko Kataoka ,  Fusako Kiyono ,  Chiaki Suzuki

    IPC分类号： G03G908

    CPC分类号： G03G9/0821 ,  G03G9/0819 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/09 ,  G03G9/09708

    摘要： An electrophotographic developer is provided that attains improvement in reliability by improvement in cleaning property and reduction in wear of a photoreceptor in a well-balanced manner without impairing high transfer efficiency and high image quality of a spherical toner. The electrophotographic developer contains a toner and a carrier, the toner containing spherical colored particles having an average shape factor (ML2/A) of about from 100 to 135 and irregular-shaped non-colored particles having a volume average particle diameter of about from 1 to 10 &mgr;m, a charge distribution of the developer having a peak value Q/Ma ascribable to the spherical colored particles and a peak value Q/Mb ascribable to the irregular-shaped non-colored particles, and the peak value Q/Ma and the peak value Q/Mb satisfying both the following formulae (1) and (2): 20 &mgr;C/g≦|Q/Ma|≦85 &mgr;C/g  (1) −0.7 Q/Ma≦Q/Mb≦0.5 Q/Ma  (2).

    摘要翻译： 提供了一种电子照相显影剂，其通过改善清洁性能并且以良好平衡的方式降低感光体的磨损而不损害球形调色剂的高转印效率和高图像质量而提高可靠性。 电子照相显影剂含有调色剂和载体，调色剂含有平均形状因子（ML2 / A）为约100至135的球形着色颗粒和体积平均粒径为约1的不规则形状的无色颗粒 至10μm，具有归属于球形着色颗粒的峰值Q / Ma的显影剂的电荷分布和归因于不规则形状的无色颗粒的峰值Q / Mb，峰值Q / Ma和 满足下列公式（1）和（2）的峰值Q / Mb：

    Method of forming composite color image
    7.
    发明授权
    Method of forming composite color image 有权
    形成复合彩色图像的方法

    公开(公告)号：US08877419B2

    公开(公告)日：2014-11-04

    申请号：US11504685

    申请日：2006-08-16

    申请人： Satoshi Inoue ,  Koutarou Yoshihara ,  Yosuke Tsurumi ,  Moegi Iguchi ,  Masahiro Takagi

    发明人： Satoshi Inoue ,  Koutarou Yoshihara ,  Yosuke Tsurumi ,  Moegi Iguchi ,  Masahiro Takagi

    IPC分类号： G03G13/14 ,  G03G9/113 ,  G03G15/01

    CPC分类号： G03G15/0126 ,  G03G2215/0119 ,  G03G2215/0158

    摘要： The present invention provides a composite color image forming method. The method includes electrically charging a latent image-holding member; exposing the charged latent image-holding member to light to form an electrostatic latent image; developing the electrostatic latent image with a two-component developer containing toner particles of one color and a carrier to form a toner image on the latent image-holding member; primarily transferring the toner image from the latent image-holding member to an intermediate transfer member; repeating the electrically charging, the exposing, the developing, and the primarily transferring, while the toner particles are replaced with toner particles of different color, to form a composite color image on the intermediate transfer member; and secondarily transferring the composite color image from the intermediate transfer member to a recording medium. The carrier contains magnetic substance-dispersed core particles in which a magnetic substance is dispersed in a resin, and a coating layer that coats the surface of each of the magnetic substance-dispersed core particles at a covering rate of 95% or more. In addition, the carrier has a degree of circularity of 0.970 or more. The intermediate transfer member is a belt that has a substrate whose Young's modulus is in the range of 3,000 to 6,500 MPa. During the primary transferring, primary transfer nip pressure is in the range of 8 to 20 gf/cm, and a value (T/P) obtained by dividing a primary transfer current value T (μA) by a processing speed P (mm/sec) is from 0.08 to 0.18.

    摘要翻译： 本发明提供一种复合彩色图像形成方法。 该方法包括对潜像保持部件进行充电; 将带电潜象保持部件曝光，形成静电潜像; 用含有一种颜色的调色剂颗粒和载体的双组分显影剂显影静电潜像，以在潜像保持构件上形成调色剂图像; 主要将调色剂图像从潜像保持部件转印到中间转印部件; 在调色剂颗粒被不同颜色的调色剂颗粒代替时，重复进行充电，曝光，显影和主要转印，以在中间转印部件上形成复合彩色图像; 然后将复合彩色图像从中间转印部件转印到记录介质上。 载体包含磁性物质分散的核心颗粒，其中磁性物质分散在树脂中，以及涂覆层以覆盖率95％或更高覆盖每个磁性物质分散的核心颗粒的表面。 此外，载体的圆形度为0.970以上。 中间转印部件是具有杨氏模量在3,000〜6,500MPa范围内的基板的带。 在一次转印期间，一次转印辊隙压力在8至20gf / cm的范围内，并且通过将一次转印电流值T（μA）除以处理速度P（mm / sec）而获得的值（T / P） ）为0.08〜0.18。

    Carrier for electrostatic latent image development and electrostatic latent image developer
    10.
    发明授权
    Carrier for electrostatic latent image development and electrostatic latent image developer 有权
    用于静电潜像显影的载体和静电潜像显影剂

    公开(公告)号：US08062822B2

    公开(公告)日：2011-11-22

    申请号：US11295502

    申请日：2005-12-07

    申请人： Satoshi Inoue ,  Masahiro Takagi ,  Koutarou Yoshihara

    发明人： Satoshi Inoue ,  Masahiro Takagi ,  Koutarou Yoshihara

    IPC分类号： G03G9/113

    CPC分类号： G03G9/0827 ,  G03G9/1075 ,  G03G9/1133

    摘要： An electrostatic latent image developing carrier is provided which comprises a core particle and a resin coating layer containing conductive particles dispersed therein, the carrier having a volume average particle diameter of 25 to 60 μm and an average degree of circularity of 0.975 or more, wherein the core particle has a BET specific surface area of 0.1 to 0.3 m2/g and an internal void ratio of 10% or less.

    摘要翻译： 提供一种静电潜像显影载体，其包括芯颗粒和包含分散在其中的导电颗粒的树脂涂层，载体的体积平均粒径为25〜60μm，平均圆形度为0.975以上，其中， 芯粒子的BET比表面积为0.1〜0.3m 2 / g，内部空隙率为10％以下。