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    Image forming method
    1.
    发明授权
    Image forming method 有权
    图像形成方法

    公开(公告)号：US07220526B2

    公开(公告)日：2007-05-22

    申请号：US10802096

    申请日：2004-03-15

    申请人： Takeo Oshiba ,  Masao Asano ,  Hiroshi Yamazaki

    发明人： Takeo Oshiba ,  Masao Asano ,  Hiroshi Yamazaki

    IPC分类号： G03G15/08

    CPC分类号： G03G15/751 ,  G03G5/005 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/08711 ,  G03G15/08

    摘要： An image forming method which can provides excellent cleaning property, no occurrence of unusual noise or curling of a blade, and a high quality image. The method includes forming a latent image on a cylindrical electrophotographic photoconductor including a mass additive therein; and developing the latent image with a developer comprising a toner, wherein the toner comprises a ratio (Dv50/Dp50) of a 50% volume particle size (Dv50) to a 50% number particle size (Dp50) of 1.0 to 1.15, a ratio (Dv75/Dp75) of a cumulative 75% volume particle size (Dv75) from a larger volume particle size to a cumulative 75% number particle size (Dp75) from a larger number particle size of 1.0 to 1.20, and the number of toner particles having a particle size of 0.7×(Dp50) or less in an amount of not greater than 10 number %.

    摘要翻译： 可以提供优异的清洁性能，不发生异常噪音或者叶片卷曲的图像形成方法以及高质量的图像。 该方法包括在其中包括质量添加剂的圆柱形电子照相感光体上形成潜像; 并用包含调色剂的显影剂显影潜像，其中调色剂包含50体积粒径（Dv50）与50％数量粒径（Dp50）的比率（Dv50 / Dp50）为1.0-1.15，比率 （Dv75 / Dp75），其具有从较大体积粒径到累积75％数量粒径（Dp75）的累积75％体积粒度（Dv75），其数量较大的粒径为1.0至1.20，调色剂颗粒数 具有不大于10数量％的量的0.7×（Dp50）以下的粒径。

    Image forming method
    2.
    发明申请
    Image forming method 有权
    图像形成方法

    公开(公告)号：US20050202334A1

    公开(公告)日：2005-09-15

    申请号：US10802096

    申请日：2004-03-15

    申请人： Takeo Oshiba ,  Masao Asano ,  Hiroshi Yamazaki

    发明人： Takeo Oshiba ,  Masao Asano ,  Hiroshi Yamazaki

    IPC分类号： G03G15/08

    CPC分类号： G03G15/751 ,  G03G5/005 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/08711 ,  G03G15/08

    摘要： An image forming method which can provides excellent cleaning property, no occurrence of unusual noise or curling of a blade, and a high quality image. The method includes forming a latent image on a cylindrical electrophotographic photoconductor including a mass additive therein; and developing the latent image with a developer comprising a toner, wherein the toner comprises a ratio (Dv50/Dp50) of a 50% volume particle size (Dv50) to a 50% number particle size (Dp50) of 1.0 to 1.15, a ratio (Dv75/Dp75) of a cumulative 75% volume particle size (Dv75) from a larger volume particle size to a cumulative 75% number particle size (Dp75) from a larger number particle size of 1.0 to 1.20, and the number of toner particles having a particle size of 0.7×(Dp50) or less in an amount of not greater than 10 number %.

    摘要翻译： 可以提供优异的清洁性能，不发生异常噪音或者叶片卷曲的图像形成方法以及高质量的图像。 该方法包括在其中包括质量添加剂的圆柱形电子照相感光体上形成潜像; 并用包含调色剂的显影剂显影潜像，其中调色剂包含50体积粒径（Dv50）与50％数量粒径（Dp50）的比率（Dv50 / Dp50）为1.0-1.15，比率 （Dv75 / Dp75），其具有从较大体积粒径到累积75％数量粒径（Dp75）的累积75％体积粒度（Dv75），其数量更大的粒径为1.0至1.20，调色剂颗粒数 具有不大于10数量％的量的0.7×（Dp50）以下的粒径。

    Image forming method
    3.
    发明授权
    Image forming method 失效
    图像形成方法

    公开(公告)号：US5591558A

    公开(公告)日：1997-01-07

    申请号：US604082

    申请日：1996-02-20

    申请人： Hiroshi Yamazaki ,  Takeo Oshiba ,  Yoshihiko Etoh

    发明人： Hiroshi Yamazaki ,  Takeo Oshiba ,  Yoshihiko Etoh

    IPC分类号： G03G9/08 ,  G03G5/047 ,  G03G5/05 ,  G03G5/147 ,  G03G9/087 ,  G03G13/08

    CPC分类号： G03G5/0503 ,  G03G13/08 ,  G03G5/047 ,  G03G5/0592 ,  G03G9/08704

    摘要： An electrostatic image forming method is disclosed. The photoreceptor containing an organic photosensitive material has a layer containing fine particles at the photoreceptor surface; toner has at least binder resin, coloring agent, and releasing agent made of polyolefines in which the ratio, Mz/Mn, is is 3-20, and Mz is 20,000-70,000 wherein Mz is Z-average molecular weight in terms of polypropylene and Mn is the number average molecular weight in terms of polypropylene. No offset phenomenon occurs, and a stable image having no fogging and no black-spots can be formed for a long period of time by the invention.

    摘要翻译： 公开了静电图像形成方法。 含有有机感光材料的感光体在感光体表面具有含有微粒子的层; 调色剂至少具有粘合剂树脂，着色剂和由聚烯烃制成的脱模剂，其中Mz / Mn比为3-20，Mz为20,000-70,000，其中Mz是以聚丙烯换算的Z平均分子量， Mn是以聚丙烯换算的数均分子量。 不发生偏移现象，并且通过本发明可以长时间形成不具有起雾和无黑点的稳定图像。

    Image forming method
    6.
    发明授权
    Image forming method 有权
    图像形成方法

    公开(公告)号：US06861195B2

    公开(公告)日：2005-03-01

    申请号：US10735930

    申请日：2003-12-15

    申请人： Takeo Oshiba ,  Fumitaka Mochizuki ,  Kazuhisa Shida

    发明人： Takeo Oshiba ,  Fumitaka Mochizuki ,  Kazuhisa Shida

    IPC分类号： G03G5/10 ,  G03G5/147 ,  G03G9/08 ,  G03G9/087 ,  G03G13/08 ,  G03G21/00 ,  G03G21/10

    CPC分类号： G03G9/0827 ,  G03G9/0819 ,  G03G13/08 ,  G03G21/0029

    摘要： A method of forming a toner image is disclosed. The photoreceptor is installed so that the center axis of the cylinder is to be almost horizontal, front edge of the cleaning blade is pressed against surface of the photoreceptor at the top, ratio of width of the photosensitive layer of the photoreceptor to length of the cylindrical electroconductive substrate is 80/100 to 99/100, and a number ratio of toner particles having a shape coefficient of 1.2 to 1.6 is at least 65 percent in the toner particles.

    摘要翻译： 公开了形成调色剂图像的方法。 感光体被安装成使得圆筒的中心轴线几乎水平，清洁刮板的前边缘被压在顶部的感光体的表面上，感光体感光层的宽度与圆柱形的长度之比 导电性基材为80/100〜99/100，调色剂颗粒中形状系数为1.2〜1.6的调色剂颗粒数比例为65％以上。

    Electrophotographic photoreceptor
    7.
    发明授权
    Electrophotographic photoreceptor 失效
    电子照相感光体

    公开(公告)号：US5863689A

    公开(公告)日：1999-01-26

    申请号：US602990

    申请日：1996-02-16

    申请人： Yoshiaki Takei ,  Yoshihiko Etoh ,  Asao Matsushima ,  Takeo Oshiba

    发明人： Yoshiaki Takei ,  Yoshihiko Etoh ,  Asao Matsushima ,  Takeo Oshiba

    IPC分类号： G03G5/05 ,  G03G5/06 ,  G03G15/09

    CPC分类号： G03G5/0629 ,  G03G5/0503 ,  G03G5/0517 ,  G03G5/0521 ,  G03G5/0564 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0668 ,  Y10S430/106

    摘要： Disclosed is an electrophotographic photoreceptor comprising an electrically conductive support and thereon formed a light-sensitive layer containing a carrier generation material, a carrier transport material and a binder resin, wherein said light-sensitive layer comprises a copolymer having a structural unit represented by Formula B.sub.1 and Formula B.sub.2 ; ##STR1## wherein R.sub.1 and R.sub.2 independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an aryl group, R.sub.1 and R.sub.2 may combine together to form a cyclic hydrocarbon residue having 4 to 10 carbon atoms, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, a cyclic hydrocarbon residue having 4 to 10 carbon atoms, or an aryl group, l, m, p and q independently represent an integer of 1 to 4. The electrophotographic photoreceptor has high sensitivity and high durability.

    摘要翻译： 公开了一种电子照相感光体，其包含导电性载体，其上形成含有载体生成材料，载体传输材料和粘合剂树脂的感光层，其中所述感光层包含具有由式B1表示的结构单元的共聚物 和式B2; 式B1其中R 1和R 2独立地表示氢原子，具有1至6个碳原子的烷基或芳基，R 1和R 2可以结合在一起形成具有4至 10个碳原子，R 3，R 4，R 5和R 6独立地表示氢原子，卤素原子，碳原子数1〜6的烷基，碳原子数4〜10的环状烃基或芳基， ，p和q独立地表示1〜4的整数。电子照相感光体的灵敏度高，耐久性高。

    Electrophotographic photoreceptor and image forming method
    8.
    发明授权
    Electrophotographic photoreceptor and image forming method 有权
    电子照相感光体和成像方法

    公开(公告)号：US08029955B2

    公开(公告)日：2011-10-04

    申请号：US12361642

    申请日：2009-01-29

    申请人： Eiichi Sakai ,  Yoshihiko Eto ,  Kimiyuki Itou ,  Akihiko Itami ,  Takeo Oshiba

    发明人： Eiichi Sakai ,  Yoshihiko Eto ,  Kimiyuki Itou ,  Akihiko Itami ,  Takeo Oshiba

    IPC分类号： G03G15/00

    CPC分类号： G03G15/751 ,  G03G5/00 ,  G03G5/04 ,  G03G5/0525 ,  G03G5/0696 ,  G03G15/757

    摘要： Provide is an electrophotographic photoreceptor exhibiting excellent evenness of halftone images together with fine line reproduction, and an image forming method thereof, as to a photoreceptor in which an oxytitanium phthalocyanine pigment having a maximum diffraction peak at a Bragg angle (2θ±0.2°) of 27.2° in CuKα X-ray diffraction. Also disclosed is an electrophotographic photoreceptor possessing a body having cylindrical conductive support provided thereon photosensitive layer containing oxytitanium phthalocyanine pigment having maximum diffraction peak at a Bragg angle (2θ±0.2°) of 27.2° in CuKα X-ray diffraction, and flanges jointed at both ends of the body, wherein at least one of flanges is fitted with driving shaft having drive hole having at least 3 sides, and a ratio B/A of cross-sectional area B of engaging part of rotation shaft to rotate the electrophotographic photoreceptor with respect to cross-sectional area A of the drive hole is 0.890-0.998.

    摘要翻译： 提供一种电子照相感光体，其具有优异的半色调图像均匀性以及细线再现及其成像方法，其中具有在布拉格角（2θ;±0.2°）处具有最大衍射峰的氧钛酞菁颜料， 在CuKαX射线衍射中为27.2°。 还公开了一种电子照相感光体，其具有在CuKαX射线衍射中在其上设置有具有最大衍射峰（在布拉格角（2θ±0.2°））为27.2°的最大衍射峰的感光层的感光层，并且接合在 主体的两端，其中至少一个凸缘装配有具有至少3个侧面的驱动孔的驱动轴和旋转轴的接合部分的横截面积B的比率B / A，以使电子照相感光体与 相对于驱动孔的截面积A为0.890-0.998。

    Developing roller and developing method thereof
    9.
    发明申请
    Developing roller and developing method thereof 有权
    显影辊及其显影方法

    公开(公告)号：US20070147907A1

    公开(公告)日：2007-06-28

    申请号：US11585399

    申请日：2006-10-24

    申请人： Kouichi Sugama ,  Nobuaki Kobayashi ,  Takeo Oshiba ,  Okushi Okuyama ,  Satoshi Uchino

    发明人： Kouichi Sugama ,  Nobuaki Kobayashi ,  Takeo Oshiba ,  Okushi Okuyama ,  Satoshi Uchino

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0818 ,  G03G2215/0617

    摘要： Provided are a developing roller for non-magnetic single component development and a developing method employing the developing, by which toner can be stably conveyed in any external environment, and the stable toner conveyance and charging amount can also be acquired. Also disclosed is a developing roller possessing a spindle and provided around an outer circumference of the spindle, at least an elastic layer (innermost layer), a resistance adjusting layer (intermediate layer) formed on the elastic layer and a surface layer (outermost layer) formed on the resistance adjusting layer, wherein the intermediate layer possesses a layer containing carbon black in a resin, a content of a polycyclic aromatic hydrocarbon in the carbon black is at most 10 ppm, and a volume resistance (Rv) of all the layers provided around the outer circumference of the spindle is 1.0×107-1.0×1013 Ω·cm.

    摘要翻译： 提供了一种用于非磁性单组分显影的显影辊和使用显影剂的显影方法，通过该显影辊可以在任何外部环境中稳定地输送调色剂，并且还可以获得稳定的调色剂输送和充电量。 还公开了一种具有心轴的显影辊，至少在弹性层上形成弹性层（最内层），电阻调节层（中间层）和表面层（最外层），围绕心轴外周设置， 形成在电阻调节层上，其中中间层在树脂中具有含有炭黑的层，碳黑中的多环芳烃的含量为至多10ppm，并且提供了所有层的体积电阻（Rv） 围绕心轴的外圆周是1.0×10 -7 -1.0×10 3Ω·cm。