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    Image developer, process cartridge, and image forming apparatus
    1.
    发明授权
    Image developer, process cartridge, and image forming apparatus 失效
    图像显影剂，处理盒和成像装置

    公开(公告)号：US08526864B2

    公开(公告)日：2013-09-03

    申请号：US13071902

    申请日：2011-03-25

    申请人： Shuuichi Nakagawa ,  Chiyoshi Nozaki ,  Hideaki Yasunaga ,  Keiichiro Juri

    发明人： Shuuichi Nakagawa ,  Chiyoshi Nozaki ,  Hideaki Yasunaga ,  Keiichiro Juri

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0808 ,  G03G2215/0634 ,  G03G2215/0869

    摘要： An image developer, including a developer container containing a developer developing a latent image on a latent image bearer; a developer bearer bearing the developer, located close to or contacting the latent image bearer; and a developer feeding and collection roller feeding the developer onto the developer bearer and scraping the developer therefrom, rotating while contacting thereto with pressure, wherein the developer feeding and collection roller includes an inner layer formed of an electroconductive foamed rubber; and an outer layer formed of an insulative foamed rubber, and wherein the following relationship is satisfied: α≧T wherein α represents a compression amount of the pressure of the developer feeding and collection roller to the developer bearer; and T represents a thickness of the outer layer, and wherein an offset voltage having a polarity opposite to that of the charged developer is applied to the developer feeding and collection roller.

    摘要翻译： 一种图像显影剂，包括含有在潜像承载体上显影潜像的显影剂的显影剂容器; 承载显影剂的显影剂承载件位于靠近或接触潜影承载体的位置; 以及显影剂供给和收集辊，其将显影剂供给到显影剂承载体上并刮擦显影剂，同时与其接触压力旋转，其中显影剂供给和收集辊包括由导电泡沫橡胶形成的内层; 和由绝缘发泡橡胶形成的外层，并且其中满足以下关系：α> = T其中α表示显影剂供给和收集辊对显影剂载体的压力的压缩量; 并且T表示外层的厚度，并且其中具有极性与带电显影剂的极性相反的偏移电压被施加到显影剂供给和收集辊。

    IMAGE DEVELOPER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
    2.
    发明申请
    IMAGE DEVELOPER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS 失效
    图像开发者，过程盒和图像形成装置

    公开(公告)号：US20110243616A1

    公开(公告)日：2011-10-06

    申请号：US13071902

    申请日：2011-03-25

    申请人： Shuuichi NAKAGAWA ,  Chiyoshi Nozaki ,  Hideaki Yasunaga ,  Keiichiro Juri

    发明人： Shuuichi NAKAGAWA ,  Chiyoshi Nozaki ,  Hideaki Yasunaga ,  Keiichiro Juri

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0808 ,  G03G2215/0634 ,  G03G2215/0869

    摘要： An image developer, including a developer container containing a developer developing a latent image on a latent image bearer; a developer bearer bearing the developer, located close to or contacting the latent image bearer; and a developer feeding and collection roller feeding the developer onto the developer bearer and scraping the developer therefrom, rotating while contacting thereto with pressure, wherein the developer feeding and collection roller includes an inner layer formed of an electroconductive foamed rubber; and an outer layer formed of an insulative foamed rubber, and wherein the following relationship is satisfied: α≧T wherein α represents a compression amount of the pressure of the developer feeding and collection roller to the developer bearer; and T represents a thickness of the outer layer, and wherein an offset voltage having a polarity opposite to that of the charged developer is applied to the developer feeding and collection roller.

    摘要翻译： 一种图像显影剂，包括含有在潜像承载体上显影潜像的显影剂的显影剂容器; 承载显影剂的显影剂承载件位于靠近或接触潜影承载体的位置; 以及显影剂供给和收集辊，其将显影剂供给到显影剂承载体上并刮擦显影剂，同时与其接触压力旋转，其中显影剂供给和收集辊包括由导电泡沫橡胶形成的内层; 和由绝缘发泡橡胶形成的外层，其中满足以下关系：α≥T其中α表示显影剂供给和收集辊对显影剂载体的压力的压缩量; 并且T表示外层的厚度，并且其中具有极性与带电显影剂的极性相反的偏移电压被施加到显影剂供给和收集辊。

    Developing roller, and developing device, process cartridge and image forming method and apparatus using the developing roller
    3.
    发明授权
    Developing roller, and developing device, process cartridge and image forming method and apparatus using the developing roller 有权
    显影辊，显影装置，处理盒和使用显影辊的成像方法和装置

    公开(公告)号：US09026015B2

    公开(公告)日：2015-05-05

    申请号：US14160652

    申请日：2014-01-22

    申请人： Keiichiro Juri ,  Hideaki Yasunaga ,  Chiyoshi Nozaki

    发明人： Keiichiro Juri ,  Hideaki Yasunaga ,  Chiyoshi Nozaki

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0818

    摘要： A developing roller to bear toner thereon is provided. The developing roller includes a cylindrical electroconductive substrate; an electroconductive elastic layer located on a peripheral surface of the cylindrical electroconductive substrate; and a toner bearing layer located on a peripheral surface of the electroconductive elastic layer. The toner bearing layer includes a polyurethane resin, which is a reaction product of at least an isocyanate compound having an isocyanurate structure and a polyol at a NCO/OH molar ratio of from 90 to 110. The toner bearing layer has a water contact angle of from 135° to 155°, and a static friction coefficient of from 0.10 to 0.15.

    摘要翻译： 提供了一种用于在其上承载调色剂的显影辊。 显影辊包括圆柱形导电基片; 位于圆筒状导电性基材的外周面的导电性弹性层; 以及位于导电弹性层的外周面上的调色剂承载层。 调色剂承载层包括聚氨酯树脂，其是至少具有异氰脲酸酯结构的异氰酸酯化合物和NCO / OH摩尔比为90至110的多元醇的反应产物。调色剂承载层的水接触角为 从135°至155°，静摩擦系数为0.10至0.15。

    DEVELOPING ROLLER, AND DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING METHOD AND APPARATUS USING THE DEVELOPING ROLLER
    4.
    发明申请
    DEVELOPING ROLLER, AND DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING METHOD AND APPARATUS USING THE DEVELOPING ROLLER 有权
    开发滚子，开发设备，过程盒和图像形成方法和使用开发滚子的设备

    公开(公告)号：US20140212184A1

    公开(公告)日：2014-07-31

    申请号：US14160652

    申请日：2014-01-22

    申请人： Keiichiro Juri ,  Hideaki Yasunaga ,  Chiyoshi Nozaki

    发明人： Keiichiro Juri ,  Hideaki Yasunaga ,  Chiyoshi Nozaki

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0818

    摘要： A developing roller to bear toner thereon is provided. The developing roller includes a cylindrical electroconductive substrate; an electroconductive elastic layer located on a peripheral surface of the cylindrical electroconductive substrate; and a toner bearing layer located on a peripheral surface of the electroconductive elastic layer. The toner bearing layer includes a polyurethane resin, which is a reaction product of at least an isocyanate compound having an isocyanurate structure and a polyol at a NCO/OH molar ratio of from 90 to 110. The toner bearing layer has a water contact angle of from 135° to 155°, and a static friction coefficient of from 0.10 to 0.15.

    摘要翻译： 提供了一种用于在其上承载调色剂的显影辊。 显影辊包括圆柱形导电基片; 位于圆筒状导电性基材的外周面的导电性弹性层; 以及位于导电性弹性层的外周面上的调色剂承载层。 调色剂承载层包括聚氨酯树脂，其是至少具有异氰脲酸酯结构的异氰酸酯化合物和NCO / OH摩尔比为90至110的多元醇的反应产物。调色剂承载层的水接触角为 从135°至155°，静摩擦系数为0.10至0.15。

    Developing roller including a roughened outermost surface, and developing device and image forming apparatus including the same
    8.
    发明授权
    Developing roller including a roughened outermost surface, and developing device and image forming apparatus including the same 有权
    包括粗糙化的最外表面的显影辊，以及包括该表面的显影装置和图像形成装置

    公开(公告)号：US09031478B2

    公开(公告)日：2015-05-12

    申请号：US13599729

    申请日：2012-08-30

    申请人： Keiichiro Juri ,  Hideaki Yasunaga

    发明人： Keiichiro Juri ,  Hideaki Yasunaga

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0818 ,  G03G2215/0863

    摘要： A developing roller includes a core metal and an elastic layer formed on an outer circumference of the core metal. An outermost surface of the developing roller is roughened. A difference between a maximum value and a minimum value of an indentation power of the outermost surface is 10% to 21%, wherein the indentation power is measured by a micro-indentation test at 120 locations spaced 3 degrees apart on a circumference of the developing roller, which is at a center of the developing roller with respect to a longitudinal direction. A developing device and an image forming apparatus each include the developing roller.

    摘要翻译： 显影辊包括芯金属和形成在芯金属的外周上的弹性层。 显影辊的最外表面被粗糙化。 最外表面的压痕力的最大值和最小值之间的差为10％〜21％，其中压痕功率通过在显影剂的周长上间隔开3度的120个位置处的微压痕测试来测量 辊位于显影辊相对于纵向方向的中心。 显影装置和图像形成装置均包括显影辊。