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    DEVELOPMENT DEVICE, AND ELECTROPHOTOGRAPHIC IMAGE FORMATION DEVICE
    2.
    发明公开
    DEVELOPMENT DEVICE, AND ELECTROPHOTOGRAPHIC IMAGE FORMATION DEVICE 审中-公开
    ENTWICKLUNGSVORRICHTUNG ELEKTROFOTOGRAFISCHE BILDERZEUGUNGSVORRICHTUNG

    公开(公告)号：EP2869128A1

    公开(公告)日：2015-05-06

    申请号：EP12880129.7

    申请日：2012-10-18

    申请人： Canon Kabushiki Kaisha

    发明人： KAWAMURA, Kunimasa ,  NAKAMURA, Minoru ,  URUSHIHARA, Shohei ,  YAMADA, Masaki ,  KATSUTA, Yasushi

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0806 ,  G03G9/00 ,  G03G9/0821 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/0818

    摘要： Provided are a development device in which it is possible to reduce the occurrence of fogging in a low temperature environment, and an electrophotographic image formation device with which it is possible to stably form an image over a long period of time. The development device has a toner (1), a development roller (2), and a toner restriction member. The toner (1) satisfies the following conditions: 40≤Z(25)≤80 and 10≤Z(10)≤55 (wherein Z(Y) represents the percentile of (X 3(Y) -X 4(Y) ) relative to X 3(Y) at Y°C, X 3(Y) represents the displacement amount obtained after displacement amount (X 2(Y) ) is left to stand for 0.1 seconds, X 2(Y) represents the displacement amount when a 2.94×10 -4 N load is applied at 9.8×10 -5 N/sec, and X 4(Y) represents the displacement amount at 0N when the load is reduced by 9.8×10 -5 N/sec); 0.49×10 -3 ≤R(25)≤1.70×10 -3 (wherein R(25) represents the tilt from the starting point to the maximum load in the load displacement curve of the toner at 25°C); and 15°C≤(P1-TgA)≤70°C (wherein TgA represents a glass transition temperature between 40 and 60°C, and P1 represents the maximum heat absorption peak temperature between 70 and 110°C). The development roller (2) has a surface layer containing a urethane resin, wherein the urethane resin has at least one of the structures selected from among (a), and (b) and (c).

            -CH 2 -CH 2 -CH 2 -CH 2 -O-     Structural formula (a)

    摘要翻译： 提供了可以减少在低温环境中发生雾化的显影装置，以及可以长时间稳定地形成图像的电子照相图像形成装置。 显影装置具有调色剂（1），显影辊（2）和调色剂限制部件。 调色剂（1）满足以下条件：40‰¤Z（25）‰¤80和10‰¤Z（10）‰¤55（其中Z（Y）表示（X 3（Y）-X 4 （Y））相对于X 3（Y），X 3（Y）表示位移量（X 2（Y））得到的位移量为0.1秒后，X 2（Y）表示 在9.8×10 -5 N /秒时施加2.94×10 -4 N负载时的位移量，X 4（Y）表示当负载降低9.8×10 -5 N /秒时的0N的位移量 ）; 0.49×10 -3‰¤R（25）‰1.70×10 -3（其中R（25）表示在25℃下调色剂的载荷位移曲线中从起始点到最大载荷的倾斜度）; 和15℃‰（P1-TgA）‰¤70℃（其中TgA表示玻璃化转变温度在40至60℃之间，P1表示70至110℃之间的最大吸热峰温度）。 显影辊（2）具有包含聚氨酯树脂的表面层，其中所述聚氨酯树脂具有从（a）和（b）和（c）中选择的至少一种结构。 €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-CH 2 -CH 2 -CH 2 -CH 2¬€ƒ€ƒ€ƒƒ结构公式（a）

    DEVELOPING ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
    4.
    发明公开
    DEVELOPING ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS 有权
    显影辊，处理盒和电动拍照装置

    公开(公告)号：EP2660657A1

    公开(公告)日：2013-11-06

    申请号：EP11852903.1

    申请日：2011-12-16

    申请人： Canon Kabushiki Kaisha

    发明人： YAMADA, Masaki ,  KUSABA, Takashi ,  KAWAMURA, Kunimasa ,  SAKURAI, Yuji ,  ISHII, Toru

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0818 ,  Y10T29/49544

    摘要： A developing roller used for formation of an electrophotographic image with high quality is provided in which even in storage and use under a high temperature and high humidity environment, peel-off of a surface layer from an elastic layer is suppressed, and a toner hardly adheres to the surface of the developing roller.
    The developing roller is a developing roller including a mandrel, an elastic layer provided on the mandrel and containing a cured material of an addition curable-type dimethyl silicone rubber, and a surface layer containing a urethane resin that covers the circumferential surface of the elastic layer, wherein the urethane resin has a structure represented by the following formula (1), and one or both structures selected from a structure represented by the following formula (2) and a structure represented by the following formula (3) between two adjacent urethane linkages.

             ―CH 2 -CH 2 -CH 2 -CH 2 -O―      formula (1)

    PROCESS FOR MANUFACTURE OF REGENERATED ELASTIC ROLLER
    5.
    发明公开
    PROCESS FOR MANUFACTURE OF REGENERATED ELASTIC ROLLER 有权
    VERFAHREN ZUR HERSTELLUNG EINER REGENERIERTEN ELASTISCHEN ROLLE

    公开(公告)号：EP2624067A1

    公开(公告)日：2013-08-07

    申请号：EP11828395.1

    申请日：2011-09-27

    申请人： Canon Kabushiki Kaisha

    发明人： KAWAMURA, Kunimasa ,  KUSABA, Takashi ,  URUSHIHARA, Shohei

    IPC分类号： G03G15/08 ,  G03G15/00

    CPC分类号： G03G15/0233 ,  B29C73/30 ,  G03G2215/0634 ,  G03G2215/1614 ,  G03G2215/2048 ,  G03G2221/0005

    摘要： There is provided a process for producing a regenerated elastic roller which can be again used for the formation of high-quality electrophotographic images by sufficiently relaxing a compression set of the elastic roller having the compression set caused in an elastic layer in usage. The process for producing a regenerated elastic roller includes a step of heating an elastic roller having a conductive mandrel and an elastic layer and having a compression set caused in the elastic layer, in a cylindrical mold to thermally expand the elastic layer and to cause a surface of the elastic roller to contact an inner wall of the cylindrical mold.

    摘要翻译： 提供了一种生产再生弹性辊的方法，其可以通过充分放松在使用中由弹性层引起的具有压缩永久变形的弹性辊的压缩组而再次用于形成高质量的电子照相图像。 再生弹性辊的制造方法包括在圆筒状的模具中加热具有导电性心轴和弹性层的弹性层并具有在弹性层中产生的压缩永久变形的弹性辊的步骤，使弹性层热膨胀并形成表面 的弹性辊接触圆柱形模具的内壁。

    DEVELOPING MEMBER FOR ELECTROPHOTOGRAPHY, PROCESS FOR PRODUCING THE DEVELOPING MEMBER, PROCESS CARTRIDGE FOR ELECTROPHOTOGRAPHY, AND IMAGE FORMING APPARATUS FOR ELECTROPHOTOGRAPHY
    6.
    发明公开
    DEVELOPING MEMBER FOR ELECTROPHOTOGRAPHY, PROCESS FOR PRODUCING THE DEVELOPING MEMBER, PROCESS CARTRIDGE FOR ELECTROPHOTOGRAPHY, AND IMAGE FORMING APPARATUS FOR ELECTROPHOTOGRAPHY 有权
    DEVELOPMENT元在电摄影，工艺用于生产发展元件，电子拍照处理碳粉盒和成像设备，电力拍摄

    公开(公告)号：EP2244132A1

    公开(公告)日：2010-10-27

    申请号：EP09707505.5

    申请日：2009-01-29

    申请人： Canon Kabushiki Kaisha

    发明人： KAWAMURA, Kunimasa ,  YAMAMOTO, Arihiro ,  ISHIDA, Kazutoshi ,  NAKAMURA, Minoru

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0818 ,  G03G2215/0861 ,  G03G2215/0863 ,  Y10T29/49563

    摘要： To provide an electrophotographic developing member which can both be kept from the sticking of a developer and be kept from being deformed by its contacting members, and can form stable images over a long period of time. An electrophotographic developing member characterized in that its surface layer satisfies the following expressions (1) to (3) where the average crosslinking density in each region of up to 100 nm in depth, from 100 nm to 200 nm in depth and from 200 nm to 300 nm in depth from the surface of the surface layer is represented by C1, C2 and C3 (mol/cm 3 ), respectively: C ⁢ 3 C ⁢ 2 C ⁢ 1 ; C ⁢ 3 × 1.3 ≤ C ⁢ 1 ≤ C ⁢ 3 × 5.0 ;
    and 2.0 × 10 - 4 ≤ C ⁢ 3 ≤ 7.0 × 10 - 4 .

    摘要翻译： 提供一种能够从两者的显影剂的粘着保持并从通过它的接触构件的变形保持电子照相显影部件上，并且可以形成在一段长期稳定的图像。 在为特征的电子照相显影构件那样其表面层SATIS外资企业以下表达式（1）至（3）其中，在深度平均交联密度在深度至多100nm的各区域，从100纳米至200纳米和200纳米至 在从表面层的表面的深度为300nm，通过C1，C2和C3分别（摩尔/厘米3），表示为：¢的C 3

    DEVELOPMENT MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE-FORMING DEVICE
    9.
    发明公开
    DEVELOPMENT MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE-FORMING DEVICE 有权
    ENTWICKLUNGSELEMENT，PROZESSKARTUSCHE UND ELEKTROFOTOGRAFISCHE BILDERZEUGUNGSVORRICHTUNG

    公开(公告)号：EP2816417A1

    公开(公告)日：2014-12-24

    申请号：EP12868465.1

    申请日：2012-10-17

    申请人： Canon Kabushiki Kaisha

    发明人： NAKAMURA, Minoru ,  URUSHIHARA, Shohei ,  KOYANAGI, Takashi ,  KAWAMURA, Kunimasa ,  YAMADA, Masaki

    IPC分类号： G03G15/08 ,  C08L83/05

    CPC分类号： G03G15/0865 ,  G03G15/0818

    摘要： Provided is a developing member capable of suppressing a variation in resistance even when exposed to a high-temperature, high-humidity environment for a long time period. The developing member comprises: a mandrel; an electro-conductive elastic layer provided on a periphery of the mandrel; and a surface layer provided on a surface of the elastic layer, wherein: the elastic layer contains a dimethyl silicone rubber and carbon black; and an amount α of a hydrogen atom bound to a silicon atom of the dimethyl silicone rubber, and an amount β of a hydrogen atom of methyl groups bound to a silicon atom of the dimethyl silicone rubber, satisfy a relationship of 2.5×10 -5 ≤α/β≤1.0×10 -4

    摘要翻译： 即使长期暴露在高温高湿环境下，也能够抑制电阻变化的显影部件。 显影构件包括：心轴; 设置在心轴的周边上的导电弹性层; 以及设置在所述弹性层的表面上的表层，其中：所述弹性层包含二甲基硅橡胶和炭黑; 和与二甲基硅橡胶的硅原子结合的氢原子的量的±，和与二甲基硅橡胶的硅原子结合的甲基的氢原子的量的2满足2.5×10 -5 ‰¤±/²‰¤1.0×10 -4

    METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHY ROLLER
    10.
    发明公开
    METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHY ROLLER 审中-公开
    VERFAHREN ZUR HERSTELLUNG EINER ELEKTROFOTOGRAFIE-ROLLE

    公开(公告)号：EP2518569A1

    公开(公告)日：2012-10-31

    申请号：EP10838889.3

    申请日：2010-12-07

    申请人： Canon Kabushiki Kaisha

    发明人： KAWAMURA, Kunimasa ,  SAKURAI, Yuji ,  URUSHIHARA, Shohei

    IPC分类号： G03G15/08 ,  G03G15/00

    CPC分类号： G03G15/0233 ,  G03G15/0291 ,  G03G15/0818 ,  G03G15/1685 ,  G03G15/2057 ,  G03G21/0058

    摘要： An object of the present invention is to provide a production process of a roller for an electrophotography, having a surface layer the electric resistance of which has been controlled by corona discharge treatment while keeping any pinholes from coming about on the surface. A production process of a roller for an electrophotography, said roller comprising a conductive mandrel and a conductive surface layer comprising a resin and carbon black dispersed in the resin, the process having the following steps (1) to (3): (1) forming a resin layer comprising a resin and carbon black dispersed therein on the circumference of the conductive mandel; (2) attaching silica particles on the surface of the resin layer; and (3) subjecting corona discharge treatment to the surface of the resin layer on which the silica particles are attached.

    摘要翻译： 本发明的目的是提供一种用于电子照相的辊的制造方法，其具有通过电晕放电处理来控制其电阻的表面层，同时保持任何针孔在表面上。 一种用于电子照相的辊的制造方法，所述辊包括导电芯棒和包含分散在树脂中的树脂和炭黑的导电表面层，该方法具有以下步骤（1）至（3）：（1）形成 树脂层，其包含树脂和分散在其中的导电扁圆形的圆周上的炭黑; （2）将二氧化硅颗粒附着在树脂层的表面上; 和（3）对安装有二氧化硅颗粒的树脂层的表面进行电晕放电处理。