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17 条记录 (耗时 0.027 秒)

    Charging system, process cartridge and image forming apparatus
    1.
    发明授权
    Charging system, process cartridge and image forming apparatus 失效
    充电系统，处理盒和成像设备

    公开(公告)号：US06741824B2

    公开(公告)日：2004-05-25

    申请号：US10418219

    申请日：2003-04-18

    申请人： Masaki Ojima ,  Noboru Kashimura ,  Keiji Okano ,  Junichi Kato

    发明人： Masaki Ojima ,  Noboru Kashimura ,  Keiji Okano ,  Junichi Kato

    IPC分类号： C03G1502

    CPC分类号： G03G15/0216

    摘要： An image forming apparatus has an image bearing member; and a charging member forming a nip with the image bearing member to charge the image bearing member. Conductive particles are provided in the nip and a time factor &agr; represented by a following equation satisfies a condition &agr;>15: &agr;=2&pgr;·k·Nc·(W/Vc)/(&rgr;·Cd·Z) Z=−0.5·1n(&pgr;·k·Nc)−1n({square root over (&bgr;)}·D/2) (&bgr;=1.1932) in which &rgr; (&OHgr;) represents a surface resistivity of said image bearing member; Cd (F/mm2) represents an electrostatic capacitance of the image bearing member; D (mm) represents a diameter of the conductive particle; Nc (particle/mm2) represents a density of the conductive particles present on the charging member; Vc (mm/sec) represents a surface moving speed of the charging member; Vd (mm/sec) represents a surface moving speed of the image bearing member; k=Vc/Vd; and W (mm) represents a width of the nip in the moving direction of the image bearing member.

    摘要翻译： 图像形成装置具有图像承载部件; 以及与图像承载部件形成辊隙以对图像承载部件充电的充电部件。 在辊隙中提供导电颗粒，由下式表示的时间因子α满足条件α> 15：其中rho（Ω）表示所述图像承载部件的表面电阻率; Cd（F / mm 2）表示图像承载部件的静电电容; D（mm）表示导电粒子的直径; Nc（粒子/ mm 2）表示充电部件上存在的导电粒子的密度; Vc（mm / sec）表示充电部件的表面移动速度; Vd（mm / sec）表示图像承载部件的表面移动速度; k = Vc / Vd; W（mm）表示图像承载部件的移动方向上的辊隙的宽度。

    Electrophotographic apparatus
    6.
    发明授权
    Electrophotographic apparatus 失效
    电子照相设备

    公开(公告)号：US5923925A

    公开(公告)日：1999-07-13

    申请号：US841637

    申请日：1997-04-30

    申请人： Kazushige Nakamura ,  Akio Maruyama ,  Noboru Kashimura ,  Shoji Amamiya

    发明人： Kazushige Nakamura ,  Akio Maruyama ,  Noboru Kashimura ,  Shoji Amamiya

    IPC分类号： G03G5/147 ,  G03G15/00

    CPC分类号： G03G5/14708 ,  G03G5/14704 ,  G03G5/14765 ,  G03G5/14791

    摘要： An electrophotographic apparatus has an electrophotographic photosensitive member having a photosensitive layer on an electroconductive support, a charging means provided in contact with the photosensitive member, and image exposure means, a development means, and an image transfer means. The electrophotographic photosensitive member has a surface layer containing electroconductive particles having particle surface treated with a fluorine-containing compound, and a binder resin.

    摘要翻译： 电子照相设备具有在导电支持体上具有感光层的电子照相感光构件，与感光构件接触的充电装置，以及图像曝光装置，显影装置和图像转印装置。 电子照相感光构件具有包含用含氟化合物进行颗粒表面处理的导电颗粒的表面层和粘合剂树脂。

    Toner image transfer method
    8.
    发明授权
    Toner image transfer method 失效
    墨粉图像传输方式

    公开(公告)号：US5480759A

    公开(公告)日：1996-01-02

    申请号：US425355

    申请日：1995-04-19

    申请人： Takashige Kasuya ,  Noboru Kashimura ,  Tatsuya Nakamura ,  Tatsuhiko Chiba ,  Kohji Inaba

    发明人： Takashige Kasuya ,  Noboru Kashimura ,  Tatsuya Nakamura ,  Tatsuhiko Chiba ,  Kohji Inaba

    IPC分类号： G03G5/05 ,  G03G5/087 ,  G03G5/14 ,  G03G5/147 ,  G03G13/08 ,  G03G15/00 ,  G03G13/22 ,  G03G13/16

    CPC分类号： G03G15/75 ,  G03G13/08 ,  G03G5/0514 ,  G03G5/0517 ,  G03G5/0539 ,  G03G5/0578 ,  G03G5/087 ,  G03G5/14704 ,  G03G5/14726 ,  G03G5/14773 ,  G03G5/0546 ,  G03G5/0564 ,  G03G5/142 ,  G03G5/14756

    摘要： An electrophotographic toner showing a good fixability onto recording paper is constituted by at least a binder resin and a colorant, the binder resin comprising a resin component having a polar group, the binder resin having a molecular weight distribution according to gel permeation chromatography including a peak in a molecular weight region of 5.times.10.sup.3 -5.times.10.sup.4. The toner is used to develop an electrostatic image formed on a electrophotographic photosensitive member including at least an electroconductive support, a charge generation layer and a charge transport layer, and the resultant toner image is transferred onto a recording medium without difficulties such as occurrence of cracks on the photosensitive member or inferior transferability by using a photosensitive member having a surface layer containing a transition metal atom at 0.1-10 ppm. The surface of the photosensitive member may preferably show a fluorine atom/carbon atom (F/C) ratio or/and a silicon atom/carbon atom (Si/C) ratio, respectively, of 0.03-1.0 as measured by X-ray photoelectron spectroscopy.

    摘要翻译： 显示在记录纸上的良好定影性的电子照相调色剂由至少粘合剂树脂和着色剂构成，粘合剂树脂包含具有极性基团的树脂组分，粘合剂树脂具有根据凝胶渗透色谱法的分子量分布，包括峰 在5×10 3〜5×10 4的分子量范围内。 调色剂用于显影形成在电子照相感光构件上的静电图像，其至少包括导电性支持体，电荷产生层和电荷输送层，并且将所得到的调色剂图像转印到记录介质上，没有发生裂纹的困难 通过使用具有含有0.1-10ppm的过渡金属原子的表面层的感光构件，在感光构件上具有较差的转印性。 感光构件的表面可以优选地表现出通过X射线光电子测量的0.03-1.0的氟原子/碳原子（F / C）比或/和硅原子/碳原子（Si / C）比 光谱学。