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45 条记录 (耗时 0.035 秒)

    Process cartridge and electrophotographic apparatus having an intermediate transfer belt
    1.
    发明授权
    Process cartridge and electrophotographic apparatus having an intermediate transfer belt 失效
    具有中间转印带的处理盒和电子照相设备

    公开(公告)号：US06795667B2

    公开(公告)日：2004-09-21

    申请号：US10231352

    申请日：2002-08-30

    申请人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda ,  Yuji Sakurai

    发明人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda ,  Yuji Sakurai

    IPC分类号： G03G1500

    CPC分类号： G03G21/181 ,  G03G15/1605 ,  G03G21/1821 ,  G03G2215/0177 ,  G03G2221/1642

    摘要： A process cartridge which is detachably mountable to a main body of an electrophotographic apparatus, includes an electrophotographic photosensitive member to carry a toner image; an intermediate transfer belt having a contact part with the photosensitive member, and a primary transfer unit to primarily transfer the toner image at the contact part from the photosensitive member to the intermediate transfer belt, being integrally supported in one body. After the contact part is formed by the photosensitive member and the intermediate transfer belt is brought into contact with under a linear pressure of 0.5 N/cm and is left for 10 hours in an environment of 45° C./95% RH, differences in the dark portion potential and the light portion potential of the photosensitive member between the contact part and the non-contact part of the photosensitive member are respectively less than 20%, and no crack having a length of not less than 1 mm occurs in any of the surfaces of the photosensitive member and the intermediate transfer belt. An electrophotographic apparatus having the process cartridge is also disclosed.

    摘要翻译： 可拆卸地安装到电子照相设备的主体的处理盒包括用于承载调色剂图像的电子照相感光构件; 具有与感光构件接触部分的中间转印带以及主要转印单元，其主要将接触部分上的调色剂图像从感光构件转印到中间转印带上，一体地支撑在一体中。 在接触部分由感光部件形成之后，中间转印带在0.5N / cm的线性压力下接触并在45℃/ 95％RH的环境中放置10小时， 接触部分和感光部件的非接触部分之间的感光部件的暗部电位和亮部电位分别小于20％，并且不会发生长度不小于1mm的裂纹 感光构件和中间转印带的表面。 还公开了具有处理盒的电子照相设备。

    Process cartridge, electrophotographic apparatus and image forming method
    4.
    发明授权
    Process cartridge, electrophotographic apparatus and image forming method 失效
    处理盒，电子照相设备和图像形成方法

    公开(公告)号：US06725002B2

    公开(公告)日：2004-04-20

    申请号：US10230208

    申请日：2002-08-29

    申请人： Yuji Sakurai ,  Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda

    发明人： Yuji Sakurai ,  Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda

    IPC分类号： G03G2116

    CPC分类号： G03G21/1814 ,  G03G15/162 ,  G03G2215/0177 ,  G03G2221/1642

    摘要： A process cartridge detachably mountable to the electrophotographic apparatus main body, integrally including an electrophotographic photosensitive member to carry a toner image; an intermediate transfer belt having a contact part with the photosensitive member; primary transfer member to primarily transfer the toner image from the photosensitive member to the intermediate transfer belt; and electric charge member to give electric charges in polarity opposite to the polarity of the toner at the time of the primary transfer to the toner on the intermediate transfer belt to return the toner on the intermediate transfer belt to the photosensitive member at the contact part to clean the intermediate transfer belt, wherein the intermediate transfer belt has an average glossiness of 30 to 90; glossiness deviation within 10; average film thickness of 40 to 200 &mgr;m; and film thickness unevenness within ±20% relative to the average film thickness. Also, an electrophotographic apparatus having the process cartridge and an image forming method using the electrophotographic apparatus are disclosed.

    摘要翻译： 可拆卸地安装到电子照相设备主体的处理盒，整体地包括电子照相感光构件以承载调色剂图像; 中间转印带，其具有与感光部件的接触部分; 主转印部件主要将调色剂图像从感光部件转印到中间转印带; 和电荷元件，以在与中间转印带上的调色剂的一次转印时相反的调色剂极性产生电荷，以将中间转印带上的调色剂返回到接触部分处的感光部件 清洁中间转印带，其中中间转印带的平均光泽度为30至90; 光泽偏差在10以内; 平均膜厚40〜200μm; 膜厚不均匀度相对于平均膜厚度在±20％以内。 此外，公开了具有处理盒和使用电子照相设备的图像形成方法的电子照相设备。

    Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship
    5.
    发明授权
    Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship 有权
    用于从具有膜厚度，模具间隙关系的模压挤出薄膜制造带状构件的方法

    公开(公告)号：US06592803B2

    公开(公告)日：2003-07-15

    申请号：US09750165

    申请日：2000-12-29

    申请人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda

    发明人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda

    IPC分类号： B29C4904

    CPC分类号： G03G15/65 ,  B29C47/0023 ,  B29C47/065 ,  B29C47/26 ,  B29C47/263 ,  B29K2995/0005 ,  B29L2009/00 ,  B29L2031/7092 ,  G03G15/162 ,  G03G2215/00683 ,  Y10T428/24802

    摘要： A process produces a belt-shaped member to be used in an image-forming apparatus is disclosed in which a toner image held on a latent-image-bearing member is electrostatically transferred under application of a voltage via the belt-shaped transfer member. The process includes the steps of melt-extruding a material containing a thermoplastic resin, from a circular die into a cylindrical film; forming the resultant cylindrical film by stretching in such a way that the cylindrical film comes to have a thickness smaller than the die gap of the circular die; and cutting the cylindrical film thus formed, into a seamless belt having a thickness of from 40 &mgr;m to 300 &mgr;m and a modulus in tension of 600 MPa or higher. The stretched cylindrical film is formed to have a thickness not larger than ⅓ of the die gap of the circular die. A belt-shaped transfer member may be produced by the above-described process. The so-produced belt-shaped transfer member is usable as a transfer belt in an image-forming apparatus in which a toner image held on a latent-image-bearing member is electrostatically transferred under application of a voltage via the belt-shaped transfer member.

    摘要翻译： 公开了一种在图像形成装置中使用的带状构件，其中保持在潜像承载构件上的调色剂图像经由带状转印构件施加电压而被静电转印。 该方法包括将包含热塑性树脂的材料从圆形模头熔融挤出成圆筒形薄片的步骤; 通过使圆柱形薄膜的厚度比圆形模具的模具间隙小的方式进行拉伸来形成所得到的圆柱形薄膜; 并将由此形成的圆筒形薄膜切割成厚度为40μm至300μm，张力模量为600MPa或更高的无缝带。 拉伸的圆筒形薄膜形成为不大于圆形模头的模具间隙的1/3的厚度。 可以通过上述方法制造带状转印构件。 所生产的带状转印部件可用作图像形成装置中的转印带，其中保持在潜像承载部件上的调色剂图像经由带状转印部件施加电压而静电转印 。

    Process cartridge, electrophotographic apparatus and image-forming method
    8.
    发明授权
    Process cartridge, electrophotographic apparatus and image-forming method 失效
    处理盒，电子照相设备和图像形成方法

    公开(公告)号：US06718148B2

    公开(公告)日：2004-04-06

    申请号：US10152561

    申请日：2002-05-23

    申请人： Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidehiko Matsuda ,  Yuji Sakurai

    发明人： Hiroyuki Kobayashi ,  Akihiko Nakazawa ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidehiko Matsuda ,  Yuji Sakurai

    IPC分类号： G03G2118

    CPC分类号： G03G21/1817 ,  G03G2215/0177

    摘要： A process cartridge integrally supports an electrophotographic photosensitive member, an intermediate transfer belt, primary transferer for transferring a toner image primarily from the member to the belt, a charge provider for providing the toner on the belt with electric charges having a polarity reverse to the polarity the toner has at the time of the primary transfer and returning the toner on the belt to the member at a contact zone to clean the belt, and an electrophotographic-photosensitive-member cleaner. The cartridge is dividable into an electrophotographic photosensitive member unit and an intermediate transfer belt unit and has a joining unit which joins the two units. The peripheral length and average thickness of the belt and the diameter of at least one of rollers over and around which the belt is placed satisfy specific conditions.

    摘要翻译： 处理盒一体地支撑电子照相感光构件，中间转印带，用于将调色剂图像主要从构件转印到带的主要传送器，用于在带上提供具有与 在一次转印时调色剂的极性和带上的调色剂返回到接触区的构件以清洁带，以及电子照相感光构件清洁剂。 墨盒可分为电子照相感光构件单元和中间转印带单元，并具有连接两个单元的接合单元。 带的周长和平均厚度以及带的至少一个辊的直径位于其周围和周围，满足特定条件。