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    • 5. 发明授权
    • Electrophotography roller
    • 电子照相辊
    • US06953421B2
    • 2005-10-11
    • US10168037
    • 2000-12-13
    • Hidenari TsunemiJun KamiteKeizo AsaokaKenji Kobayashi
    • Hidenari TsunemiJun KamiteKeizo AsaokaKenji Kobayashi
    • C08L83/12F16C13/00G03G15/02G03G15/08G03G15/16
    • C08L83/12G03G15/0233G03G15/0818G03G15/1685G03G2215/0861
    • An electrophotography roller incorporated in an image creating device by the electrophotography comprising a conductive shaft disposed along the center axis, a conductive elastic layer around the shaft, a surface layer on the conductive elastic layer formed concentrically. The JIS A hardness of the conductive elastic layer is 30° or less. The shear modulus of the conductive elastic layer measured in viscoelasticity under the condition of 20° C., 60% PH and 0.1 Hz is 4 105 Pa or more. The width of contact of the roller with another member is sufficiently ensured even under a low pressing pressure. The compression residual strain is small even after the roller is pressed against another member for a long time. If the roller is used as a development roller, a sharp image with less density unevenness due to the residual strain is created.
    • 通过包含沿着中心轴布置的导电轴的电子摄影装置结合在图像产生装置中的电子照相辊,围绕轴的导电弹性层,同心地形成在导电性弹性层上的表面层。 导电性弹性层的JIS A硬度为30°以下。 在20℃,60%PH和0.1Hz的条件下以粘弹性测量的导电弹性层的剪切模量为4×10 5 Pa以上。 即使在低压力下也能充分确保辊与另一构件的接触宽度。 即使在辊被长时间压在另一个部件上之后,压缩残余应变也很小。 如果辊用作显影辊,则产生由于残余应变而具有较小密度不均匀性的清晰图像。