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    • 8. 发明授权
    • Electrophotographic photoreceptor, image forming apparatus, and method for image formation
    • 电子照相感光体,图像形成装置和图像形成方法
    • US08354212B2
    • 2013-01-15
    • US12988770
    • 2009-09-17
    • Hirofumi HayataTakeshi IshidaMasahiko KurachiToshiyuki FujitaSeisuke MaedaSeijiro Takahashi
    • Hirofumi HayataTakeshi IshidaMasahiko KurachiToshiyuki FujitaSeisuke MaedaSeijiro Takahashi
    • G03G15/02
    • G03G5/14791G03G5/14704G03G5/14786
    • Disclosed is an electrophotogaphic photoreceptor that causes little or no abrasion-derived uneven image density and does not cause scratches and image defects attributable to the occurrence of scratches even after a large volume, for example, exceeding 1,000,000 sheets of printing, and that does not cause image blurring even after printing in an environment of a high-temperature and a high-relative humidity (RH) respectively exceeding 30° C. and 80%. The electrophotographic photoreceptor comprises an electroconductive support and at least a photosensitive layer and a surface layer provided on the electroconductive support and is characterized in that the surface layer contains at least a compound obtained by reacting a polymerizable compound containing a methacryl group with particles containing a functional group reactive with the methacryl group and, in the polymerizable compound, the ratio between the number of methacryl groups and the molecular weight (number of methacryl groups/molecular weight) is not less than 0.0055.
    • 公开了几乎不产生或不产生磨损的不均匀图像浓度的电子照相感光体,即使在大体积(例如)超过1,000,000张印刷后也不会引起由于划痕的发生而引起的划痕和图像缺陷,并且不会引起 甚至在分别超过30℃和80%的高温和高相对湿度(RH)的环境下进行印刷后的图像模糊。 电子照相感光体包含导电性支持体和至少一层感光层和设置在导电性载体上的表面层,其特征在于,表面层至少含有通过使包含甲基丙烯酰基的聚合性化合物与含有官能团 与甲基丙烯酰基反应的基团,并且在聚合性化合物中,甲基丙烯酰基的数量与分子量(甲基丙烯酰基的数量/分子量)的比例为0.0055以上。
    • 9. 发明申请
    • Electrophotographic Photoreceptor, Image Forming Apparatus, and Method for Image Formation
    • 电子照相光感受器,成像装置和图像形成方法
    • US20110038651A1
    • 2011-02-17
    • US12988770
    • 2009-09-17
    • Hirofumi HayataTakeshi IshidaMasahiko KurachiToshiyuki FujitaSeisuke MaedaSeijiro Takahashi
    • Hirofumi HayataTakeshi IshidaMasahiko KurachiToshiyuki FujitaSeisuke MaedaSeijiro Takahashi
    • G03G15/02
    • G03G5/14791G03G5/14704G03G5/14786
    • Disclosed is an electrophotogaphic photoreceptor that causes little or no abrasion-derived uneven image density and does not cause scratches and image defects attributable to the occurrence of scratches even after a large volume, for example, exceeding 1,000,000 sheets of printing, and that does not cause image blurring even after printing in an environment of a high-temperature and a high-relative humidity (RH) respectively exceeding 30° C. and 80%. The electrophotographic photoreceptor comprises an electroconductive support and at least a photosensitive layer and a surface layer provided on the electroconductive support and is characterized in that the surface layer contains at least a compound obtained by reacting a polymerizable compound containing a methacryl group with particles containing a functional group reactive with the methacryl group and, in the polymerizable compound, the ratio between the number of methacryl groups and the molecular weight (number of methacryl groups/molecular weight) is not less than 0.0055.
    • 公开了几乎不产生或不产生磨损的不均匀图像浓度的电子照相感光体,即使在大体积(例如)超过1,000,000张印刷后也不会引起由于划痕的发生而引起的划痕和图像缺陷,并且不会引起 甚至在分别超过30℃和80%的高温和高相对湿度(RH)的环境下进行印刷后的图像模糊。 电子照相感光体包含导电性支持体和至少一层感光层和设置在导电性载体上的表面层,其特征在于,表面层至少含有通过使包含甲基丙烯酰基的聚合性化合物与含有官能团 与甲基丙烯酰基反应的基团,并且在聚合性化合物中,甲基丙烯酰基的数量与分子量(甲基丙烯酰基的数量/分子量)的比例为0.0055以上。