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    • 3. 发明授权
    • Electrophotographic photoreceptor, electrophotographic image forming method, and electrophotographic apparatus
    • 电子照相感光体,电子照相成像方法和电子照相设备
    • US07727693B2
    • 2010-06-01
    • US10554099
    • 2004-04-16
    • Kazuya IshidaAkihiro KondohTakatsugu Obata
    • Kazuya IshidaAkihiro KondohTakatsugu Obata
    • G03G5/06
    • G03G5/0616G03G5/0696G03G2215/00957
    • An object of the invention is to provide an electrophotographic photoreceptor showing high responsivity even under a low temperature and low humidity circumstance and capable of compatibilize the decrease of the size and the increase in the image forming speed of an electrophotographic apparatus. In a photosensitive layer of an electrophotographic photoreceptor, oxotitanium phthalocyanine having a crystal form showing a diffraction peak at a Bragg angle 2θ (error: 2θ±0.2°) of 27.2° in an X-ray diffraction spectrum is contained as a charge generating substance, and an enamine compound represented by the general formula for example, the structural formula (1-1) is contained as a charge transporting substance. Accordingly, the electrophotographic photoreceptor showing high responsivity even under a low temperature and low humidity circumstance is realized.
    • 本发明的目的是提供即使在低温和低湿度环境下也显示出高反应性的电子照相感光体,并且能够使电子照相设备的图像形成速度降低和增加。 在电子照相感光体的感光层中,具有在布拉格角2°时具有衍射峰的晶体形状的氧钛酞菁; 含有X射线衍射光谱中的27.2°的误差(误差:2θ=±0.2°)作为电荷产生物质,作为结构式(1-1)所示的通式例示的烯胺化合物,以 电荷输送物质。 因此,即使在低温低湿环境下也能实现高反应性的电子照相感光体。
    • 10. 发明授权
    • Electrophotographic photoreceptor and image forming apparatus having the same
    • 电子照相感光体及其成像装置
    • US07534539B2
    • 2009-05-19
    • US10559187
    • 2004-05-31
    • Takatsugu ObataAkihiro KondohKazuya Ishida
    • Takatsugu ObataAkihiro KondohKazuya Ishida
    • G03G5/047
    • G03G5/0666C07C39/06G03G5/0614
    • An object of the invention is to provide a highly reliable electrophotographic photoreceptor having high sensitivity, excellent in light responsivity, not suffering from lowering of such characteristics even when it is used under a low temperature circumstance or in a high speed electrophotographic process, and with less fatigue degradation upon repetitive use. In a photosensitive layer of an electrophotoreceptor, an enamine compound represented by the following general formula (1), for example, the following structural formula is contained as a charge transporting substance, and further at least one of an antioxidant and a light stabilizer is contained. Accordingly, an electrophotographic photoreceptor excellent in sensitivity and light responsivity in various environments, and with less fatigue degradation upon repetitive use is realized.
    • 本发明的目的是提供一种具有高灵敏度,优异的光响应性的高度可靠的电子照相感光体,即使在低温环境或高速电子照相方法中使用也不会降低这些特性,并且具有较少的 重复使用时的疲劳退化。 在电子感受器的感光层中,含有下列通式(1)表示的烯胺化合物,例如以下结构式作为电荷输送物质,还含有抗氧化剂和光稳定剂中的至少一种 。 因此,实现了在各种环境下灵敏度和光响应性优异并且在重复使用时疲劳降低较少的电子照相感光体。