Selective removal of photoreceptor coatings by ultrasonification
    1.
    发明授权
    Selective removal of photoreceptor coatings by ultrasonification 有权
    通过超声波选择性去除感光膜

    公开(公告)号:US06881272B2

    公开(公告)日:2005-04-19

    申请号:US10164676

    申请日:2002-06-06

    IPC分类号: G03G5/00 G03G15/00 B08B3/12

    CPC分类号: G03G15/752 G03G5/005

    摘要: A method for recycling photoconductors is disclosed. In this method, the charge transport layer is selectively removed from the photoconductor without adversely affecting the electrical properties of the charge generating layer. The recycled drum may then be recoated with a new charge transport layer and reused in an electrophotographic process. In this method, the photoconductor to be recycled is placed in a specifically selected solvent, such as a dibasic ester, and is subjected to ultrasonic energy, preferably for a period not to exceed about 15 minutes.

    摘要翻译: 公开了一种回收光电导体的方法。 在该方法中,电荷输送层从光电导体中选择性地去除,而不会不利地影响电荷产生层的电特性。 然后可以用新的电荷输送层重新涂覆再循环的滚筒并在电子照相方法中重复使用。 在该方法中,将待循环的光电导体放置在特定选择的溶剂如二元酯中,并且经受超声能量,优选不超过约15分钟的时间。

    Long life photoconductors
    2.
    发明申请
    Long life photoconductors 审中-公开
    长寿命感光体

    公开(公告)号:US20070134570A1

    公开(公告)日:2007-06-14

    申请号:US11300065

    申请日:2005-12-14

    IPC分类号: G03G5/047

    摘要: A photoconductor with a charge transport layer having about 20-25% by weight of 4-N,N-bis(4-methylphenyl)-amino-benzaldehyde-N′,N′-diphenylhydrazone is in an essentially standard resin binder, such as a polycarbonate resin binder. Electrical characteristics are those of the larger amounts using conventional charge transport agents, and the larger amount of binder provides much improved wear resistance and consequently longer useful life of the photoconductor. Charge transport layers with only the foregoing bis-methyl material do exhibit moderate fatigue upon exposure to light. However, this can be overcome by adding 0.5% or less of a fluorenyl-azine as a light absorber, specifically 9-(p-diethylaminobenzylidenehydrazono)fluorene, in the charge transport layer. No antioxidant is required for electrical stability improvement.

    摘要翻译: 具有电荷输送层的感光体具有约20-25重量%的4-N,N-双(4-甲基苯基) - 氨基 - 苯甲醛-N',N'-二苯基腙,为基本上标准的树脂粘合剂,例如 聚碳酸酯树脂粘合剂。 电气特性是使用常规电荷传输剂的较大量的电特性,并且较大量的粘合剂提供了大大改善的耐磨性并因此延长了光电导体的使用寿命。 仅具有上述双甲基材料的电荷输送层在暴露于光时确实表现出适度的疲劳。 然而,通过在电荷输送层中加入0.5%以下的芴基吖嗪作为光吸收剂,特别是9-(对二乙基氨基亚苄基亚肼基)芴可以克服这一点。 电气稳定性改善无需抗氧化剂。