Imaging member
    32.
    发明授权
    Imaging member 有权
    成像成员

    公开(公告)号:US07527905B2

    公开(公告)日:2009-05-05

    申请号:US11425179

    申请日:2006-06-20

    申请人: Robert C. U. Yu

    发明人: Robert C. U. Yu

    IPC分类号: G03G15/04

    摘要: An imaging member comprising a charge generating layer, a charge transport layers and an optional barrier layer between the charge generating layer and the charge transport layer. The charge transport layer may comprise a first and a second or more layers, wherein the first layer comprises a film-forming polymer having hole-transporting capability, but does not contain charge transport molecules. The barrier layer and/or the first charge transport layer reduces or prevents the buildup of charge transport molecules along the surface of the charge generating layer to thereby suppress the development of charge-deficient spots (CDS) defects in the imaging print-out copies from the imaging member.

    摘要翻译: 一种成像构件,包括电荷产生层,电荷传输层和电荷产生层和电荷传输层之间的任选的势垒层。 电荷输送层可以包括第一层和第二层或更多层,其中第一层包含具有空穴传输能力但不含电荷传输分子的成膜聚合物。 阻挡层和/或第一电荷输送层减少或阻止沿着电荷产生层的表面的电荷传输分子的积累,从而抑制成像打印副本中的电荷缺陷点(CDS)缺陷的发展 成像构件。

    Imaging members
    34.
    发明授权
    Imaging members 失效
    成像成员

    公开(公告)号:US07291428B2

    公开(公告)日:2007-11-06

    申请号:US11611555

    申请日:2006-12-15

    IPC分类号: G03G5/047

    摘要: An electrophotographic imaging member having a charge generating layer and a charge transport layer overlayed thereon is provided. The charge transport layer has a lower surface and an upper surface, wherein the lower surface is in contiguous contact with the charge generating layer. The charge transport layer comprises a film forming polymer binder and a charge transport compound molecularly dispersed or dissolved therein to form a solid solution. The concentration of the charge transport compound in the charge transport layer decreases from the lower surface to the upper surface. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improved wear resistance, excellent imaging member electrical performance, and improved copy print out quality.

    摘要翻译: 提供具有覆盖在其上的电荷产生层和电荷输送层的电子照相成像构件。 电荷输送层具有下表面和上表面,其中下表面与电荷产生层连续接触。 电荷输送层包括成膜聚合物粘合剂和分子分散或溶解在其中以形成固溶体的电荷输送化合物。 电荷输送化合物在电荷输送层中的浓度从下表面向上表面减小。 在这种结构中,所得到的电荷输送层表现出增强的开裂抑制,改善的耐磨性,优异的成像构件的电性能,以及改善的复制印刷质量。