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    Electrophotographic photoreceptor, image forming method, image forming apparatus and process cartridge
    44.
    发明专利
    Electrophotographic photoreceptor, image forming method, image forming apparatus and process cartridge 审中-公开
    电子照相机，图像形成方法，图像形成装置和工艺盒

    公开(公告)号：JP2011007925A

    公开(公告)日：2011-01-13

    申请号：JP2009149694

    申请日：2009-06-24

    Applicant: Konica Minolta Business Technologies Inc ,  コニカミノルタビジネステクノロジーズ株式会社

    Inventor： ITAMI AKIHIKO

    IPC: G03G5/06 ,  G03G5/14 ,  G03G15/00

    CPC classification number: G03G15/751 ,  G03G5/047 ,  G03G5/0517 ,  G03G5/0605 ,  G03G5/0614 ,  G03G5/0696

    Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which prevents deterioration of potential stability due to repeated use associated with photodegradation, with respect to an electrophotographic image of a high-density electrostatic latent image formed on an electrophotographic photoreceptor by exposure with short-wavelength laser light or the like, and which is excellent in memory resistance even in a process in which high transfer performance is required, an image forming method using the electrophotographic photoreceptor, an image forming apparatus and a process cartridge.
    SOLUTION: In the electrophotographic photoreceptor, a charge generating layer includes a titanyl phthalocyanine pigment having a crystal structure exhibiting the following diffraction peaks of Bragg angles 2θ (±0.2°) for a characteristic X-ray of a CuKα radiation (having a wavelength of 1.542 Å): at least a largest diffraction peak at 27.2°, major diffraction peaks at 9.4°, 9.6° and 24.0°, and a diffraction peak of a lowest angle at 7.3°, while exhibiting no peak between the peaks of 7.3° and 9.4° and no peak at 26.3°.
    COPYRIGHT: (C)2011,JPO&INPIT

    Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
    46.
    发明专利
    Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus 有权
    电子感光元件，工艺盒和电子照相设备

    公开(公告)号：JP2008233928A

    公开(公告)日：2008-10-02

    申请号：JP2008123372

    申请日：2008-05-09

    Applicant: Canon Inc ,  キヤノン株式会社

    Inventor： TANAKA MASATO ,  KAWAHARA MASATAKA ,  FUJII JUNJI ,  ISHIZUKA YUKA

    IPC: G03G5/14 ,  G03G5/05 ,  G03G5/06

    CPC classification number: G03G5/144 ,  G03G5/0517 ,  G03G5/0542 ,  G03G5/0571 ,  G03G5/0601 ,  G03G5/0609 ,  G03G5/0679 ,  G03G5/0696 ,  G03G5/0698 ,  G03G5/142

    Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photosensitive member capable of outputting an image in which a defect such as a ghost is suppressed even in a high-temperature-and-high-humidity environment, and in which a defect such as a change in density due to an abrupt change in light-area potential at an initial state or a ghost due to long-term durable use is suppressed even in a low-humidity environment; and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member.
    SOLUTION: The electrophotographic photosensitive member has a support, a charge-generating layer comprising a charge-generating material disposed on the support, and a charge-transport layer comprising a charge-transport material disposed on the charge-generating layer, wherein the electrophotographic photosensitive member has a layer comprising a compound having a structure represented by formula (2) between the support and the charge-generating layer. In the formula (2), Ar1 and Ar2 each independently denote a substituted or unsubstituted aryl group; X2 denotes a vinylene group or a p-phenylene group; and n denotes 0 or 1.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：为了提供能够输出即使在高温高湿环境下甚至抑制诸如重影等缺陷的图像的电子照相感光构件，并且其中缺陷如 即使在低湿度环境下也抑制了初始状态下的光区电位的突然变化或长期耐久使用时的重影的密度变化， 以及各自具有电子照相感光构件的处理盒和电子照相设备。 电解光感光构件具有载体，电荷产生层，其包含设置在载体上的电荷产生材料，以及包含设置在电荷产生层上的电荷传输材料的电荷传输层，其中 电子照相感光构件具有在载体和电荷产生层之间具有由式（2）表示的结构的化合物的层。 在式（2）中，Ar 1和Ar 2各自独立地表示取代或未取代的芳基; X2表示亚乙烯基或对亚苯基; n表示0或1.版权所有（C）2009，JPO＆INPIT

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