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    • 2. 发明授权
    • Electrophotographic photoconductor with layer preventing charge injection
    • 具有防止电荷注入的层的电子照相感光体
    • US4822705A
    • 1989-04-18
    • US159748
    • 1988-02-24
    • Toshio FukagaiKiyoshi TaniguchiKatsuichi OhtaMinoru UmedaKayoko Yokoyama
    • Toshio FukagaiKiyoshi TaniguchiKatsuichi OhtaMinoru UmedaKayoko Yokoyama
    • G03G5/14G03G5/024
    • G03G5/142
    • An electrophotographic photoconductor comprising an electroconductive support, an intermediate layer formed thereon, an a photoconductive layer formed on said intermediate layer, which intermediate layer comprises at least one component selected from the group consisting of: (a) monohydric aliphatic alcohol, (b) dihydric aliphatic alcohol, (c) polyethylene glycol, (d) polypropylene glycol, (e) polybutylene glycol, (f) polyethylene glycol monoester and/or polyethylene glycol diester, (g) polyethylene monoether, (h) crown ether, (i) a random or block copolymer having as structure units a hydroxyethylene group and a hydroxypropylene group, and hydroxyl groups at the terminal thereof, and (j) a polymer of a monomer having formula (I) and a copolymer of said monomer and a counterpart monomer: ##STR1## wherein R.sup.1 represents hydrogen or a methyl group; R.sup.2 represents hydrogen, a lower alkyl group or an unsubstituted or substituted aryl group; and n is an integer of 2 to 100.
    • 一种电子照相感光体,包括导电载体,形成在其上的中间层,形成在所述中间层上的光电导层,该中间层包含至少一种选自以下的组分:(a)一元脂族醇,(b)二羟基 脂肪醇,(c)聚乙二醇,(d)聚丙二醇,(e)聚丁二醇,(f)聚乙二醇单酯和/或聚乙二醇二酯,(g)聚乙烯单醚,(h)冠醚,(i) 具有羟基亚乙基和羟基亚丙基的结构单元和末端的羟基的无规或嵌段共聚物,和(j)具有式(I)的单体和所述单体与对应单体的共聚物的聚合物: 图像(I)其中R1表示氢或甲基; R 2表示氢,低级烷基或未取代或取代的芳基; n为2〜100的整数。
    • 4. 发明申请
    • Photoconductor, image forming apparatus, image forming process, and process cartridge
    • 感光体,成像装置,成像处理和处理盒
    • US20050175911A1
    • 2005-08-11
    • US10974814
    • 2004-10-28
    • Nozomu TamotoTatsuya NiimiTetsuro SuzukiKatsuichi Ohta
    • Nozomu TamotoTatsuya NiimiTetsuro SuzukiKatsuichi Ohta
    • G03G5/047G03G5/05G03G5/06G03G5/07G03G15/02
    • G03G5/0592G03G5/0546G03G5/0589G03G5/0696G03G5/071
    • The object of the present invention is to provide a photoconductor that is highly sensitive, stable in image quality under repeated usages, and affords prolonged life. In order attain the object, a photoconductor is provided that comprises a charge generating layer, a charge transporting layer, and a crosslinked charge transporting layer, on an substrate in order, the charge generating layer contains titanyl phthalocyanine crystal particles that exhibit a highest peak at 27.2°, main peaks at 9.4°, 9.6° and 24.0°, a peak at 7.3° as the lowest angle, and with no peaks in a range between 7.3° and 9.4°, and with no peak at 26.3° as Bragg 2θangles (±0.2°) in terms of CuK-α characteristic X-ray wavelength at 1.542 Å, and the averaged primary particle size of the titanyl phthalocyanine crystal particles is 0.25 μm or less, and the crosslinked charge transporting layer contains a reaction product of a radical polymerizable monomer having three or more functionalities and no charge transporting structure and a radical polymerizable compound having one functionality and a charge transporting structure, and the thickness of the crosslinked charge transporting layer is 1 to 10 μm.
    • 本发明的目的是提供一种在重复使用下具有高灵敏度,稳定的图像质量的感光体,并且延长使用寿命。 为了达到该目的,提供了一种光电导体,其包括电荷产生层,电荷输送层和交联的电荷输送层,依次在基板上,电荷产生层含有氧化钛酞菁晶体颗粒,其在 27.2°,主峰在9.4°,9.6°和24.0°,最低角为7.3°的峰值,7.3°和9.4°之间的峰值没有峰值,在26.3°没有峰值作为布拉格二角形 ±0.2°),钛氧酞菁结晶粒子的平均一次粒径为0.25μm以下,交联电荷输送层含有自由基的反应产物 具有三个或更多个官能团和无电荷输送结构的可聚合单体和具有一个官能度和电荷输送结构的自由基聚合性化合物,以及交联的c 输送层为1〜10毫米。
    • 9. 发明授权
    • Image forming method
    • 图像形成方法
    • US07670743B2
    • 2010-03-02
    • US12013891
    • 2008-01-14
    • Katsuichi OhtaTatsuya NiimiNozomu Tamoto
    • Katsuichi OhtaTatsuya NiimiNozomu Tamoto
    • G03G15/06G03G5/14
    • G03G5/0696G03G5/0564G03G5/142G03G5/144G03G5/14704G03G5/14734G03G5/14786G03G5/14791G03G2215/00957
    • An image is formed by projecting an image by way of an image irradiating device onto an image bearing member configured to operate at a linear velocity of at least 300 mm/sec, and which is constructed of(i) an electroconductive substrate having an image bearing surface that has an established surface charge having an electric field intensity of at least 32.1 V/μm which is defined as the ratio of the absolute value (V) of the surface voltage of a non-irradiated portion of the image bearing member at a developing position to the layer thickness of the photosensitive layer (μm), (ii) a charge blocking layer overlying the electroconductive substrate, (iii) a moiré prevention layer overlying the charge blocking layer and (iv) a photosensitive layer overlying the moiré prevention layer consisting essentially of a titanyl phthalocyanine; charging the image bearing member by means of a charging device; irradiating said surface of the image bearing member with plural irradiation beams; developing the latent electrostatic image with a developing device; transferring the developed image by a transfer device configured; and cleaning the image bearing member.
    • 通过图像照射装置将图像投影到构造成以至少300mm / sec的线速度运行的图像承载部件上形成图像,该图像承载部件由(i)具有图像承载体的导电基板 表面电荷具有至少32.1V /μm的电场强度的已建立的表面电荷,其被定义为显影时的图像承载部件的未照射部分的表面电压的绝对值(V) 位置到感光层的层厚度(μm),(ii)覆盖导电衬底的电荷阻挡层,(iii)覆盖电荷阻挡层的莫尔防止层和(iv)覆盖防止莫尔层的感光层, 基本上由钛酞菁组成; 通过充电装置对图像承载部件充电; 用多个照射光照射图像承载部件的所述表面; 用显影装置显影静电潜像; 通过配置的传送装置传送显影图像; 并清洁图像承载部件。