Photoconductor for electrophotography and method of manufacturing and
using a photoconductor

    公开(公告)号:US6110631A

    公开(公告)日:2000-08-29

    申请号:US078673

    申请日:1998-05-14

    CPC classification number: G03G5/08207

    Abstract: There is disclosed a photoconductor for use in an electrophotographic apparatus. The photoconductor includes a conductive substrate and a photoconductive layer formed on the conductive substrate. The photoconductive layer includes an As.sub.2 Se.sub.3 alloy containing 36% to 40% by weight of As and doped with 1,000 to 20,000 parts per million of iodine. A method of manufacturing a photoconductor is also disclosed, which includes forming a photoconductive layer by vapor deposition on a conductive substrate and thermally treating the photoconductive layer at a temperature between 100 and 200 degrees Celsius for a period between 30 and 80 minutes. Advantageously, the photoconductor of the present invention is able to provide high quality images at high printing speeds.

    Magnetic carrier developer comprising the carrier for developing latent
electrostatic images electrophotographic photoconductor and image
formation method using the same
    32.
    发明授权
    Magnetic carrier developer comprising the carrier for developing latent electrostatic images electrophotographic photoconductor and image formation method using the same 失效
    包含用于显影静电潜像电摄影光电导体的载体的磁性载体显影剂和使用其的图像形成方法

    公开(公告)号:US6077637A

    公开(公告)日:2000-06-20

    申请号:US309793

    申请日:1999-05-11

    CPC classification number: G03G5/08207 G03G5/06 G03G5/08221 G03G5/10 G03G9/1075

    Abstract: A magnetic carrier for use in a developer for developing latent electrostatic images is composed of magnetic carrier particles with a particle size of 35 .mu.m or less in an amount of 15 wt. % or more, and a developer is composed of the above carrier and a toner. An image formation method is composed of the steps of (a) uniformly charging the surface of a photoconductor to a predetermined polarity, (b) forming latent electrostatic images including low potential portions and high potential portions on the photoconductor by subjecting the charged surface of the photoconductor to selective light radiation corresponding to light images, thereby selectively reducing the potential of the surface of the photoconductor, and (c) developing the thus formed latent electrostatic images to visible toner images by bringing the developer into contact with the latent-electrostatic-images-bearing photoconductor.

    Abstract translation: 用于静电潜像显影剂的磁性载体由15重量%的粒度为35μm以下的磁性载体颗粒构成。 %以上,显影剂由上述载体和调色剂构成。 图像形成方法包括以下步骤:(a)将光电导体的表面均匀地充电至预定极性,(b)通过使感光体的带电表面经受光电导体的带电表面,形成包括低电位部分和高电位部分的静电潜像 光电导体对应于光图像的选择性光辐射,从而选择性地降低光电导体表面的电位,并且(c)通过使显影剂与潜在静电图像接触来将如此形成的静电图像显影成可见的调色剂图像 - 感光体。

    Electrophotographic photoreceptor containing granular trigonal selenium
    33.
    发明授权
    Electrophotographic photoreceptor containing granular trigonal selenium 失效
    含有颗粒状三角硒的电子照相感光体

    公开(公告)号:US5470682A

    公开(公告)日:1995-11-28

    申请号:US10858

    申请日:1993-01-29

    CPC classification number: G03G5/087 G03G5/08207

    Abstract: An electrophotographic photoreceptor comprising a photosensitive layer containing granular trigonal selenium which has a mean particle diameter of not more than 5 .mu.m and which has absorption peaks in the X-ray diffraction spectrum using CuK.alpha. characteristic X-rays at Bragg angles (2.degree..theta..+-.0.2.degree.) of 23.5.degree., 29.7.degree., 41.4.degree., and 45.4.degree., is disclosed, which has high photosensitivity and low residual potential, maintains its potential characteristics in a stable manner on repeated use, and exhibits sufficient photosensitivity even when applied to high-speed copying.

    Abstract translation: 一种电子照相感光体,其包含平均粒径不大于5μm的含有颗粒状三角硒的感光层,并且在X射线衍射光谱中具有吸收峰,使用CuKα特征X射线(布拉格角(2° +/- 0.2°)为23.5°,29.7°,41.4°和45.4°,具有高光敏性和低残留电位,重复使用时以稳定的方式保持其电位特性,即使在 适用于高速复印。

    Alloying and coating process
    35.
    发明授权
    Alloying and coating process 失效
    合金和涂层工艺

    公开(公告)号:US5084301A

    公开(公告)日:1992-01-28

    申请号:US576919

    申请日:1990-09-04

    CPC classification number: G03G5/082 C01B19/02 G03G5/08207

    Abstract: Disclosed is an alloying process which comprises, in the order stated (1) heating in a reaction vessel a mixture of selenium and tellurium from ambient temperature to form about 270.degree. C. to about 330.degree. C. while maintaining the mixture in a quiescent state; (2) maintaining the mixture at from about 270.degree. C. to about 330.degree. C. until the entire mixture has reached substantial equilibrium with respect to temperature while maintaining the mixture in a quiescent state; (3) subsequently heating the mixture from the range of from about 270.degree. C. to about 330.degree. C. to the range of from about 500.degree. C. to about 580.degree. C. while maintaining the mixture in a quiescent state; (4) maintaining the mixture at from about 500.degree. C. to about 580.degree. C. until the entire mixture has reached substantial equilibrium with respect to temperature while maintaining the mixture in a quiescent state; (5) thereafter maintaining the mixture at from about 500.degree. C. to about 580.degree. C. for from about 0.75 hour to about 1.5 hours while vigorously agitating the mixture; (6) subsequent to agitation, reducing the temperature of the mixture from the range of from about 500.degree. C. to about 580.degree. C. to the range of from about 425.degree. C. to about 450.degree. C. while maintaining the mixture in a quiescent state; (7) subsequently maintaining the temperature of the mixture at from about 425.degree. C. to about 450.degree. C. for from about 4 hours to about 7 hours while maintaining the mixture in a quiescent state; (8) reducing the temperature of the mixture from the range of from about 425.degree. C. to about 450.degree. C. to the range of from about 290.degree. C. to about 350.degree. C. while maintaining the mixture in a quiescent state; and (9) removing the mixture from the reaction vessel. Also disclosed is a process for preparing an imaging member which comprises preparing a selenium-tellurium alloy by the above process and vacuum evaporating the alloy onto a substrate.

    Photosensitive body for electrophotography with protective and
intermediate layers
    37.
    发明授权
    Photosensitive body for electrophotography with protective and intermediate layers 失效
    具有保护层和中间层的电子照相用感光体

    公开(公告)号:US4880717A

    公开(公告)日:1989-11-14

    申请号:US271004

    申请日:1988-11-14

    CPC classification number: G03G5/0433 G03G5/08207

    Abstract: The present invention provides a photosensitive body of Se-based function separation type to be used in electrophotographic equipment which employs long wavelength light for writing. Such a body exhibits outstanding abrasion resistance and heat resistance without sacrificing good electrical properties. This is accomplished by interposing an intermediate layer of As-Se alloy between the surface protective layer and the chargeable layer. The intermediate layer contains As in an increasing concentration gradient across the section of the layer from the chargeable layer to the surface protective layer. This graded As concentration causes the coefficient of thermal expansion to gradually decrease across the intermediate layer section in the direction from the chargeable layer to the surface protective layer. Thus the intermediate layer prevents the surface protective layer from thermal stress and cracking by acting as a transition buffer between the differing properties of the protective layer and chargeable layer.

    Abstract translation: 本发明提供一种使用长波长光进行书写的电子照相设备中的基于Se的功能分离型感光体。 这种物体表现出优异的耐磨性和耐热性,而不牺牲良好的电性能。 这是通过在表面保护层和可充电层之间插入As-Se合金中间层来实现的。 中间层在从可充电层到表面保护层的层的跨越部分的增加的浓度梯度中包含As。 该As浓度使得在从可充电层到表面保护层的方向上,中间层部分的热膨胀系数逐渐降低。 因此,中间层通过在保护层和可充电层的不同性质之间充当过渡缓冲液来防止表面保护层发生热应力和开裂。

    Selenium alloy treatment
    38.
    发明授权
    Selenium alloy treatment 失效
    硒合金处理

    公开(公告)号:US4780386A

    公开(公告)日:1988-10-25

    申请号:US935907

    申请日:1986-11-28

    CPC classification number: G03G5/08207

    Abstract: A process for preparing an electrophotographic imaging member comprising providing large particles of an alloy comprising selenium, tellurium and arsenic, the large particles having an average particle size of at least about 300 micrometers and an average weight of less than about 1000 mg, mechanically abrading the surfaces of the large particles while maintaining the substantial surface integrety of the large particles to form between about 3 percent by weight to about 20 percent by weight dust particles based on the total weight of the alloy prior to mechanical abrasion.

    Abstract translation: 一种用于制备电子照相成像构件的方法,包括提供包含硒,碲和砷的合金的大颗粒,所述大颗粒的平均粒度为至少约300微米,平均重量小于约1000mg,机械研磨 大颗粒的表面,同时保持大颗粒的实质表面整体在机械磨损之前基于合金的总重量在约3重量%至约20重量%的粉尘颗粒之间形成。

    Electrophotographic recording material
    39.
    发明授权
    Electrophotographic recording material 失效
    电子照相记录材料

    公开(公告)号:US4717635A

    公开(公告)日:1988-01-05

    申请号:US863988

    申请日:1986-05-16

    CPC classification number: G03G5/08207 G03G5/0433

    Abstract: An electrophotographic recording material, composed of an electrically conductive substrate; a first layer provided on the electrically conductive substrate and composed of an amorphous selenium-tellurium alloy containing form 0.05 to 15 weight % tellurium; a second layer disposed on the first layer and composed of an amorphous selenium-tellurium alloy containing from 15 to 60 weight % tellurium; and a third layer provided on the second layer and composed of an amorphous alloy of selenium and from 0.05 to 5 weight % of one arsenic or tellurium. The electrophotographic recording material is particularly useful in an electrophotographic recording system which includes an infrared radiation means, such as an infrared solid state laser.

    Abstract translation: 一种电摄影记录材料,由导电基底组成; 第一层,设置在导电性基体上,由含有0.05〜15重量%碲的无定形硒 - 碲合金构成; 第二层,设置在第一层上,由含有15-60重量%碲的无定形硒 - 碲合金构成; 以及设置在第二层上并由硒的无定形合金和0.05至5重量%的一种砷或碲组成的第三层。 电子照相记录材料在电子照相记录系统中特别有用,该系统包括红外辐射装置,例如红外固态激光器。

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