Method for varying nozzle traversal speed to obtain uniform thickness
electrostatically spray coated layers
    2.
    发明授权
    Method for varying nozzle traversal speed to obtain uniform thickness electrostatically spray coated layers 失效
    改变喷嘴穿越速度以获得均匀厚度的静电喷涂层的方法

    公开(公告)号:US5114736A

    公开(公告)日:1992-05-19

    申请号:US458184

    申请日:1989-12-27

    CPC分类号: B05B13/04 B05D1/04

    摘要: A method and apparatus for electrostatically spray coating substrates with layers of material having uniform thicknesses is provided. A substrate to be coated is electrically grounded and an electrically charged, atomized spray of coating material is directed toward the substrate from a nozzle. The nozzle is traversed along a length of the substrate, which can also be rotated, to coat substantially the entire surface of the substrate. In order to compensate for thickness variations in the applied coating, the speed of traversal of the nozzle is varied. In a preferred embodiment, where photoreceptor drums are produced by spraying a photoreceptor material onto a cylindrical substrate, the speed of traversal of the nozzle is reduced as it approaches at least one end of the cylindrical substrate.

    摘要翻译: 提供了一种用于静电喷涂涂覆具有均匀厚度的材料层的基板的方法和装置。 待涂覆的基底电接地,并且涂覆材料的带电雾化喷雾从喷嘴指向基底。 喷嘴沿着基板的长度移动,该基板也可以旋转,以基本上涂覆基板的整个表面。 为了补偿施加的涂层中的厚度变化,喷嘴的穿过速度是变化的。 在优选实施例中,通过将感光体材料喷射到圆柱形基底上来制造感光鼓,当喷嘴接近圆柱形基底的至少一端时,喷嘴的穿过速度降低。

    Lid machine capable of producing clean-background stabilized liquid
toner images
    3.
    发明授权
    Lid machine capable of producing clean-background stabilized liquid toner images 失效
    盖子能够生产清洁背景稳定的液体调色剂图像

    公开(公告)号:US5559588A

    公开(公告)日:1996-09-24

    申请号:US527615

    申请日:1995-09-13

    CPC分类号: G03G15/11

    摘要: A liquid ink development (LID) reproduction machine for producing a stabilized liquid toner image having clean-background areas. The reproduction machine includes a movable image bearing member having a photoconductive surface, and latent image forming devices for forming a latent image on the photoconductive surface such that the latent image has image areas and background areas. The reproduction machine also includes a development apparatus containing liquid toner developer material for developing the latent image. The liquid toner developer material includes a carrier liquid having a relatively low conductivity for preventing shorting of image conditioning electric fields through a layer of the liquid toner developer material forming the image. The liquid toner developer material also includes charged toner particles dispersed within the carrier liquid and having a relatively high charge level per toner particle for making the toner particles more sensitive to a low voltage image conditioning electric field. More importantly, the reproduction machine includes an image stabilization roller having a relatively low voltage biasing field for image conditioning so as to achieve effective image stabilization as well as clean developed image background areas.

    摘要翻译: 一种用于生产具有干净背景区域的稳定的液体调色剂图像的液体油墨显影(LID)再现机。 再现机器包括具有光导表面的可动图像承载部件和用于在光电导表面上形成潜像以使潜像具有图像区域和背景区域的潜像形成装置。 再现机器还包括显影装置,该显影装置含有用于显影潜像的液体调色剂显影剂材料。 液体调色剂显影剂材料包括具有相对低导电性的载体液体,用于防止通过形成图像的液体调色剂显影剂层的图像调节电场短路。 液体调色剂显影剂材料还包括分散在载体液体中的带电调色剂颗粒,并且每个调色剂颗粒具有相对高的电荷量,以使调色剂颗粒对低电压图像调节电场更敏感。 更重要的是,再现机器包括具有用于图像调理的相对低的电压偏置场的图像稳定辊,以便实现有效的图像稳定以及清洁的显影图像背景区域。

    Multi-layered ambipolar photoresponsive devices for electrophotography
    4.
    发明授权
    Multi-layered ambipolar photoresponsive devices for electrophotography 失效
    用于电子照相术的多层双极光响应装置

    公开(公告)号:US4410616A

    公开(公告)日:1983-10-18

    申请号:US376078

    申请日:1982-05-10

    IPC分类号: G03G5/06 G03G5/047 G03G5/14

    摘要: This invention is directed to an improved ambipolar photoresponsive device useful in imaging systems for the production of positive images, from either positive or negative originals, which device is comprised of:(a) supporting substrate,(b) a first photogenerating layer,(c) a charge transport layer, and(d) a second photogenerating layer,wherein the charge transport layer is comprised of a highly insulating organic resin having dissolved therein small molecules of an electrically active material of the formula: ##STR1## wherein X is selected from the group consisting of alkyl and hal

    摘要翻译: 本发明涉及一种改进的双极光响应装置,其用于成像系统,用于从正或负的原稿生产正像,该装置包括:(a)支撑基底,(b)第一光生代层,(c )电荷输送层,和(d)第二光生代层,其中电荷输送层由其中溶解有下式的电活性材料的小分子的高绝缘性有机树脂组成:其中X

    Method for obtaining improved image contrast in migration imaging members
    5.
    发明授权
    Method for obtaining improved image contrast in migration imaging members 失效
    用于获得改进的成像成像中的图像对比度的方法

    公开(公告)号:US5514505A

    公开(公告)日:1996-05-07

    申请号:US441360

    申请日:1995-05-15

    CPC分类号: G03G17/04 G03G17/10

    摘要: Disclosed is a process which comprises (a) providing a migration imaging member comprising (1) a substrate and (2) a softenable layer comprising a softenable material and a photosensitive migration marking material present in the softenable layer as a monolayer of particles situated at or near the surface of the softenable layer spaced from the substrate; (b) uniformly charging the imaging member; (3) imagewise exposing the charged imaging member to activating radiation at a wavelength to which the migration marking material is sensitive; (d) subsequent to step (c), causing the softenable material to soften and enabling a first portion of the migration marking material to migrate through the softenable material toward the substrate in an imagewise pattern while a second portion of the migration marking material remains substantially unmigrated within the softenable layer; and (e) contacting the second portion of the migration marking material with a transparentizing agent which transparentizes migration marking material.

    摘要翻译: 公开了一种方法,其包括(a)提供迁移成像构件,其包括(1)基底和(2)可软化层,其包含可软化材料和存在于可软化层中的光敏迁移标记材料,作为位于或 靠近可软化层的与衬底间隔开的表面; (b)对成像构件均匀充电; (3)使带电成像构件成像曝光于迁移标记材料敏感的波长处的激活辐射; (d)在步骤(c)之后,使可软化材料软化,并使迁移标记材料的第一部分以成像图案向基材迁移,同时迁移标记材料的第二部分基本保持 在可软化层内不移动; 和(e)使所述迁移标记材料的第二部分与使透明标记材料透明化的透明剂接触。

    Method of treating seamless belt substrates and carriers therefor
    6.
    发明授权
    Method of treating seamless belt substrates and carriers therefor 失效
    处理无缝带基板和载体的方法

    公开(公告)号:US5443785A

    公开(公告)日:1995-08-22

    申请号:US176380

    申请日:1994-01-03

    摘要: A seamless substrate is elastically stretched over a hollow cylindrical porous mandrel having a thermal expansion coefficient not greater than the thermal expansion coefficient of the substrate by applying fluid under pressure through the mandrel and relieving the pressure of the fluid so that the substrate relapses to a shape in close contact with the mandrel. A substrate carrier includes a hollow, substantially cylindrical mandrel formed of a porous material, the mandrel having an outer diameter not greater than the inner diameter of the tubular substrate and means for supplying a pressurized fluid to the interior of the mandrel, wherein the porous material is a material having a thermal expansion coefficient not greater than the thermal expansion coefficient of the substrate.

    摘要翻译: 通过在压力下通过心轴施加流体并减轻流体的压力使无衬底弹性拉伸在具有不大于基底的热膨胀系数的热膨胀系数的中空圆柱形多孔心轴上,使得基底复位成形状 与心轴紧密接触。 衬底载体包括由多孔材料形成的中空的基本上圆柱形的心轴,心轴具有不大于管状基底的内径的外径和用于将加压流体供应到心轴的内部的装置,其中多孔材料 是具有不大于基板的热膨胀系数的热膨胀系数的材料。

    Method and apparatus for making seamless belt photoreceptors
    9.
    发明授权
    Method and apparatus for making seamless belt photoreceptors 失效
    制造无缝带光感受器的方法和装置

    公开(公告)号:US5100628A

    公开(公告)日:1992-03-31

    申请号:US636145

    申请日:1990-12-31

    摘要: A method and apparatus for coating photoreceptors used in copying machines. Prior to coating, an elastically deformable material is placed about the external surface of a mandrel to accommodate the belt. The thickness of the material is such that when the belt is pushed over the mandrel the deformable material is deformed and engages the interior surfaces of the belt facing the mandrel. As a result of heating and cooling steps involved during the coating process, the belt contracts and expands differently than the mandrel. The deformable material deforms accordingly to maintain consistent contact throughout between it and the undersurface of the belt.

    摘要翻译: 一种用于复印机中使用的感光体的涂覆方法和装置。 在涂覆之前,将可弹性变形的材料围绕心轴的外表面放置以容纳带。 材料的厚度使得当带被推到心轴上时,可变形材料变形并与面向心轴的带的内表面接合。 由于在涂覆过程中涉及的加热和冷却步骤的结果,带收缩和膨胀不同于心轴。 可变形材料相应地变形以保持其与带的下表面之间的一致的接触。

    Direct alpha to X phase conversion of metal-free phthalocyanine
    10.
    发明授权
    Direct alpha to X phase conversion of metal-free phthalocyanine 失效
    直接α到X相转化无金属酞菁

    公开(公告)号:US3932180A

    公开(公告)日:1976-01-13

    申请号:US366396

    申请日:1973-06-04

    IPC分类号: C09B67/26 G03G5/06 C09B47/08

    CPC分类号: G03G5/0696

    摘要: Process for direct alpha to X phase conversion of metal-free phthalocyanine. In this process, the alpha polymorph of a metal-free phthalocyanine pigment can be directly converted to the X form by depositing the alpha form of the pigment on a suitable substrate followed by in situ conversion of this deposit by controlled heating. The X form of metal-free phthalocyanine is known to possess good electrophotographic speed, and, thus, can be used either alone or in combination with other photoconductive materials in electrophotography.

    摘要翻译: 用于直接α至X相转化无金属酞菁的方法。 在该方法中,通过将α形式的颜料沉积在合适的底物上,然后通过受控加热原位转化该沉积物,可以将无金属酞菁颜料的α多晶型物直接转化为X形式。 已知X形式的无金属酞菁具有良好的电子照相速度,因此可以单独使用或与电子照相术中的其它光电导材料组合使用。