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    • 2. 发明授权
    • Process for reducing image defects in an electrostatographic apparatus containing particulate contaminants
    • 用于减少含有颗粒污染物的静电摄影装置中的图像缺陷的方法
    • US06649314B1
    • 2003-11-18
    • US09506159
    • 2000-02-17
    • Susan A. VisserDonald S. RimaiPaul M. Borsenberger
    • Susan A. VisserDonald S. RimaiPaul M. Borsenberger
    • G03G1322
    • G03G15/751G03G2215/00957
    • A process for reducing image defects in an electrostatographic image resulting from particulate contamination. A primary imaging member, including a photoconductive element and an outermost layer of silicon carbide, is uniformly charged in an electrostatographic imaging apparatus subject to particulate contamination. The electrostatographic imaging apparatus includes a charging station, an exposing station, at least one developing station, and a transfer station comprising an electrically biased roller transfer assembly. The primary imaging member is exposed imagewise at the exposing station to form a latent image on the imaging member, which is thereafter developed with toner at the developing station to form a developed image on the imaging member. The primary imaging member bearing the developed image is passed through a charge erasing station to remove residual surface charge, then contacted with a receiver by the electrically biased roller transfer assembly, causing the developed image to transfer to the receiver. The silicon carbide layer protects the photoconductive element against damage by contaminant particles present in the apparatus.
    • 降低由微粒污染引起的静电图像中的图像缺陷的方法。 包括光电导元件和碳化硅的最外层的主要成像构件被均匀地装入受到颗粒污染的静电成像设备中。 所述静电摄影成像装置包括充电站,曝光站,至少一个显影站以及包括电偏置辊传送组件的传送站。 主要成像构件在曝光站成像曝光以在成像构件上形成潜像,然后在显影站处用调色剂显影,以在成像构件上形成显影图像。 承载显影图像的主要成像构件通过电荷擦除站以去除残留的表面电荷,然后通过电偏置的辊传送组件与接收器接触,使得显影的图像转移到接收器。 碳化硅层保护光电导元件免受设备中存在的污染物颗粒的损害。
    • 8. 发明授权
    • Electrostatographic apparatus and method for improved transfer of small
particles
    • 用于改善小颗粒转移的静电摄影装置和方法
    • US5807651A
    • 1998-09-15
    • US975538
    • 1997-11-20
    • Donald S. RimaiPaul M. BorsenbergerSalvatore LeoneMarie B. O'ReganThomas N. Tombs
    • Donald S. RimaiPaul M. BorsenbergerSalvatore LeoneMarie B. O'ReganThomas N. Tombs
    • G03G9/08G03G5/147G03G15/01G03G15/16G03G5/04
    • G03G5/14795G03G15/162
    • Unexpectedly good transfer of electrophotographically-produced images using small toner particles occurs when the image is developed on an electrostatographic recording member, preferably an organic photoconductive element, which has been overcoated with a thin (about 10 nm to about 10 .mu.m thick) layer of a material having a Young's modulus greater than 10 GPa and preferably greater than about 100 GPa. The image is then transferred to an intermediate member which is comprised of an elastomeric blanket between about 0.1 and about 3 cm thick, having a Young's modulus between about 0.5 MPa and about 50 MPa, and preferably between about 1 and about 10 MPa, and having an electrical resistivity between about 10.sup.6 ohm-cm and about 10.sup.12 ohm-cm, by applying an appropriate electrostatic potential between the transfer intermediate member and the photoconductive element. The toned image is transferred from the intermediate transfer member to the receiver by applying an electrostatic field between the receiver and the intermediate transfer member. The blanket material comprising the intermediate transfer member should be overcoated with a thin (between about 0.1 .mu.m and about 25 .mu.m thick) layer of a material having a Young's modulus greater than about 100 MPa and preferably greater than about 1 GPa.
    • 当图像在电沉积记录元件(优选有机光电导元件)上显影时,出现了使用小调色剂颗粒的电子照相产生图像的出乎意料的良好转印,该有机光电导元件已经用薄(约10nm至约10μm厚)的层 杨氏模量大于10GPa,优选大于约100GPa的材料。 然后将图像转移到由约0.1至约3cm厚之间的弹性体覆盖层组成的中间构件,其杨氏模量在约0.5MPa至约50MPa之间,优选约1至约10MPa,并且具有 通过在转印中间构件和光电导元件之间施加适当的静电电位,电阻率在约106ohm-cm到约1012ohm-cm之间。 通过在接收器和中间转印部件之间施加静电场,将色调图像从中间转印部件转印到接收器。 包括中间转印部件的橡皮布材料应该用厚度大约为100MPa,优选大于约1GPa的材料的薄(约0.1μm至约25μm厚)的材料层涂覆。