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    • 1. 发明申请
    • Field Emission Based Photosensitive Drum for Image Forming Apparatus
    • 用于图像形成装置的场发射感光鼓
    • US20080043086A1
    • 2008-02-21
    • US11464858
    • 2006-08-16
    • Kuei-Wen ChengJeng-Ywan JengTe-Fong Chan
    • Kuei-Wen ChengJeng-Ywan JengTe-Fong Chan
    • B41J2/39
    • G03G15/751
    • A photosensitive drum for image forming apparatus includes an inner roller, an outer roller and a photoelectric conversion layer. The inner roller of circular cylindrical shape is formed by a cathode substrate. The outer surface of the circular cylinder is configured with a plurality of cathode units. The outer roller of hollow circular cylindrical shape is formed by an anode substrate. The inner diameter of the outer roller is greater than that of the inner roller such that the inner roller is snugly fitted inside the outer roller. The anode substrate includes a plurality of anode units corresponding to the cathode units. The photoelectric conversion layer is a hollow circular cylinder with an inner diameter greater than the outer diameter of the outer roller such that photoelectric conversion layer is snugly fitted onto the surface of the outer roller. An electric potential difference is applied on the cathode substrate to induce the electron beam generated by the cathode unit to impinge on the anode unit to produce light. The generated light is directly converted into electrostatic by the photoelectric conversion layer to adsorb on the surface thereof to adsorb toner powder. The toner on the surface of the photosensitive drum is then transferred and fused on paper to form image.
    • 用于图像形成装置的感光鼓包括内辊,外辊和光电转换层。 圆筒形的内辊由阴极基板形成。 圆筒的外表面配置有多个阴极单元。 中空圆筒形的外辊由阳极基板形成。 外辊的内径大于内辊的内径,使得内辊紧密地装配在外辊内。 阳极基板包括对应于阴极单元的多个阳极单元。 光电转换层是内径大于外辊的外径的中空圆柱体,使得光电转换层紧密地装配在外辊的表面上。 在阴极基板上施加电位差,使由阴极单元产生的电子束撞击在阳极单元上产生光。 所产生的光通过光电转换层直接转换为静电,以吸附在其表面上以吸附调色剂粉末。 然后将感光鼓表面上的调色剂转印并融合在纸上以形成图像。