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    • 8. 发明授权
    • Photoreceptor charging systems and methods
    • 感光体充电系统及方法
    • US07257357B2
    • 2007-08-14
    • US11131319
    • 2005-05-17
    • Douglas A. LundyMichael J. TuranHuoy-Jen YuhMoritz Wagner
    • Douglas A. LundyMichael J. TuranHuoy-Jen YuhMoritz Wagner
    • G03G15/16
    • G03G15/0275
    • Embodiments herein comprise a charging station adjacent a photoreceptor. The charging station is adapted to charge the document zone of the photoreceptor with a first negative voltage and to charge the inter-document zone of the photoreceptor with a second negative voltage that is more negative than the first negative voltage. The second more negative voltage reduces the amount of positive charges trapped within layers of the inter-document zone of the photoreceptor. Thus, when the charging station increases the size of the document zone from a smaller size associated with a smaller printing medium to a larger size associated with a larger printing medium, by reducing the positive charges from being trapped within layers of the inter-document zone of the photoreceptor, ghosting is reduced on the larger printing medium.
    • 本文的实施例包括邻近感光体的充电站。 充电站适于以第一负电压对感光体的原稿区域充电,并且以比第一负电压更负的第二负电压对感光体的文档原稿区域充电。 第二个更多的负电压减少了在感光体的文档间区域内的层中捕获的正电荷的量。 因此,当充电站从与较小打印介质相关联的较小尺寸的文档区域的大小增加到与较大打印介质相关联的较大尺寸时,通过减少正电荷被夹在文档间区域的层内 的感光体,重影在较大的打印介质上减少。