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公开(公告)号：US5300985A
公开(公告)日：1994-04-05
申请号：US891326
申请日：1992-05-29
申请人： John C. Demott , Charles J. Urso, Jr. , Mary A. Straube , Donald E. Wiedrich , Robert W. Corbin
发明人： John C. Demott , Charles J. Urso, Jr. , Mary A. Straube , Donald E. Wiedrich , Robert W. Corbin
IPC分类号： G03G15/047 , H01J61/35 , G03G21/00
CPC分类号： G03G15/047 , H01J61/35
摘要： A multi-function, multi-segment ac plasma erase lamp is provided to selectively erase previously charged areas of a photoconductive member. The lamp performs the conventional erase function of fixed edge erase, edge shift and patch generation, while adding the functions of variable edge erase along an edge to accommodate reduction images and changes in page size. Another feature of this erase lamp is a "dark" segment which is energized but is not light emitting. Its function is to enhance the turn on time for the light emitting segments. A still further improvement is the application of a voltage to a photoresist coating applied the the lamp surface to create a field which will repel toner and dust particles from that surface of the lamp.
摘要翻译： 提供多功能多段交流等离子体擦除灯以选择性地擦除光导体的预先充电的区域。 该灯执行固定边缘擦除，边缘移位和贴片生成的常规擦除功能，同时沿着边缘添加可变边缘擦除的功能以适应缩小图像和页面大小的变化。 该擦除灯的另一个特征是被激励但不发光的“暗”段。 其功能是增强发光片段的导通时间。 进一步的改进是施加施加到灯表面的光致抗蚀剂涂层的电压以产生将从灯的表面排斥调色剂和灰尘颗粒的场。
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公开(公告)号：US5008707A
公开(公告)日：1991-04-16
申请号：US402729
申请日：1989-09-05
申请人： Joan R. Ewing , Donald E. Wiedrich
发明人： Joan R. Ewing , Donald E. Wiedrich
CPC分类号： G03G15/04 , G03G15/0291 , G03G15/24 , G03G15/043
摘要： Apparatus and method for forming an electrostatic latent image on an imaging member having a photoconductive insulating layer has a voltage sensitive corona charging device with a corona generating electrode and a control electrode positioned in charging relationship to the photoconductive insulating layer, means to energize the charging device to charge the photoconductive insulating layer to a first level comprising means to apply a corona generating voltage to the corona generating electrode and to apply a control voltage of a first magnitude to the control electrode, and means to expose the photoconductive insulating layer to an image pattern simultaneously while the charging device is energized.
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公开(公告)号：US06469728B1
公开(公告)日：2002-10-22
申请号：US08573845
申请日：1995-12-18
IPC分类号： B41J1514
CPC分类号： B41J2/451
摘要： A printbar assembly comprised of an array of light emitters, and array of gradient index lenses, and a light control film. The light control film, which is comprised of a plurality of microlouvers, is disposed such that it limits the angle at which light from the light emitters can enter the gradient index lenses. The light control film increases the depth of focus of the gradient index lens array without significantly reducing the effective radiometric efficiency.
摘要翻译： 由光发射器阵列和梯度折射率透镜阵列组成的印刷电路组件和光控膜。 由多个微型充电器组成的光控制薄膜被设置成限制来自发光体的光可以进入渐变折射率透镜的角度。 光控制膜增加了梯度折射率透镜阵列的焦深，而不显着降低有效辐射效率。
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