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1.发明授权Method and apparatus for sensing contamination within an optical scanning system 失效用于感测光学扫描系统内的污染物的方法和装置
公开(公告)号：US4982233A
公开(公告)日：1991-01-01
申请号：US433249
申请日：1989-11-08
申请人： Richard F. Lehman , James D. Rees
发明人： Richard F. Lehman , James D. Rees
IPC分类号： G03G21/00 , G03B27/52 , G03G15/04 , G03G15/043
CPC分类号： G03G15/04
摘要： A sensor array is positioned in the optical scanning system of a copier so as to be able to periodically provide a measurement of the degree of image degradation present in the system due to contamination of the optical system components. The sensor array is adapted to measure the modulation transfer frequency of a bar chart which is exposed in the optical system. The measured value of MTF is compared to a predetermined value of MTF representing a uncontaminated measurement at the bar chart. When the comparison indicates that the measured MTF is below a minimum acceptable threshold value, a display is activated to alert an operator that an optic system cleaning operation is required.
摘要翻译： 传感器阵列位于复印机的光学扫描系统中，以便能够周期性地提供由于光学系统部件的污染而在系统中存在的图像劣化程度的测量。 传感器阵列适于测量在光学系统中暴露的条形图的调制传递频率。 将MTF的测量值与条形图上的未受污染测量的MTF的预定值进行比较。 当比较表明所测量的MTF低于最小可接受阈值时，显示器被激活以提示操作者需要进行光学系统清洁操作。
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2.发明授权Liquid crystal shutter xerographic printer with offset configuration lamp aperture and copier/printer with optically aligned lamps, image bars, and lenses 失效具有偏移配置灯孔的液晶快门静电复印机和具有光学对准灯，图像条和透镜的复印机/打印机
公开(公告)号：US5260718A
公开(公告)日：1993-11-09
申请号：US816782
申请日：1992-01-02
申请人： Heiko Rommelmann , James D. Rees , Richard F. Lehman , David D. Hoesly , Joseph F. Stephany , Gary S. Schwarz
发明人： Heiko Rommelmann , James D. Rees , Richard F. Lehman , David D. Hoesly , Joseph F. Stephany , Gary S. Schwarz
CPC分类号： G06K15/1242 , B41J2/465 , G03G15/04045 , G03G15/221 , H04N1/193
摘要： A xerographic printer especially suitable for printing copies of oversized original documents is enabled by staggering a plurality of image bars in optical alignment with a linear projection means such as gradient index lens arrays which are tilted at a preferred angle. The image bars are selectively addressed in response to digitized bit-mapped data inputs representing the document information. The modulated light outputs from the bars are transmitted as focused lines on the surface of the photoreceptor. The printer includes illumination lamps and a lamp aperture which parallels the staggered image bars. Further, a multi-function copier/printer is realized by combining a variation of the xerographic printer with a conventional imaging system for copying a document.
摘要翻译： 特别适用于打印超大尺寸原始文档副本的静电印刷打印机可以通过与诸如以优选角度倾斜的梯度折射率透镜阵列的线性投影装置进行光学对准来交错多个图像棒来实现。 响应于表示文档信息的数字化位映射数据输入，选择性地寻址图像条。 来自棒的调制光输出作为聚焦线在感光体的表面上传输。 打印机包括照明灯和与交错图像条平行的灯孔。 此外，通过将静电印刷机的变体与用于复印文件的常规成像系统组合来实现多功能复印机/打印机。
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公开(公告)号：US4967265A
公开(公告)日：1990-10-30
申请号：US332821
申请日：1989-04-04
摘要： A color correction system for a color copier is enabled by means of a low resolution RIS unit attached to a light/lens scan system which creates an electronic raster image simultaneously with formation of a color latent image. The RIS output signals are used to modulate the output of a ROS unit which exposes the color latent image to a modulated color correction pattern. Color developer units are enabled to successively develop each color.
摘要翻译： 用于彩色复印机的颜色校正系统通过附加到光/透镜扫描系统的低分辨率RIS单元来实现，该系统在形成彩色潜像的同时产生电子光栅图像。 RIS输出信号用于调制ROS单元的输出，该ROS单元将彩色潜像曝光到调制色彩校正图案。 彩色显影单元能够连续显色。
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公开(公告)号：US4118122A
公开(公告)日：1978-10-03
申请号：US766465
申请日：1977-02-07
申请人： James D. Rees , Richard F. Lehman
发明人： James D. Rees , Richard F. Lehman
CPC分类号： G03G21/043 , Y10S283/902
摘要： Techniques to render documents and like objects uncopyable by photocopy means. Illumination spectral composition, object background color, and photoreceptor sensitivity are appropriately combined such that the photoreceptor perceives no object contrast. The result may be either a blackout or a whiteout of the object information.
摘要翻译： 通过复印手段来呈现文件和类似对象无法复制的技术。 适当地组合照明光谱组成，对象背景颜色和感光器感光度，使得感光体不感觉物体对比度。 结果可能是对象信息的中断或白化。
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公开(公告)号：US6078341A
公开(公告)日：2000-06-20
申请号：US211235
申请日：1998-12-14
申请人： James D. Rees , Edward C. Bock
发明人： James D. Rees , Edward C. Bock
IPC分类号： B41J2/44 , B41J2/47 , G02B26/10 , G02B26/12 , G06K15/12 , H04N1/113 , H04N1/12 , H04N1/191 , G03G15/04
CPC分类号： H04N1/1918 , B41J2/473 , G02B26/123 , G06K15/1257 , H04N1/1912 , H04N1/1135 , H04N1/12
摘要： A raster output scanner assembly having a first laser source for producing first and second laser beams, and a second laser source for producing third a fourth laser beams. The first and second laser beams are directed to a first rotating, multifaceted polygon while the third and fourth laser beams are directed to a second rotating, multifaceted polygon. The first polygon reflects the first and second laser beams onto a moving photoreceptor while the second polygon reflects the third and fourth laser beams onto the photoreceptor. The spots produced by the various laser beams are interlaced such that the scan line produced by the third laser beam is between the scan lines produced by the first and second laser beams, while the scan line produced by the fourth laser beam is adjacent the scan line produced by the second laser beam.
摘要翻译： 一种具有用于产生第一和第二激光束的第一激光源的光栅输出扫描器组件和用于产生第三个第四激光束的第二激光源。 第一和第二激光束被引导到第一旋转多面多边形，而第三和第四激光束被引导到第二旋转多面多边形。 第一多边形将第一和第二激光束反射到移动感光体上，而第二多面体将第三和第四激光束反射到感光体上。 由各种激光束产生的斑点交错，使得由第三激光束产生的扫描线在由第一和第二激光束产生的扫描线之间，而由第四激光束产生的扫描线与扫描线相邻 由第二激光束产生。
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公开(公告)号：US5208636A
公开(公告)日：1993-05-04
申请号：US856311
申请日：1992-03-23
IPC分类号： G03G15/01
CPC分类号： G03G15/0152 , G03G15/0163
摘要： A printing machine in which two electrostatic latent images are recorded on a photoconductive member. One of the latent images is a charged area latent image with the other image being a discharged area latent image. A magnetic developer unit develops the charged area latent image with black toner particles. A non-magnetic developer unit develops the discharged area latent image with toner particles of a color other than black. The toner particles from both latent images are transferred substantially simultaneously to a sheet and fused thereto forming a color high lighted document.
摘要翻译： 其中两个静电潜像被记录在感光体上的印刷机。 潜像中的一个是带电区域潜像，其他图像是放电区域潜像。 磁性显影剂单元用黑色调色剂颗粒显影带电区域潜像。 非磁性显影剂单元用除黑色以外的颜色的调色剂颗粒显影排出区域潜像。 来自两个潜像的调色剂颗粒基本上同时转印到片材上并熔合，从而形成彩色高亮文档。
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公开(公告)号：US5089908A
公开(公告)日：1992-02-18
申请号：US735664
申请日：1991-07-26
申请人： Ronald E. Jodoin , Robert P. Loce , William L. Lama , James D. Rees , Abd-El-Fattah A. Ibrahim , James J. Appel
发明人： Ronald E. Jodoin , Robert P. Loce , William L. Lama , James D. Rees , Abd-El-Fattah A. Ibrahim , James J. Appel
CPC分类号： G02B26/123 , H04N1/29
摘要： A multiple diode laser array used in a ROS scanning system is modified to reduce the effects of undesirable spatial exposure variation at the surface of certain type of layered, semi-transparent photoreceptors. The spatial absorption variation is later manifested as a "plywooding" pattern formed on output prints derived from the exposed photoreceptor. The laser array is modified to form a merged scanning beam at the photoreceptor surface of two or more diode outputs, each output operating at a different wavelength than the other. In one embodiment, a plurality of diodes, each at a different wavelength, are sequentially addressed, and an image of each diode is scanned across the photoreceptor which results in an exposure distribution that would be similar to that formed by an incoherent beam.
摘要翻译： 修改了在ROS扫描系统中使用的多重二极管激光器阵列，以减少某些类型的分层半透明感光体表面的不期望的空间曝光变化的影响。 空间吸收变化后来表现为在从曝光的感光体得到的输出印刷品上形成的“胶合”图案。 修改激光器阵列以在两个或更多个二极管输出的感光体表面处形成合并的扫描光束，每个输出的操作波长不同于另一个。 在一个实施例中，每个处于不同波长的多个二极管被顺序地寻址，并且每个二极管的图像跨越感光体扫描，导致与由非相干光束形成的曝光分布相似的曝光分布。
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公开(公告)号：US4982222A
公开(公告)日：1991-01-01
申请号：US890204
申请日：1986-07-28
申请人： James D. Rees
发明人： James D. Rees
CPC分类号： H04N1/0311 , B41J2/451 , G02B3/005 , G02B3/0056 , G02B3/0087 , G03G15/04 , H04N1/0312 , H04N1/0317 , G03G15/0435 , H04N1/193 , H04N2201/0458
摘要： The present invention is directed to optical imaging systems which utilize linear lens arrays and particularly gradient index lens arrays as the means for projecting light images onto a photosensitive image member. Exposure modulation at the image plane is reduced by oscillating the lens array during an exposure interval, the oscillating period and excursion distance being dependent upon the type of imaging environment the lens is used in. For document copying applications, the requirement for a two-row array to provide minimum exposure modulation is reduced so that a one-row lens array is enabled. For printer and RIS scanning functions, oscillation of a two-row array enables improved system efficiency and hence greater image irradiance and exposure.
摘要翻译： 本发明涉及利用线性透镜阵列和特别是梯度折射率透镜阵列作为将光图像投影到感光图像部件上的装置的光学成像系统。 通过在曝光间隔期间振荡透镜阵列来减小图像平面上的曝光调制，振荡周期和偏移距离取决于使用镜头的成像环境的类型。对于文档复印应用，需要两行 提供最小曝光调制的阵列减小，使得能够使单行透镜阵列。 对于打印机和RIS扫描功能，两列阵列的振荡可以提高系统效率，从而提高图像辐照度和曝光率。
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9.再颁专利Illumination system utilizing two opposing DC lamps with an optimum barrel-shaped slit 失效照明系统利用两个相对的直流灯具有最佳的桶形狭缝
公开(公告)号：USRE31499E
公开(公告)日：1984-01-17
申请号：US87174
申请日：1979-10-22
IPC分类号： G03B27/54
CPC分类号： G03B27/542
摘要： .[.A symmetrical light intensity distribution profile is achieved by placing a pair of similar asymmetrical linear DC gas discharge lamps in parallel position but opposed in polarity. The individual asymmetrical distributions of the lamps combine in a symmetrical total intensity distribution. A desired "butterfly" or other intensity distribution profile can be achieved..]. .Iadd.The invention relates to an illumination system which provides nonuniform illumination along an object plane in the dimension of an illumination source which includes two linear lamps. The lamps have their anodes and cathodes connected in reverse fashion relative to each other; each lamp provides its own asymmetrical light output distribution pattern but the resultant output of both lamps is a symmetrical pattern which provides the characteristic nonuniform illumination on the object plane. .Iaddend.
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10.发明授权Illumination system utilizing two opposing DC lamps with an optimum barrel-shaped slit 失效照明系统利用两个相对的直流灯具有最佳的桶形狭缝
公开(公告)号：US4086010A
公开(公告)日：1978-04-25
申请号：US737299
申请日：1976-11-01
IPC分类号： G03B27/54
CPC分类号： G03B27/542
摘要： A symmetrical light intensity distribution profile is achieved by placing a pair of similar asymmetrical linear DC gas discharge lamps in parallel position but opposed in polarity. The individual asymmetrical distributions of the lamps combine in a symmetrical total intensity distribution. A desired "butterfly" or other intensity distribution profile can be achieved.
摘要翻译： 通过将一对相似的非对称线性直流气体放电灯置于平行位置但极性相反的方式实现对称的光强分布曲线。 灯的单个不对称分布以对称的总强度分布组合。 可以实现期望的“蝴蝶”或其他强度分布轮廓。
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