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    Method and apparatus for compensating for illumination variations of a lamp in a document scanning system following extended lamp inactivity
    4.
    发明授权
    Method and apparatus for compensating for illumination variations of a lamp in a document scanning system following extended lamp inactivity 失效
    扩展灯不活动后补偿原稿扫描系统中灯的照明变化的方法和装置

    公开(公告)号：US5153745A

    公开(公告)日：1992-10-06

    申请号：US590426

    申请日：1990-09-28

    申请人： Warren F. Brandkamp ,  William A. Blitz ,  Gerald L. Coy

    发明人： Warren F. Brandkamp ,  William A. Blitz ,  Gerald L. Coy

    IPC分类号： G03B27/54 ,  G03G15/04 ,  G03G15/043 ,  H04N1/04 ,  H04N1/40

    CPC分类号： G03G15/04036 ,  H04N1/40056

    摘要： An illumination output from a fluorescent lamp used in a RIS type scanner is maintained at optimum by monitoring the lamp's on/off state and turning the lamp on for a time period following a specified cumulative off time. In one example, the lamp is turned on for a two minute interval following a one hour off time. Following the two minute on period, a diagnostic test is automatically performed to determine whether variations in the lamp output have resulted in an out of specification condition requiring that the lamp be recalibrated to the photosensor array. The calibration is automatically enabled by adjusting the gain of the photosensor array until the photosensor response is within the nominal percentage range. The scanner is then returned to a standby mode. All of the tests are performed automatically and normal operations can be accomplished while the lamp is in warm up phase.

    摘要翻译： 在RIS型扫描仪中使用的荧光灯的照明输出通过监视灯的开/关状态并在指定的累积关闭时间之后的一段时间内将灯保持在最佳状态。 在一个例子中，在一个小时的关闭时间之后，灯亮了两分钟。 在两分钟的时间段之后，自动执行诊断测试，以确定灯输出的变化是否导致超出规范条件，要求灯被重新校准到光电传感器阵列。 通过调整光电传感器阵列的增益自动启用校准，直到光电传感器响应在标称百分比范围内。 然后扫描仪返回待机模式。 所有的测试都是自动执行的，并且在灯处于预热阶段时可以完成正常的操作。

    Double feeding prevention in a bottom sheet document feeder
    7.
    发明授权
    Double feeding prevention in a bottom sheet document feeder 失效
    底部进纸器中双重进纸防止

    公开(公告)号：US5062602A

    公开(公告)日：1991-11-05

    申请号：US572279

    申请日：1990-08-24

    申请人： Glenn F. Kress ,  Gerald L. Coy

    发明人： Glenn F. Kress ,  Gerald L. Coy

    IPC分类号： B65H3/12 ,  B65H3/52 ,  G03G15/00

    CPC分类号： B65H3/523

    摘要： A multifeed resistance system 90 which is a simple and low cost modification of known non-retard type bottom sheet separator/feeders, especially a vacuum feeder 17 in which the stack 14 of sheets is fluffed by an air knife 18 and the front area of the bottom sheet 98 is pulled down by vacuum and fed vacuum out from the bottom of the stack 14 with the corrugating vacuum belt feeder 17 and there fed out of the tray 16 from underneath the stack 14. A limited area of special multifeed resisting or retarding member 92 under the rear area of the stack 14 has been found to be effective in resisting multifeeds, yet not interfere with effective bottom sheet sequential feeding. One or more areas of the double feeding resistance member 92 overly the rear or upstream portion of the stack supporting bottom surface 15 of the stacking tray 16. This is an oriented (one-way) fiber mat, cloth or pad material, the fibers 94 of which are angled upstream (oriented towards the rear of the tray 16). These upstream oriented fibers 94 engage the trail or upstream edge area of the second-from-the-bottom sheet 96 to resist its downstream movement as the bottom-most sheet 98 is being initially separated and fed out.

    摘要翻译： 已知的非延迟型底片分离器/进料器，特别是真空进料器17的简单且低成本的改进的多进给电阻系统90，其中片材堆14由气刀18起飞， 底部片98被真空拉下并且用瓦楞真空带馈送器17从堆叠14的底部送出真空，并且从堆叠14的下面从托盘16馈送出来。特殊的多面耐压或延迟构件的限定区域 已经发现在堆叠14的后部区域92处有效地抵抗多片材料，但是不会干扰有效的底片顺序进给。 双重进给电阻部件92的一个或多个区域覆盖堆叠托盘16的堆叠支撑底表面15的后部或上游部分。这是定向（单向）纤维垫，布或垫材料，纤维94 其向上游倾斜（朝向托盘16的后部）。 这些上游取向纤维94接合第二底层片材96的尾部或上游边缘区域，以抵抗其下游运动，因为最底层片材98最初分离并送出。

    METHOD FOR ACCURATELY FINDING A PHYSICAL LOCATION ON AN IMAGE BEARING SURFACE FOR TONER IMAGES FOR OPTIMAL STREAK CORRECTION
    8.
    发明申请
    METHOD FOR ACCURATELY FINDING A PHYSICAL LOCATION ON AN IMAGE BEARING SURFACE FOR TONER IMAGES FOR OPTIMAL STREAK CORRECTION 有权
    用于精确找到图像轴承表面的物理位置的方法用于调色剂图像进行最佳纹理校正

    公开(公告)号：US20100097621A1

    公开(公告)日：2010-04-22

    申请号：US12254500

    申请日：2008-10-20

    申请人： Ralph Huedepohl ,  Terri A. Clingerman ,  Gerald L. Coy

    发明人： Ralph Huedepohl ,  Terri A. Clingerman ,  Gerald L. Coy

    IPC分类号： G06K15/02

    CPC分类号： G03G15/5033 ,  G03G15/0131 ,  G03G15/5054 ,  G03G2215/00037 ,  G03G2215/00059 ,  G03G2215/00759

    摘要： A method for determining a location on an image bearing surface of an image printing system where a toner image is to be printed is provided. The method comprises generating a first signal from a detector that is configured to detect a reference mark on the image bearing surface, and a second signal from a clock system that counts. incremental movements of the image bearing surface, determining a first value that correlates the first signal and the second signal, where the first value corresponds to a value of the second signal at a start of characterization of the image bearing surface, and determining a second value using the first value, where the second value provides the location on the image bearing surface where the toner image is to be printed.

    摘要翻译： 提供了一种用于确定要打印调色剂图像的图像打印系统的图像承载表面上的位置的方法。 该方法包括从检测器产生第一信号，其被配置为检测图像承载表面上的参考标记，以及来自计数的时钟系统的第二信号。 图像承载表面的增量运动，确定使第一信号和第二信号相关的第一值，其中第一值对应于在图像承载表面的表征开始处的第二信号的值，并且确定第二值 使用第一值，其中第二值提供要在其上打印调色剂图像的图像承载表面上的位置。

    Document handler interdocument gap control system
    10.
    发明授权
    Document handler interdocument gap control system 失效
    文件处理员文件间隙控制系统

    公开(公告)号：US5461468A

    公开(公告)日：1995-10-24

    申请号：US332054

    申请日：1994-10-31

    申请人： Neil J. Dempsey ,  Stephen J. Wenthe, Jr. ,  Gerald L. Coy

    发明人： Neil J. Dempsey ,  Stephen J. Wenthe, Jr. ,  Gerald L. Coy

    IPC分类号： B65H5/00 ,  B65H85/00 ,  G03G15/00 ,  H04N1/00 ,  G03G21/00

    CPC分类号： G03G15/602 ,  B65H5/00 ,  H04N1/0057 ,  H04N1/00578 ,  H04N1/0058 ,  H04N1/00602 ,  H04N1/00652 ,  B65H2511/22 ,  B65H2513/104

    摘要： A document handling system for sequentially feeding document sheets to be imaged with a controlled minimized interdocument gap therebetween even though the sheet separator-feeder sequentially feeds the documents from the stack in the input tray with initial interdocument gap variations to a second transport path portion feeding the document sheets through the imaging station at a constant velocity. A first servo drive feeds the documents in a first path portion including the separator-feeder, and a second servo drive feeds the documents in a second path portion providing the constant velocity. A sheet edge sensor in the first path portion signals the passage of the lead or trail edge of document sheets. A servo controller connecting with the sheet edge sensor and the first servo drive automatically measures the initial interdocument gap variations and change the feeding of document sheets in the first path portion so as to automatically changes the interdocument gap to a preset desired minimum interdocument gap in the second path portion. Preferably the second servo drive has an encoder generating signals proportional to its drive and the servo controller counts these signals between the passage of the trail edge of one document sheet and the passage of the lead edge of the next sequential document sheet past the sheet edge sensor, to calculate control signals for the first servo drive to drive it variably longer at a higher velocity than the second servo drive.

    摘要翻译： 一种文件处理系统，用于顺序地馈送要被成像的文档片材，其间具有受控的最小化的文档间隙，即使片材分离器进料器依次地将来自进料盘中的堆叠的文件馈送到具有初始文档间隙变化的第二传送路径部分， 以恒定的速度通过成像站的文档片材。 第一伺服驱动器将文件馈送在包括分离器进料器的第一路径部分中，并且第二伺服驱动器将文档馈送在提供恒定速度的第二路径部分中。 第一路径部分中的片材边缘传感器用信号通知文件片材的引导线或尾端边缘。 与片材边缘传感器和第一伺服驱动器连接的伺服控制器自动测量初始文件间隙变化，并改变第一路径部分中原稿的进给，以便自动将文档间隙改变为预定的最小文档间隙 第二路径部分。 优选地，第二伺服驱动器具有编码器，其产生与其驱动成比例的信号，并且伺服控制器在一个文件片的尾迹通过与下一个顺序原稿的引导边缘通过片材边缘传感器之间对这些信号进行计数 ，以计算第一伺服驱动器的控制信号，以比第二伺服驱动器更高的速度可变地驱动它。