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    • 5. 发明申请
    • Lateral and skew registration using closed loop feedback on the paper edge position
    • 在纸张边缘位置使用闭环反馈的横向和偏斜配准
    • US20060163801A1
    • 2006-07-27
    • US11040396
    • 2005-01-21
    • Joannes DejongLloyd WilliamsBarry MandelMartin Krucinski
    • Joannes DejongLloyd WilliamsBarry MandelMartin Krucinski
    • B65H7/02
    • B65H9/002B65H9/101B65H2301/331B65H2511/242B65H2511/514B65H2701/1315B65H2220/01
    • A closed loop feedback method that continuously adjusts the lateral and skew position of a sheet includes a first sensor that is used to measure lateral sheet edge position. A second sensor measures the lateral sheet edge position at a certain distance from the first sensor. Sheet skew values can thus be calculated. Lateral and skew controllers provide outputs to lateral and skew actuators, respectively, to adjust the sheet position. A different method of registering sheets laterally and in skew enables active sheet deskew without translating the sheet in the cross-process direction. A sensor carriage position is controlled to find the sheet edge after which deskew control can start. The average value of the carriage position can then be fed in a feedforward manner to move the image location to match the average paper position. This achieves good average lateral registration and active skew control at a reduced cost.
    • 连续地调整片材的横向和偏斜位置的闭环反馈方法包括用于测量侧片边缘位置的第一传感器。 第二传感器测量距离第一传感器一定距离的侧片边缘位置。 因此可以计算纸张偏移值。 横向和偏斜控制器分别为侧向和偏斜执行器提供输出,以调整纸张位置。 在横向和歪斜的情况下对纸张进行登记的不同方法使活动的纸张不会将纸张在交叉过程方向上平移。 控制传感器支架位置以找到可以开始去歪斜控制的纸张边缘。 然后可以以前馈方式馈送托架位置的平均值,以移动图像位置以匹配平均纸张位置。 这以较低的成本实现了良好的平均横向配准和主动偏斜控制。
    • 7. 发明申请
    • Printer using hybrid reflex writing to color register an image
    • 打印机使用混合反射写入颜色来注册图像
    • US20060024104A1
    • 2006-02-02
    • US10909075
    • 2004-07-30
    • Vittorio CastelliJoannes deJongLloyd WilliamsMatthew DondiegoWilliam Nowak
    • Vittorio CastelliJoannes deJongLloyd WilliamsMatthew DondiegoWilliam Nowak
    • G03G15/00
    • G03G15/0163G03G2215/0119G03G2215/0158G03G2215/0187
    • An imaging device for producing multicolor images from image data containing data representing an image of a first color and an image of a second color to be registered relative to the image of the first color onto a substrate by transferring toner of the first and second colors to the substrate is provided. The imaging device comprises a first imager, a second imager, a photoreceptor belt, a plurality of rollers mounted to a frame of the imaging device, an angular position sensor, an image data source and a controller. The plurality of rollers define a process path along which the photoreceptor belt is driven past the first and second imagers in a process direction. The plurality of rollers comprises a drive roller that exhibits an eccentricity for which a formula relating angular position as a function of the phase angle of the drive roller to eccentricity is known. The angular position sensor detects the phase angle of the drive roller. The image data source generates image data that includes a line to be printed in the first color and in the second color. The controller is coupled to receive signals from the angular position sensor, ROS imager and image data source and is configured to drive the second imager to generate an optical output. The controller includes memory and a processor. The memory stores the formula relating angular position as a function of the phase angle of the drive roller to eccentricity. The processor calculates an appropriate time delay for starting the generation of the optical output of the second imager for printing the line to be printed in the first color and in the second color based on the time of the starting of the optical output by the ROS imager to print to print that line, the signal received from the angular position sensor, and the formula relating angular position as a function of the phase angle of the drive roller to eccentricity.
    • 一种成像装置,用于通过将第一颜色和第二种颜色的调色剂转印到基底上,从包含表示第一颜色和第二颜色的第二颜色的图像的数据的图像数据生成多色图像, 提供基板。 成像装置包括第一成像器,第二成像器,感光带,安装到成像装置的框架的多个辊,角位置传感器,图像数据源和控制器。 多个辊限定了沿着处理方向驱动感光带穿过第一和第二成像器的处理路径。 多个辊包括驱动辊,该驱动辊具有偏心度,对于该偏心,将与驱动辊的相位角相关的角位置与偏心度相关联的公式是已知的。 角位置传感器检测驱动辊的相位角。 图像数据源产生包括要以第一颜色和第二颜色打印的行的图像数据。 控制器被耦合以从角位置传感器,ROS成像器和图像数据源接收信号,并且被配置为驱动第二成像器以产生光输出。 控制器包括存储器和处理器。 存储器存储关于角位置作为驱动辊的相位角与偏心度的函数的公式。 处理器基于ROS成像器的光输出开始时间计算用于开始生成第二成像器的光输出的适当时间延迟,用于以第一颜色和第二颜色打印要打印的行 打印以打印该线,从角位置传感器接收的信号,以及将作为驱动辊的相位角的函数的角位置与偏心相关的公式。
    • 8. 发明授权
    • Advertising display
    • 广告显示
    • US4176486A
    • 1979-12-04
    • US813868
    • 1977-07-08
    • Lloyd Williams
    • Lloyd Williams
    • G09F7/18G09F23/00
    • G09F7/18G09F23/00G09F2023/0025
    • A display frame, which carries a sheet of mylar metalized to provide a mirror and an advertising display placard, is provided with a number of straps disposed for coaction with a turnbuckle type mounting device to securely position the display upon pillars of I-beam configuration such as those found in subway and train stations. The turnbuckle assembly of the mounting device is such as to exert compressive forces against opposed inner faces of the I-beam flanges and, in one embodiment, coacts with straps secured to the rear wall of the display to mount the display across the edges of said I-beam flanges so as to hide the mounting means in the space behind the display and between the flanges and web of the I-beam pillar.The display frame is formed with one or more advertising placard mounting sections formed with grooves to facilitate positioning and easy removal of the placards which carry an advertising message. Such display sections in some embodiments are at an angle with respect to the mirror. A fluorescent lighting fixture, carried by some embodiments of display frames, is disposed behind the placard display section and for translucent placards to provide a back-light for the message.
    • 携带金属化以提供镜子和广告显示标牌的聚酯薄片的显示框架设置有多个带子,其设置用于与螺丝扣式安装装置协同工作,以将显示器牢固地定位在I形梁构造的支柱上, 如在地铁和火车站发现的那样。 安装装置的螺丝扣组件是为了对I型梁凸缘的相对的内表面施加压缩力,并且在一个实施例中,与固定到显示器的后壁的带相结合,以将显示器安装在所述 工字梁法兰,以便将安装装置隐藏在显示器后面的空间以及I型梁柱的法兰和腹板之间。 显示框架由形成有凹槽的一个或多个广告标牌安装部分形成,以便于定位和容易地移除携带广告消息的标语牌。 在一些实施例中,这种显示部分相对于反射镜成一角度。 通过显示框架的一些实施例携带的荧光灯具被布置在标语牌显示部分后面,并且用于半透明标牌以为消息提供背光。