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    Media registration systems and methods
    3.
    发明申请
    Media registration systems and methods 审中-公开
    媒体注册系统和方法

    公开(公告)号：US20070023994A1

    公开(公告)日：2007-02-01

    申请号：US11194823

    申请日：2005-08-01

    申请人： Barry Mandel ,  Martin Krucinski ,  Joannes deJong ,  Lloyd Williams

    发明人： Barry Mandel ,  Martin Krucinski ,  Joannes deJong ,  Lloyd Williams

    IPC分类号： B65H9/00

    CPC分类号： B65H9/002 ,  B65H2404/14 ,  B65H2513/104 ,  B65H2515/706 ,  B65H2220/01 ,  B65H2220/02

    摘要： Embodiments herein measure current/voltage levels of a drive motor when media is in contact with a drive roller so as to determine the drive force imparted by the drive rollers on the media. Then, embodiments herein can reference the predetermined relationship between roller drive force and media/drive roller velocity ratios to determine a difference between the velocity of the drive roller and the velocity the media based on the drive force. Once this velocity difference is determined, embodiments herein can change the current/voltage levels being applied to the drive motor if the actual velocity of the media is different than the intended velocity of the media so as to correct the velocity of the media. Thus, when referencing the predetermined relationship, embodiments herein produce a velocity ratio correction factor. This velocity ratio correction factor can be applied continuously during any velocity profile of the drive motor, or it can be used to calculate the accumulated error in sheet position and then to apply a correction near the end of the velocity profile.

    摘要翻译： 本文的实施例测量介质与驱动辊接触时的驱动马达的电流/电压水平，以便确定驱动辊在介质上施加的驱动力。 然后，这里的实施例可以参考辊驱动力和介质/驱动辊速度比之间的预定关系，以确定驱动辊的速度与基于驱动力的介质速度之间的差异。 一旦确定了该速度差，如果介质的实际速度不同于介质的预期速度，以便校正介质的速度，本文中的实施例可以改变施加到驱动马达的电流/电压电平。 因此，当参考预定关系时，这里的实施例产生速度比校正因子。 该速度比校正因子可以在驱动电机的任何速度分布下连续应用，也可以用于计算纸张位置的累积误差，然后在速度分布结束附近应用校正。

    Method and system of paper registration for two-sided imaging
    7.
    发明申请
    Method and system of paper registration for two-sided imaging 有权
    双面成像纸张注册方法和系统

    公开(公告)号：US20070025788A1

    公开(公告)日：2007-02-01

    申请号：US11193591

    申请日：2005-07-29

    申请人： Joannes deJong ,  Lloyd Williams

    发明人： Joannes deJong ,  Lloyd Williams

    IPC分类号： G03G15/00

    CPC分类号： G03G15/6567 ,  G03G15/235 ,  G03G15/6564 ,  G03G2215/00561 ,  G03G2215/00721 ,  G03G2215/00734

    摘要： A registration and measurement system for a printing machine includes two drive rollers and two opposing idler rollers. Each drive roller and idle roller combination respectively form a drive nip. A single servo or stepper motor is operably connected to the drive rollers through a gear train, allowing the motor to drive the sheet feeding nips. A rotary encoder is attached to each idler roller. Optical sensors are provided above a desired sheet path. The optical sensors and the rotary encoders are connected to a controller and are operable to deliver output signals to the controller. The controller is operable to determine the length of a sheet passing through the nips based upon the signals received from the optical sensors and the rotary encoders.

    摘要翻译： 印刷机的配准和测量系统包括两个驱动辊和两个相对的惰辊。 每个驱动辊和空转辊组合分别形成驱动压区。 单个伺服或步进电动机通过齿轮系可操作地连接到驱动辊，允许电动机驱动片材进给辊隙。 一个旋转编码器连接到每个惰轮上。 光学传感器设置在所需的纸张路径上方。 光学传感器和旋转编码器连接到控制器并且可操作以将输出信号传送到控制器。 控制器可操作以基于从光学传感器和旋转编码器接收的信号来确定通过辊隙的纸张的长度。

    Print media registration using active tracking of idler rotation
    8.
    发明申请
    Print media registration using active tracking of idler rotation 有权
    使用主动跟踪惰轮旋转打印介质注册

    公开(公告)号：US20050263958A1

    公开(公告)日：2005-12-01

    申请号：US10855451

    申请日：2004-05-27

    申请人： David Knierim ,  Lloyd Williams ,  Joannes deJong

    发明人： David Knierim ,  Lloyd Williams ,  Joannes deJong

    IPC分类号： B65H9/00 ,  B65H9/10 ,  B65H5/02 ,  B65H7/02 ,  B65H5/04

    CPC分类号： B65H9/006 ,  B65H9/002 ,  B65H2220/09 ,  B65H2301/331 ,  B65H2404/143 ,  B65H2553/51

    摘要： More accurately correcting sheet position and skew in a desired print media sheet trajectory in a printer paper path, with a registration system including sheet drive nips defined by laterally spaced and differentially driven elastomer surfaced frictional sheet drive rollers and mating undriven idler rollers have a non-slip rotational sheet engagement. The undriven idler rollers have rotary encoders producing encoder signals corresponding to their rotation by a sheet in the nip, which encoder signals are provided to a controller for the registration system to control forward and differential drive motor systems for the sheet drive rollers so as to substantially correct for errors in the desired trajectory of said sheet by sheet drag forces acting on the elastomer surfaced sheet drive rollers in the sheet drive nips.

    摘要翻译： 在打印机纸张路径中更准确地校正纸张位置和期望的打印介质纸张轨迹中的偏斜，其中包括由横向间隔开的差分驱动的弹性体表面的摩擦片材驱动辊和配合的未驱动的惰辊定义的纸张驱动辊隙的配准系统具有非 - 滑动旋转片接合。 未驱动的惰辊具有旋转编码器，其产生对应于其在辊隙中的片材的旋转的编码器信号，该编码器信号被提供给用于配准系统的控制器，以控制片材驱动辊的前进和差速驱动马达系统， 纠正作用在片材驱动夹头中的弹性体表面的片材驱动辊上的所述片材牵引力的期望轨迹中的误差。

    Printer using hybrid reflex writing to color register an image
    10.
    发明申请
    Printer using hybrid reflex writing to color register an image 有权
    打印机使用混合反射写入颜色来注册图像

    公开(公告)号：US20060024104A1

    公开(公告)日：2006-02-02

    申请号：US10909075

    申请日：2004-07-30

    申请人： Vittorio Castelli ,  Joannes deJong ,  Lloyd Williams ,  Matthew Dondiego ,  William Nowak

    发明人： Vittorio Castelli ,  Joannes deJong ,  Lloyd Williams ,  Matthew Dondiego ,  William Nowak

    IPC分类号： G03G15/00

    CPC分类号： G03G15/0163 ,  G03G2215/0119 ,  G03G2215/0158 ,  G03G2215/0187

    摘要： 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.

    摘要翻译： 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。