Method and system for determining improved correction profiles for sheet registration
    72.
    发明申请
    Method and system for determining improved correction profiles for sheet registration 有权
    用于确定纸张登记改进的校正曲线的方法和系统

    公开(公告)号:US20080237975A1

    公开(公告)日:2008-10-02

    申请号:US11731487

    申请日:2007-03-30

    IPC分类号: B65H7/00

    摘要: The presently described embodiments are directed to a method and system for improving sheet registration in a document processing device. The presently described embodiments implement a technique the produces accurate results with merely a small tail wag. To do so, the method ultimately establishes or determines a variety of parameters (e.g. lateral position of a sheet, skew, registration time, nominal sheet velocity, and correction velocity). These parameters are then used by the system to calculate a lateral velocity profile. In this regard, the calculated velocity profiles are applied to the wheels or nips, in the paper path. Thus, the wheels can be controlled and will allow for improved sheet registration in the document processing device.

    摘要翻译: 目前描述的实施例涉及用于改进文件处理装置中的片材登记的方法和系统。 目前描述的实施例实现了仅使用小尾巴摇摆来产生准确结果的技术。 为此,该方法最终建立或确定各种参数(例如,片材的横向位置,偏斜,登记时间,标称纸张速度和校正速度)。 然后系统使用这些参数来计算横向速度分布。 在这方面,计算的速度分布应用于纸张路径中的轮子或胶片。 因此,可以控制车轮并且将允许在文件处理装置中改进的片材登记。

    Color image registration based upon belt and raster output scanner synchronization
    75.
    发明授权
    Color image registration based upon belt and raster output scanner synchronization 有权
    基于皮带和光栅输出扫描仪同步的彩色图像配准

    公开(公告)号:US06456309B1

    公开(公告)日:2002-09-24

    申请号:US09626465

    申请日:2000-07-26

    IPC分类号: B41J2385

    摘要: Color electrophotographic printers having latent image positions synchronized with start-of-scan signals. A laser source projects a laser beam onto a multifaceted rotating polygon that sweeps that beam in a scan line across a moving photoreceptor. A start-of-scan detector produces start-of-scan signals when the laser beam is in position to write a scan line. A belt sensor produces belt signals when indicia on the photoreceptor passes a reference position. A controller receives the belt signals and the start-of-scan and then adjusts the photoreceptors rotational velocity such that the belt signals are an integral multiple of the start-of-scan signals. To reduce the impact of drive roller eccentricities on belt signal to start-of-scan signal timing, the perimeters of photoreceptor roller elements are sub-multiples of the photoreceptor length.

    摘要翻译: 具有与扫描开始信号同步的潜像位置的彩色电子照相打印机。 激光源将激光束投射到多面旋转的多边形上,该扫描线在扫描线上扫过运动的感光体。 当激光束处于写入扫描线的位置时,扫描扫描检测器产生扫描开始信号。 当感光体上的标记通过参考位置时,带传感器产生带信号。 控制器接收皮带信号和扫描开始,然后调节光感受器的旋转速度,使得皮带信号是扫描扫描信号的整数倍。 为了减小驱动辊偏心对皮带信号对起始扫描信号定时的影响,感光鼓元件的周长是感光体长度的次倍数。

    Stitching and color registration control for multi-scan printing
    76.
    发明授权
    Stitching and color registration control for multi-scan printing 有权
    多扫描打印的缝合和颜色配准控制

    公开(公告)号:US06412907B1

    公开(公告)日:2002-07-02

    申请号:US09768707

    申请日:2001-01-24

    IPC分类号: A41J3407

    CPC分类号: B41J11/46

    摘要: An apparatus and method are provided for the use of an optical sensor to determine the position of a printing device relative to a piece of paper or a paper-handling surface. The optical sensor reads marks to detect movement and/or direction of movement or spacing of imprints on the paper. Benefits include swath stitching calibration, color to color registration, producing printing device alignment data and generating information for printing device firing signals. The present invention is applicable to a wide field of printing technologies, including, but not limited to, acoustic ink printing, thermal ink jet printing, piezo ink jet printing, ionographic printing and a variety of other printing technologies involving the need for positioning a printing device relative to a piece of paper.

    摘要翻译: 提供了一种用于使用光学传感器来确定打印装置相对于一张纸或纸张处理表面的位置的装置和方法。 光学传感器读取标记以检测纸张上的移动和/或移动方向或印记的间隔。 优点包括条纹拼接校准,颜色到颜色配准,产生打印设备对准数据和生成打印设备点火信号的信息。 本发明可应用于广泛的印刷技术领域,包括但不限于声学油墨印刷,热喷墨印刷,压电喷墨印刷,离子印刷以及涉及需要定位印刷的各种其它印刷技术 相对于一张纸。

    Method and apparatus for liquid image development and transfer
    77.
    发明授权
    Method and apparatus for liquid image development and transfer 失效
    液体图像显影和转印的方法和装置

    公开(公告)号:US5619313A

    公开(公告)日:1997-04-08

    申请号:US431803

    申请日:1995-05-01

    CPC分类号: G03G15/161 G03G15/1605

    摘要: A method and apparatus for simultaneously developing and transferring a liquid toner image. The method includes the steps of moving a photoreceptor including a charge bearing surface having a first electrical potential, applying a uniform layer of charge having a second electrical potential onto the charge bearing surface, and imagewise dissipating charge from selected portions on the charge bearing surface to form a latent image electrostatically, such that the charge-dissipated portions of the charge bearing surface have the first electrical potential of the charge bearing surface. The method also includes the steps of moving an intermediate transfer member biased to a third electrical potential that lies between said first and said second potentials, into a nip forming relationship with the moving imaging member to form a process nip. The method further includes the step of introducing charged liquid toner, having a fourth electrical potential, into the process nip, such that liquid toner sandwiched within the nip simultaneously develops image portions of the latent image onto the intermediate transfer member, and background portions of the latent image onto the charge bearing surface of the photoreceptor.

    摘要翻译: 一种用于同时显影和转印液体调色剂图像的方法和装置。 该方法包括以下步骤:使包含具有第一电位的电荷承载表面的感光体移动,将具有第二电势的均匀的电荷层施加到电荷承载表面上,以及将从电荷承载表面上的选定部分成像的电荷从 静电形成潜像,使得电荷承载表面的电荷消耗部分具有电荷承载表面的第一电位。 该方法还包括以下步骤:将位于所述第一和所述第二电位之间的偏置到第三电位的中间转印部件移动成与所述运动成像部件形成压区形成关系,以形成工艺辊隙。 该方法还包括将具有第四电位的带电液体调色剂引入加工辊隙中的步骤,使得夹在辊隙内的液体调色剂同时将潜像的图像部分显影到中间转印部件上, 潜像到感光体的载荷表面上。

    Reflex printing
    78.
    发明授权
    Reflex printing 有权
    反光打印

    公开(公告)号:US08376501B2

    公开(公告)日:2013-02-19

    申请号:US12881304

    申请日:2010-09-14

    IPC分类号: B41J29/393 B41J29/38 B41J2/01

    CPC分类号: B41J15/16 B41J11/42

    摘要: The present disclosure provides for an imaging system comprising an image receiving surface which is moved in a downstream direction; a first marking station which applies a first image to the image receiving surface; and, a second marking station, downstream of the first marking station, which applies a second image to the image receiving surface. The imaging system further comprises a first measuring device at a first location at a beginning of a platen which outputs velocity measurement information related to the moving image receiving surface; a second measuring device at a second location at an end of the platen which outputs tension measurement information related to a tension increase in the media receiving surface between the first and second locations; and, a control system in communication with the first and second marking stations, the control system being configured for determining a modified actuation time of at least one of the first and second marking stations based on the information provided by the first and second measuring devices.

    摘要翻译: 本公开提供了一种成像系统,其包括沿下游方向移动的图像接收表面; 将第一图像施加到图像接收表面的第一标记站; 以及在第一标记站的下游的第二标记站,其向图像接收表面施加第二图像。 成像系统还包括在压板开头的第一位置处的第一测量装置,其输出与运动图像接收表面相关的速度测量信息; 第二测量装置,位于压板端部的第二位置处,其输出与第一和第二位置之间的介质接收表面中的张力增加相关的张力测量信息; 以及与所述第一和第二标记站通信的控制系统,所述控制系统被配置为基于由所述第一和第二测量装置提供的信息来确定所述第一和第二标记站中的至少一个的修改的致动时间。

    Extended registration control of a sheet in a media handling assembly
    79.
    发明授权
    Extended registration control of a sheet in a media handling assembly 有权
    在介质处理组件中扩展纸张的对准控制

    公开(公告)号:US08376358B2

    公开(公告)日:2013-02-19

    申请号:US13244627

    申请日:2011-09-25

    IPC分类号: B65H7/02

    摘要: An apparatus including a sheet registration nip assembly for changing characteristics of the sheet with respect to the transport path. The characteristics of the sheet including a skew position, process direction position or a lateral position of the sheet. The registration nip assembly changing a first sheet characteristic to a first target characteristic by the time the sheet reaches a preliminary registration datum. A delivery registration datum disposed downstream of the registration nip assembly. The registration nip assembly changing a second sheet characteristic to a second target characteristic when at least a portion of the sheet is disposed along the transport path between the preliminary registration datum and the delivery registration datum. The apparatus including an auxiliary nip assembly disposed between the delivery registration datum and the registration nip assembly, wherein the preliminary registration datum is disposed between the delivery registration datum and the auxiliary nip assembly.

    摘要翻译: 一种包括用于改变纸张相对于输送路径的特性的纸张对齐夹持组件的装置。 片材的特征包括片材的偏斜位置,处理方向位置或横向位置。 登记辊隙组件在片材达到初步登记基准时将第一片材特性改变为第一目标特性。 设置在配准辊隙组件下游的输送登记基准。 当片材的至少一部分沿预先登记基准和递送登记基准之间的传送路径设置时,登记夹具组件将第二片材特性改变为第二目标特性。 所述设备包括设置在输出登记基准和配准辊隙组合之间的辅助辊隙组件,其中预备对准基准设置在输送登记基准和辅助压区组合之间。

    CLOSED LOOP LATERAL AND SKEW CONTROL
    80.
    发明申请
    CLOSED LOOP LATERAL AND SKEW CONTROL 有权
    封闭环路和脚踏控制

    公开(公告)号:US20110156345A1

    公开(公告)日:2011-06-30

    申请号:US12647765

    申请日:2009-12-28

    IPC分类号: B65H9/00

    摘要: According to aspects illustrated herein, a method, a system, and a printmaking device for performing closed loop lateral and skew control of a sheet is provided. The printmaking device includes a feed path, printing module, and sheet registration system. First, the feed path moves the sheet in a process direction past the lateral sensor. Next, the sheet is registered by measuring a lateral position of one side edge of the sheet at a fixed reference using the lateral sensor and determining a lateral position error of the sheet using the lateral position measurement. After that, a sheet angular velocity is calculated based on the lateral position error using the registration controller. Then, the lateral position error is corrected using the at least one pair of registration nips to adjust the sheet by applying the sheet angular velocity to the sheet.

    摘要翻译: 根据本文所示的方面,提供了一种用于执行片材的闭环横向和偏斜控制的方法,系统和版权制造装置。 该印版装置包括一馈送路径,打印模块和纸张登记系统。 首先,进给路径使片材沿着处理方向移动通过横向传感器。 接下来,通过使用横向传感器以固定的基准测量片材的一个侧边缘的横向位置来记录片材,并使用横向位置测量来确定片材的横向位置误差。 之后,使用登记控制器基于横向位置误差来计算纸张角速度。 然后,使用至少一对对准夹头校正横向位置误差,以通过将片材角速度施加到片材来调节片材。