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    Duplex printing
    3.
    发明授权
    Duplex printing 有权

    公开(公告)号：US10525742B2

    公开(公告)日：2020-01-07

    申请号：US16174038

    申请日：2018-10-29

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Cesar Fernandez ,  Jose Galmes ,  Alisher Alikhodjaev

    IPC: B41J11/46 ,  B41J3/60

    Abstract: In one example a method is disclosed for printing duplex images. The method includes printing an image on side A of media, including an alignment mark. Detecting the alignment mark with a sensor. The velocity of the media is determined when the alignment mark is detected. Printing an image on side B of the media where the location of the image on side B is dependent on the velocity of the media. In another example a printer is disclosed that uses the method to print duplex images.

    Front-to-back registration of printed content
    6.
    发明授权
    Front-to-back registration of printed content 有权

    公开(公告)号：US10144211B2

    公开(公告)日：2018-12-04

    申请号：US15308897

    申请日：2014-07-24

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Cesar Fernandez ,  Srinivas Bhakthavatsalam ,  Carlos Millan

    IPC: B41F13/02 ,  B41F27/00 ,  B41J2/21 ,  B41J3/60 ,  B41J11/46 ,  B41J15/04 ,  G06K15/02

    Abstract: Examples disclosed herein relate to front-to-back registration of a printed content onto a print medium. In one example, a trigger signal generated by a sensor upon detection of a trigger mark on a first surface of a print medium is received. The trigger mark includes a leading edge and a trailing edge, wherein the leading edge and the trailing edge are non-parallel. Based on the trigger signal, a distance of the trailing edge from a point on the leading edge is determined. Once determined, a measure of lateral wander of the print medium with respect to the print path is obtained. The measure of the lateral wander is determined by comparing the distance between the leading edge and the trailing edge, with a threshold value.

    FRONT-TO-BACK REGISTRATION OF PRINTED CONTENT
    7.
    发明申请
    FRONT-TO-BACK REGISTRATION OF PRINTED CONTENT 审中-公开
    印刷内容的前后注册

    公开(公告)号：US20170057213A1

    公开(公告)日：2017-03-02

    申请号：US15308897

    申请日：2014-07-24

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Cesar Fernandez ,  Srinivas Bhakthavatsalam ,  Carlos Millan

    IPC: B41F27/00

    CPC classification number: B41F27/005 ,  B41J2/2135 ,  B41J2/2146 ,  B41J3/60 ,  B41J11/46 ,  B41J15/04 ,  G06K15/1868

    Abstract: Examples disclosed herein relate to front-to-back registration of a printed content onto a print medium. In one example, a trigger signal generated by a sensor upon detection of a trigger mark on a first surface of a print medium is received. The trigger mark includes a leading edge and a trailing edge, wherein the leading edge and the trailing edge are non-parallel. Based on the trigger signal, a distance of the trailing edge from a point on the leading edge is determined. Once determined, a measure of lateral wander of the print medium with respect to the print path is obtained. The measure of the lateral wander is determined by comparing the distance between the leading edge and the trailing edge, with a threshold value.

    Abstract translation: 本文公开的示例涉及打印内容到打印介质上的前后对准。 在一个示例中，接收在打印介质的第一表面上检测到触发标记时由传感器产生的触发信号。 触发标记包括前缘和后缘，其中前缘和后缘是不平行的。 基于触发信号，确定后缘与前缘上的点的距离。 一旦确定，获得打印介质相对于打印路径的横向漂移的量度。 通过将前缘和后缘之间的距离与阈值进行比较来确定横向漂移的度量。

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