Duplex printing system
    1.
    发明授权
    Duplex printing system 失效
    双面打印系统

    公开(公告)号:US06912952B1

    公开(公告)日:2005-07-05

    申请号:US10089645

    申请日:2000-02-07

    IPC分类号: G03G15/23 B41F1/30

    CPC分类号: G03G15/234

    摘要: Apparatus for duplex printing comprising: a first impression roller (24) on which a first side of a sheet (22) having a leading edge and a trailing edge is printed referenced to the leading edge; a second impression roller (26) on which a second side of the sheet is printed; and a transport system (20) that removes a printed sheet from the first impression roller (24) and transports it to the second impression roller (26), the transport system comprising a perfector (32) that receives the sheet and grips it along both the leading and trailing edges of the sheet, which perfector turns the sheet over and transfers the sheet trailing edge first towards the second impression roller.

    摘要翻译: 一种用于双面打印的设备,包括:第一压印辊(24),以前缘为基准印刷具有前缘和后缘的纸张(22)的第一面; 第二压印辊(26),其上印刷有片材的第二面; 以及从第一压印辊(24)移除印刷纸并将其输送到第二压印辊(26)的传送系统(20),所述传送系统包括接收纸张并沿着它们抓握的整形器(32) 片材的前缘和后缘,该完整器将片材翻转并首先将片材后缘转移到第二压印辊。

    Tandem printing system with fine paper-position correction
    2.
    发明授权
    Tandem printing system with fine paper-position correction 失效
    串行打印系统,具有良好的纸位置校正功能

    公开(公告)号:US06823786B1

    公开(公告)日:2004-11-30

    申请号:US10089631

    申请日:2002-08-05

    IPC分类号: B41F502

    摘要: A tandem printer with a mechanism for fine substrate-position correction, comprising: a first printing station; a second printing station; a rotatable element, rotating at a given rotation rate, that receives the substrate after printing thereon by the first printing station and transfer the substrate toward the second printing station; a sensor which measure the position of an edge of the substrate during its transfer from the first printing station to the second printing station; and a controller, which applies a corrective step change in angular position of the rotatable element responsive to the measurements of the sensor, without changing the general rotation rate of the rotatable element.

    摘要翻译: 一种具有用于精细衬底位置校正的机构的串联式打印机,包括:第一印刷站; 第二印刷站; 可旋转元件,以给定的旋转速度旋转,所述旋转元件在由所述第一印刷站在其上打印之后接收所述基板并将所述基板转移到所述第二印刷台; 传感器,其在从所述第一印刷站传送到所述第二印刷台期间测量所述基板的边缘的位置; 以及控制器,其响应于传感器的测量而对可旋转元件的角位置进行校正阶跃改变,而不改变可旋转元件的总体旋转速率。

    Automatic registration and length adjustment
    3.
    发明授权
    Automatic registration and length adjustment 有权
    自动注册和长度调整

    公开(公告)号:US06456311B1

    公开(公告)日:2002-09-24

    申请号:US09889066

    申请日:2001-07-06

    IPC分类号: G03L1501

    摘要: A method for registration of print separations in a printer comprising: (a) printing a first pattern, for which at least one image characteristic varies relatively weakly with misregistration, using at least one of first and second separations; (b) printing a second pattern, for which said at least one image characteristic varies relatively strongly with misregistration, using said at least one first and second separations; (c) determining said at least one image characteristic for the first and second patterns; and (d) correcting the mutual registration of said at least one first and second separations responsive to a difference in the determined at least one image characteristic for the first and second patterns.

    摘要翻译: 一种用于在打印机中记录打印分离的方法,包括:(a)使用第一和第二分离中的至少一个打印第一图案,其中至少一个图像特征随着重合失调相对较弱地变化; (b)使用所述至少一个第一和第二分离来打印第二图案,其中所述至少一个图像特征随着对准而相对强烈地变化; (c)确定所述第一和第二图案的所述至少一个图像特征; 以及(d)响应于所确定的第一和第二图案的至少一个图像特性的差异,校正所述至少一个第一和第二分离的相互配准。