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    • 4. 发明授权
    • 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
    • US07422211B2
    • 2008-09-09
    • US11040396
    • 2005-01-21
    • Joannes N M DejongLloyd A. WilliamsBarry P. MandelMartin Krucinski
    • Joannes N M DejongLloyd A. WilliamsBarry P. MandelMartin Krucinski
    • B65H9/16
    • 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. 发明授权
    • Side edge sheet curler for sheet hold down devices
    • 侧边卷边机用于压板装置
    • US09139388B2
    • 2015-09-22
    • US12558113
    • 2009-09-11
    • Lloyd A. WilliamsRuddy CastilloJoannes N. M. deJong
    • Lloyd A. WilliamsRuddy CastilloJoannes N. M. deJong
    • B65H5/06
    • B65H5/062B65H2301/44334B65H2301/44336B65H2301/51214B65H2701/1315B65H2801/06
    • A device is provided for curling side edges of a sheet of media to be held down by a hold down system in an image production system. The device has a first shaped element having an outer section, the outer section of the first shaped element pointing in a first direction; a second shaped element having an outer section, the outer section of the second shaped element pointing in a second direction opposite the first direction; a first pinching element adjacent to the first shaped element, a first pathway being formed between the first pinching element and the first shaped element; and a second pinching element adjacent to the second shaped element, a second pathway being formed between the second pinching element and the second shaped element. The first pathway is for forming an edge curl on a first side edge of the sheet of media, the second pathway is for forming an edge curl on a second side edge of the sheet of media, the second side edge is parallel to the first side edge, and the first and second side edges are parallel to a process direction in which the sheet of media is fed into the device.
    • 提供了一种用于在图像生产系统中卷曲由待压系统压住的介质片的侧边缘的装置。 该装置具有第一成形元件,其具有外部部分,第一成形元件的外部部分指向第一方向; 第二成形元件,具有外部部分,第二成形元件的外部部分指向与第一方向相反的第二方向; 与所述第一成形元件相邻的第一夹持元件,形成在所述第一夹持元件和所述第一成形元件之间的第一路径; 以及与所述第二成形元件相邻的第二夹紧元件,形成在所述第二夹持元件和所述第二成形元件之间的第二通道。 所述第一路径用于在所述介质片的第一侧边缘上形成边缘卷曲,所述第二路径用于在所述介质片的第二侧边缘上形成边缘卷曲,所述第二侧边缘平行于所述第一侧 边缘,并且第一和第二侧边缘平行于介质片材被馈送到装置中的处理方向。