Method and apparatus for detecting slip in a sheet transport system
    4.
    发明公开
    Method and apparatus for detecting slip in a sheet transport system 有权
    在eeemBlattfördertsystem中的Verfahren und Vorrichtung zum Detektieren von Schlupf

    公开(公告)号:EP0897886A2

    公开(公告)日:1999-02-24

    申请号:EP98306309.0

    申请日:1998-08-06

    申请人: XEROX CORPORATION

    IPC分类号: B65H7/06

    摘要: The printing apparatus according to the present invention includes a system for pre-warning of impending shutdown due to slippage of sheets within the printing apparatus sheet transport system (26). The system includes a plurality of sensors (S1,S2,S3) positioned along a sheet transport path for sensing sheets moving along the sheet transport path and a controller for determining an amount and location of slip within the sheet transport path by comparing outputs of the plurality of sensors. Once the location of the slip has been determined, automatic correction may be performed by the printing apparatus or manual correction may be performed by a service representative.

    摘要翻译: 根据本发明的打印装置包括用于由于打印设备片材传送系统(26)内的片材的滑动而预警即将关闭的系统。 该系统包括沿着纸张传送路径定位的多个传感器(S1,S2,S3),用于检测沿着纸张传送路径移动的纸张;以及控制器,用于通过比较纸张传送路径的输出来确定纸张传送路径中的纸张的数量和位置 多个传感器。 一旦确定了单据的位置,则可以由打印设备执行自动校正,或者可以由服务代表执行手动校正。

    Edge registration system
    6.
    发明公开
    Edge registration system 有权
    Anordnung zur Kantbestimmung

    公开(公告)号:EP0911651A3

    公开(公告)日:2000-03-15

    申请号:EP98308370.0

    申请日:1998-10-14

    申请人: XEROX CORPORATION

    IPC分类号: G03G15/00 B65H9/20

    摘要: A method of electronically determining the location of an edge of a copy substrate (710) to be printed on places the copy substrate (710) between a segmented linear light source (700) and a linear sensor array (712) and a light segment of the linear light source (700) is illuminated. An edge location (X co ) of a shadow created by the copy substrate (710) intersecting the light path between the illuminated light segment and the linear sensor array (712) is measured, and the location of the edge of the copy substrate (710) is calculated based on the measured shadow location (X co ). A second light segment of the linear light source on an opposite side of an expected copy substrate edge position of the light source can also be illuminated, and a second edge location of a shadow created by the copy substrate (710) intersecting the light path be measured wherein this second measurement can be used with the first to calculate the location of the edge of the copy substrate (710). Alternatively, the calculated location can be used to determine a light segment of the linear light source which corresponds to the calculated location. This determined light source is illuminated and the shadow measured. The new measurement is used to calculate the edge of the copy substrate (710).

    摘要翻译: 一种电子地确定待印刷的复制衬底(710)的边缘的位置的方法,其将复制衬底(710)放置在分段线性光源(700)和线性传感器阵列(712)之间,并且 线性光源(700)被照亮。 测量由与照明光段和线性传感器阵列(712)之间的光路相交的复制衬底(710)产生的阴影的边缘位置(Xco),并且复制衬底(710)的边缘的位置 基于测量的阴影位置(Xco)计算。 在光源的期望的复印基板边缘位置的相对侧上的线性光源的第二光段也可以被照亮,并且由与光路相交的复制基板(710)产生的阴影的第二边缘位置是 测量其中该第二测量可以与第一测量结合使用以计算复印衬底(710)的边缘的位置。 或者,所计算的位置可以用于确定对应于所计算的位置的线性光源的光段。 该确定的光源被照亮并且测量了阴影。 新的测量用于计算复印衬底的边缘(710)。

    Paper registration method and system
    9.
    发明公开
    Paper registration method and system 有权
    Verfahren und System zum Ausrichten von Papier

    公开(公告)号:EP1510485A2

    公开(公告)日:2005-03-02

    申请号:EP04255075.6

    申请日:2004-08-24

    申请人: Xerox Corporation

    发明人: Carolan, Kevin M.

    IPC分类号: B65H9/10

    摘要: A method and system for correcting paper registration skew. A skew or paper registration error of a sheet moving in a feed path is detected. A coarse adjustment, or copy paper registration, using full steps is performed until the registration error is reduced to a minimum value, below a full step. The frequency of one motor (18,20) with respect to the other, or a reference, or reference motors, is adjusted for a fixed period to enable a fine adjustment to correct the registration error.

    摘要翻译: 一种用于校正纸张登记偏差的方法和系统。 检测在进给路径中移动的纸张的偏斜或纸张配准误差。 执行粗调或复印纸注册,使用全部步骤,直到注册错误降低到最小值,低于完整步长。 一个电动机(18,20)相对于另一个电动机(参考电动机)或参考电动机的频率被调整固定周期,以便进行微调以校正注册误差。

    Edge registration system
    10.
    发明公开
    Edge registration system 有权
    边缘注册系统

    公开(公告)号:EP0911701A3

    公开(公告)日:2000-02-23

    申请号:EP98308390.8

    申请日:1998-10-14

    申请人: XEROX CORPORATION

    IPC分类号: G03G15/00 B65H9/20

    摘要: A system electronically determines an edge of a copy substrate (710) to be printed on. A copy substrate (710) is inserted between a segmented linear light source array (700) and a linear sensor array (712) and a light segment of the linear light source array (700) is illuminated. An edge location of a shadow created by the copy substrate (710) intersecting the light path between the illuminated light segment and the linear sensor array (712) is measured, and the location of the edge of the copy substrate (710) is calculated based on the measured shadow location. A way of calibrating such a system uses a claibrate tool (800) inlcuding a slot of width Δx, and measures the shadows cast by its edges with the tool at two different heights between the light source (700) and the sensor array (712).

    摘要翻译: 系统以电子方式确定要打印的复制基板(710)的边缘。 将复制基板(710)插入分段线性光源阵列(700)和线性传感器阵列(712)之间,并且照亮线性光源阵列(700)的光段。 测量由复制基板(710)与照明光段和线性传感器阵列(712)之间的光路交叉所产生的阴影的边缘位置,并且基于复制基板(710)的边缘的位置 在测量的阴影位置上。 校准这种系统的方法使用包括宽度为Δx的槽的校准工具(800),并测量在光源(700)和传感器阵列(712)之间的两个不同高度处由工具边缘投射的阴影, 。