Automatic image quality control of marking processes
    1.
    发明申请
    Automatic image quality control of marking processes 有权
    自动图像质量控制标记过程

    公开(公告)号:US20070263238A1

    公开(公告)日:2007-11-15

    申请号:US11432924

    申请日:2006-05-12

    IPC分类号: G06F15/00

    摘要: A first series of control patches is printed with a first marking engine. A second series of control patches is printed with a second marking engine. Relative reflectance values of the patches printed with the first and second marking engines are measured with respective first and second engine response sensors. Based at least on a difference in the measured relative reflectance values of the control patches printed with the first and second marking engines, a relative engine to engine error is determined. The engine to engine error is decomposed into components. Based on the decomposition, adjustment of at least binary values of a digital image is determined so that print density of a first marking engine output substantially matches print density of a second marking engine output.

    摘要翻译: 第一系列控制补丁打印有第一个标记引擎。 第二系列控制补丁用第二个标记引擎打印。 用第一和第二引擎响应传感器测量用第一和第二标记引擎打印的贴片的相对反射率值。 至少基于用第一和第二标记引擎打印的控制补丁的测量相对反射率值的差异,确定相对发动机与发动机误差。 发动机发动机故障分解成部件。 基于分解,确定数字图像的至少二进制值的调整,使得第一标记引擎输出的打印密度基本上匹配第二标记引擎输出的打印浓度。

    Method of automatically setting document registration and locating
calibration strip
    3.
    发明授权
    Method of automatically setting document registration and locating calibration strip 失效
    自动设置文档注册和定位校准条的方法

    公开(公告)号:US5091654A

    公开(公告)日:1992-02-25

    申请号:US573825

    申请日:1990-08-28

    摘要: A method of locating the position of an object on the platen of a raster input scanner having a movable scan carriage and an extended array of scanners is disclosed. The method includes the steps of obtaining a previously stored theoretical position of the object from a memory, locating the scan carriage at a position spaced a predetermined distance from the previously stored position, moving the scan carriage toward the previously stored position while operating at least some of the scanners until a target on the object is detected by the operating scanners, and storing a target position of the scan carriage where the target is detected. The target position can represent the location of the scanner's calibration strip or the registration position of a document. After the target position is stored, the scan carriage can be located at the target position for calibrating the scanners if the target position represents the location of the calibration strip. Alternatively, the scan carriage can be located at the target position prior to actuating the scanners for each subsequent document to be scanned if the target position represents a document registration position. This procedure is repeated to determine the document registration positions for documents which are placed on the platen manually, by an SADH or SALDH input, by a CFF input, or by an RDH input.

    摘要翻译: 公开了一种将物体的位置定位在具有可移动扫描托架和扩展的扫描器阵列的光栅输入扫描器的压板上的方法。 该方法包括以下步骤:从存储器获得物体的先前存储的理论位置,将扫描托架定位在与先前存储的位置间隔预定距离的位置,将扫描托架移动到先前存储的位置,同时操作至少一些 的扫描器,直到操作扫描仪检测到物体上的目标,并且存储检测到目标的扫描托架的目标位置。 目标位置可以表示扫描仪的校准条的位置或文档的注册位置。 在存储目标位置之后,如果目标位置表示校准条的位置,则扫描托架可以位于目标位置以校准扫描器。 或者,如果目标位置表示文档登记位置,则扫描托架可以在对于要扫描的每个后续文档的致动扫描器之前位于目标位置。 重复此过程以通过手动,SADH或SALDH输入,CFF输入或RDH输入手动放置在压板上的文档的文档注册位置。