Selecting a calibration function for a digital printer which minimizes
an error criterion
    1.
    发明授权
    Selecting a calibration function for a digital printer which minimizes an error criterion 失效
    选择最小化错误标准的数字打印机的校准功能

    公开(公告)号:US5956469A

    公开(公告)日:1999-09-21

    申请号:US896713

    申请日:1997-07-18

    IPC分类号: H04N1/60 H04N1/40

    CPC分类号: H04N1/6033

    摘要: A method and apparatus are disclosed for calibrating a digital printer to provide a substantially aim printer response. A test target is processed through a set of potential calibration functions to form a set of processed test targets and the set of processed test targets is printed using the digital printer. Thereafter, the set of printed test targets is measured to determine the printer response. An error criterion is determined for each measured test target by comparing the measured printer response for each of the set of potential calibration functions to the aim printer response. The calibration function which has the smallest value of the error criterion is then selected.

    摘要翻译: 公开了一种用于校准数字打印机以提供基本上瞄准打印机响应的方法和装置。 通过一组潜在的校准功能处理测试目标,以形成一组经过处理的测试目标,并使用数字打印机打印一组已处理的测试目标。 此后,测量一组打印的测试目标以确定打印机响应。 通过将每组潜在校准功能的测量打印机响应与目标打印机响应进行比较,确定每个测试目标的误差标准。 然后选择具有最小误差准则值的校准函数。

    CUTTER POSITION CONTROL IN A WEB FED IMAGING SYSTEM
    2.
    发明申请
    CUTTER POSITION CONTROL IN A WEB FED IMAGING SYSTEM 失效
    网络成像系统中的切割位置控制

    公开(公告)号:US20050123335A1

    公开(公告)日:2005-06-09

    申请号:US10731910

    申请日:2003-12-08

    摘要: A method for locating a cutter in a web fed photo imaging system including the steps of measuring an actual fiducial distance between consecutive fiducials, comparing a measured actual fiducial distance between consecutive fiducials to an imaging engine feed distance, calculating a feed distance scaling factor equal to a difference between an average actual fiducial distance and the imaging engine feed distance divided by a total number of discrete incremental moves between fiducials and adjusting the imaging engine feed distance in an amount equal to the scaling factor.

    摘要翻译: 一种用于在卷筒馈送的照相成像系统中定位切割器的方法,包括以下步骤:测量连续基准之间的实际基准距离,将测量的连续基准之间的实际基准距离与成像引擎馈送距离进行比较,计算馈送距离缩放因子等于 平均实际基准距离和成像引擎馈送距离之间的差除以基准之间的离散增量移动的总数,并且以等于缩放因子的量调整成像引擎馈送距离。

    Printhead error compensation
    3.
    发明授权
    Printhead error compensation 失效
    打印头错误补偿

    公开(公告)号:US07708362B2

    公开(公告)日:2010-05-04

    申请号:US10828736

    申请日:2004-04-21

    CPC分类号: B41J29/393

    摘要: A method for calibrating one or more printheads includes printing a reference image using a first portion of image forming points of a first printhead, printing a diagnostic image using a second portion of image forming points of either the first printhead or a second printhead, detecting an optical density of the combined reference image and the diagnostic image and determining a compensation value based upon the optical density.

    摘要翻译: 用于校准一个或多个打印头的方法包括使用第一打印头的图像形成点的第一部分打印参考图像,使用第一打印头或第二打印头的图像形成点的第二部分打印诊断图像,检测 组合参考图像和诊断图像的光密度,并且基于光密度确定补偿值。

    COMPENSATION FOR THERMAL DISTORTION IN A PRINTING SYSTEM
    5.
    发明申请
    COMPENSATION FOR THERMAL DISTORTION IN A PRINTING SYSTEM 审中-公开
    印刷系统热变形补偿

    公开(公告)号:US20100214338A1

    公开(公告)日:2010-08-26

    申请号:US12393345

    申请日:2009-02-26

    IPC分类号: B41J29/38

    CPC分类号: B41J29/393 B41J29/02

    摘要: A method of compensating for thermally induced misalignments in a printing system includes measuring two or more temperatures of a structure within the printing system, mathematically differencing the two or more temperatures to produce a differenced value, inputting the differenced value into a correlation equation, the correlation equation predicting a misalignment of a target printing system component, and compensating for the predicted misalignment of the target printing system component.

    摘要翻译: 补偿印刷系统中热诱导的不对准的方法包括测量印刷系统内的结构的两个或多个温度,在数学上区别两个或多个温度以产生差分值,将差分值输入相关方程,相关性 预测目标打印系统组件的未对准的方程,以及补偿目标打印系统组件的预测的未对准。

    System and method to hide die-to-die boundary banding defects in a drum printer
    6.
    发明申请
    System and method to hide die-to-die boundary banding defects in a drum printer 有权
    用于隐藏滚筒打印机中的模 - 边界条带缺陷的系统和方法

    公开(公告)号:US20060164492A1

    公开(公告)日:2006-07-27

    申请号:US11044123

    申请日:2005-01-27

    IPC分类号: B41J2/01

    摘要: Exemplary embodiments of the invention include systems and methods of reducing visible print defects in drum printers having multi-die printheads oriented substantially perpendicular to the print media path. The exemplary embodiments include printing very small amounts of additional ink via empirically determined printing masks in addition to the normal image content, such that the print defects become less visible. Further exemplary embodiments include printing the additional ink during times typically utilized for print drying.

    摘要翻译: 本发明的示例性实施例包括减少鼓打印机中可见的打印缺陷的系统和方法,其具有基本上垂直于打印介质路径定向的多模头打印头。 示例性实施例包括除了正常图像内容之外通过经验确定的打印掩模打印非常少量的附加墨水,使得打印缺陷变得不太可见。 另外的示例性实施例包括在通常用于打印干燥的时间期间打印附加墨水。

    Printhead error compensation
    7.
    发明申请
    Printhead error compensation 失效
    打印头错误补偿

    公开(公告)号:US20050237351A1

    公开(公告)日:2005-10-27

    申请号:US10828736

    申请日:2004-04-21

    IPC分类号: B41J29/38 B41J29/393

    CPC分类号: B41J29/393

    摘要: A method for calibrating one or more printheads includes printing a reference image using a first portion of image forming points of a first printhead, printing a diagnostic image using a second portion of image forming points of either the first printhead or a second printhead, detecting an optical density of the combined reference image and the diagnostic image and determining a compensation value based upon the optical density.

    摘要翻译: 用于校准一个或多个打印头的方法包括使用第一打印头的图像形成点的第一部分打印参考图像,使用第一打印头或第二打印头的图像形成点的第二部分打印诊断图像,检测 组合参考图像和诊断图像的光密度,并且基于光密度确定补偿值。

    DETERMINING A POSITION OF A PRINT CARRIAGE
    9.
    发明申请
    DETERMINING A POSITION OF A PRINT CARRIAGE 审中-公开
    确定打印机的位置

    公开(公告)号:US20090026265A1

    公开(公告)日:2009-01-29

    申请号:US11782765

    申请日:2007-07-25

    IPC分类号: G06K7/00

    摘要: A system is provided that includes an encoder strip having encoder markings and at least a first index marking along a length of the encoder strip, an encoder configured to generate a first signal that indicates detection of the encoder markings in response to being moved along the length of the encoder strip, an index sensor configured to generate a second signal that indicates detection of the first index marking in response to being moved along the length of the encoder strip in unison with the encoder, and processing circuitry configured to determine a first encoder index value that corresponds to a center of the first index marking using the first and the second signals.

    摘要翻译: 提供了一种系统,其包括具有编码器标记和沿着编码器条的长度的至少第一索引标记的编码器条,编码器,被配置为生成指示响应于沿长度移动的编码器标记的检测的第一信号 编码器条的索引传感器,其被配置为产生指示响应于沿着编码器条的长度与编码器一致移动的第一索引标记的检测的第二信号,以及被配置为确定第一编码器索引的处理电路 该值对应于使用第一和第二信号的第一索引标记的中心。

    System and method to hide die-to-die boundary banding defects in a drum printer
    10.
    发明授权
    System and method to hide die-to-die boundary banding defects in a drum printer 有权
    用于隐藏滚筒打印机中的模 - 边界条带缺陷的系统和方法

    公开(公告)号:US07434911B2

    公开(公告)日:2008-10-14

    申请号:US11044123

    申请日:2005-01-27

    IPC分类号: B41J2/155

    摘要: Exemplary embodiments of the invention include systems and methods of reducing visible print defects in drum printers having multi-die printheads oriented substantially perpendicular to the print media path. The exemplary embodiments include printing very small amounts of additional ink via empirically determined printing masks in addition to the normal image content, such that the print defects become less visible. Further exemplary embodiments include printing the additional ink during times typically utilized for print drying.

    摘要翻译: 本发明的示例性实施例包括减少鼓打印机中可见的打印缺陷的系统和方法,其具有基本上垂直于打印介质路径定向的多模头打印头。 示例性实施例包括除了正常图像内容之外经由经验确定的打印掩模打印非常少量的附加墨水,使得打印缺陷变得不太可见。 另外的示例性实施例包括在通常用于打印干燥的时间期间打印附加墨水。