Method and system to compensate for process direction misalignment of printheads in a continuous web inkjet printer
    2.
    发明授权
    Method and system to compensate for process direction misalignment of printheads in a continuous web inkjet printer 有权
    用于补偿连续卷筒喷墨打印机中打印头的工艺方向不对准的方法和系统

    公开(公告)号:US08313163B2

    公开(公告)日:2012-11-20

    申请号:US12773398

    申请日:2010-05-04

    IPC分类号: B41J29/38

    摘要: A method of operating a printer enables printheads mounted on print bars to be operated to compensate for misalignment of printheads in the process direction. The method includes identifying a position in the process direction for each printhead in a plurality of printheads, selecting one of the identified printhead positions as a reference printhead position, identifying a printhead timing parameter for each printhead mounted to at least one print bar, generating a firing signal for the printheads mounted to the at least one print bar, and adjusting delivery of the firing signal by the identified printhead timing parameter for each corresponding printhead mounted to the at least one print bar to coordinate actuation of inkjet ejectors in the printheads mounted to the at least one print bar and compensate for misalignment of the printheads in the process direction.

    摘要翻译: 一种操作打印机的方法使打印头上安装的打印头能够被操作,以补偿打印头在过程方向上的不对准。 该方法包括识别多个打印头中的每个打印头的处理方向上的位置,选择所识别的打印头位置之一作为参考打印头位置,识别安装到至少一个打印条上的每个打印头的打印头定时参数,生成 用于针对安装到所述至少一个打印条的打印头的点火信号,以及通过所识别的打印头定时参数来调整所述点火信号的输送,所述打印头定时参数适用于安装在所述至少一个打印条上的每个对应的打印头,以协调安装到 所述至少一个打印条并且补偿所述打印头在所述处理方向上的未对准。

    Method and system for continuous feed printing systems
    3.
    发明授权
    Method and system for continuous feed printing systems 有权
    连续进料打印系统的方法和系统

    公开(公告)号:US08223351B2

    公开(公告)日:2012-07-17

    申请号:US12194714

    申请日:2008-08-20

    IPC分类号: G06K15/00

    CPC分类号: B41J11/46 B41J15/16 H04N1/58

    摘要: A method of measuring and correcting the Young's Modulus inline to eliminate its impact on image length variation during print runtime. The method includes intentionally perturbing the nominal operating condition of the web printing system which is controlled by the double reflex printing controller. The perturbation creates misregistration in a control target printed image that is detectable by in-situ sensors, from which Young's Modulus is estimated. Specifically, the web tension before the print zone is set differently from the web tension in the print zone to create misregistration. The error is detected by the inline sensors, and it is used to calculate the actual Young's Modulus. The implementation of the method consists of measuring the Young's Modulus at various frequencies. The correct Young's Modulus in then incorporated into the double reflex printing algorithm.

    摘要翻译: 测量和校正杨氏模量的方法,以消除其在打印运行时对图像长度变化的影响。 该方法包括有意地扰乱由双反射打印控制器控制的卷筒印刷系统的标称操作状态。 扰动在控制目标印刷图像中产生不对准,该图像可以通过原位传感器检测,从而估算出杨氏模量。 具体地说,打印区域之前的卷筒纸张力与打印区域中的卷筒纸张力设置不同以产生不对准。 误差由内联传感器检测,用于计算实际的杨氏模量。 该方法的实现包括测量各种频率的杨氏模量。 然后将正确的杨氏模量纳入双反射打印算法。

    System and method for cross-process control of continuous web printing system
    4.
    发明授权
    System and method for cross-process control of continuous web printing system 有权
    连续卷筒印刷系统的交叉过程控制系统和方法

    公开(公告)号:US07798587B2

    公开(公告)日:2010-09-21

    申请号:US12372294

    申请日:2009-02-17

    IPC分类号: B41J25/308

    CPC分类号: B41J3/543 B41J15/04

    摘要: A system and method for controlling the cross-process position of ink print heads including identifying a first roll error frequency related to a circumference of a first roll, identifying a first roll error phase with respect to a reference location along a process path, identifying a first roll error amplitude of cross-process motion, identifying a second roll error frequency related to a circumference of a second roll, identifying a second roll error phase with respect to the reference location, identifying a second roll error amplitude of cross-process motion, and controlling the cross-process position of a first and second print head based upon the identified first roll error frequency, first roll error phase, first roll error amplitude, second roll error frequency, second roll error phase, and second roll error amplitude, wherein the first print head is axially spaced apart from the second print head along the process direction.

    摘要翻译: 一种用于控制墨水打印头的交叉处理位置的系统和方法,包括识别与第一卷的圆周相关的第一卷错误频率,相对于沿着处理路径的参考位置识别第一卷错误相位, 确定交叉过程运动的第一辊误差幅度,识别与第二辊的圆周相关的第二辊误差频率,识别相对于参考位置的第二辊错误相位,识别交叉过程运动的第二辊误差幅度, 以及基于所识别的第一辊错误频率,第一辊错误相位,第一辊误差振幅,第二辊误差频率,第二辊误差相位和第二辊误差振幅来控制第一和第二打印头的交叉处理位置,其中 第一打印头沿着处理方向与第二打印头沿轴向间隔开。

    SYSTEM AND METHOD FOR CROSS-PROCESS CONTROL OF CONTINUOUS WEB PRINTING SYSTEM
    5.
    发明申请
    SYSTEM AND METHOD FOR CROSS-PROCESS CONTROL OF CONTINUOUS WEB PRINTING SYSTEM 有权
    连续网络打印系统的跨过程控制系统与方法

    公开(公告)号:US20100209160A1

    公开(公告)日:2010-08-19

    申请号:US12372294

    申请日:2009-02-17

    IPC分类号: G03G15/00

    CPC分类号: B41J3/543 B41J15/04

    摘要: A system and method for controlling the cross-process position of ink print heads including identifying a first roll error frequency related to a circumference of a first roll, identifying a first roll error phase with respect to a reference location along a process path, identifying a first roll error amplitude of cross-process motion, identifying a second roll error frequency related to a circumference of a second roll, identifying a second roll error phase with respect to the reference location, identifying a second roll error amplitude of cross-process motion, and controlling the cross-process position of a first and second print head based upon the identified first roll error frequency, first roll error phase, first roll error amplitude, second roll error frequency, second roll error phase, and second roll error amplitude, wherein the first print head is axially spaced apart from the second print head along the process direction.

    摘要翻译: 一种用于控制墨水打印头的交叉处理位置的系统和方法,包括识别与第一卷的圆周相关的第一卷错误频率,相对于沿着处理路径的参考位置识别第一卷错误相位, 确定交叉过程运动的第一辊误差幅度,识别与第二辊的圆周相关的第二辊误差频率,识别相对于参考位置的第二辊错误相位,识别交叉过程运动的第二辊误差幅度, 以及基于所识别的第一辊错误频率,第一辊错误相位,第一辊误差振幅,第二辊误差频率,第二辊误差相位和第二辊误差振幅来控制第一和第二打印头的交叉处理位置,其中 第一打印头沿着处理方向与第二打印头沿轴向间隔开。

    Printhead Registration Correction System and Method for Use with Direct Marking Continuous Web Printers
    6.
    发明申请
    Printhead Registration Correction System and Method for Use with Direct Marking Continuous Web Printers 有权
    打印头注册校正系统和直接连续网页打印机使用的方法

    公开(公告)号:US20100123752A1

    公开(公告)日:2010-05-20

    申请号:US12274566

    申请日:2008-11-20

    IPC分类号: B41J29/393

    CPC分类号: B41J15/165 B41J11/42

    摘要: A registration system for use with an imaging device includes sensors for detecting a web speed and a web tension of a moving web and a control system configured to generate a first timing offset for at least one marking station based on the detected web speed and web tension. An image sensor is configured to generate a signal indicative of a position of a marking material applied to the moving web by at least one of the marking stations. The control system is configured to generate a second timing offset for the at least one marking station based on the position of the marking material indicated by the third signal, and to adjust an actuation time for the at least one marking station using the first timing offset and the second timing offset.

    摘要翻译: 一种与成像装置一起使用的配准系统包括用于检测纸幅速度和纸幅张力的传感器,以及控制系统,其被配置为基于检测到的纸幅速度和卷筒纸张力为至少一个标记工位生成第一定时偏移 。 图像传感器被配置为产生指示由至少一个标记站施加到移动幅材的标记材料的位置的信号。 所述控制系统被配置为基于由所述第三信号指示的所述标记材料的位置为所述至少一个标记站生成第二定时偏移,并且使用所述第一定时偏移来调整所述至少一个标记站的致动时间 和第二定时偏移。

    Charger with a probe and controller
    7.
    发明授权
    Charger with a probe and controller 有权
    带探头和控制器的充电器

    公开(公告)号:US07715743B2

    公开(公告)日:2010-05-11

    申请号:US11707369

    申请日:2007-02-16

    CPC分类号: G03G15/0258 G03G2215/028

    摘要: This is a charging assembly that is useful in marking processes with an electrostatically charged surface. The assembly includes, besides the charger, a controller and an electric field probe. Charge and current flows can be detected by the probe and corrected immediately after detection of flaws by the probe and conveyed to the controller. If flaws in the charger are determined by the probe, corrections are made to the output by a controller; this is done before a final copy or print is made. The term flaws as used means any non-uniform appearing region in the printed image or any otherwise unacceptable defect. The probe is enabled to detect and indicate flaws and the controller which is in communication with the probe takes corrective action on the flaws. The probe used is a novel probe having two sensing elements surrounded by one or more reference electrodes.

    摘要翻译: 这是一种充电组件,可用于带静电充电表面的标记工艺。 除了充电器之外,组件还包括控制器和电场探头。 可以通过探头检测充电和电流,并在通过探头检测到缺陷后立即进行校正,并将其传送到控制器。 如果充电器中的缺陷由探头确定,则由控制器进行校正; 这是在完成最终复印或打印之前完成的。 所使用的术语缺陷是指印刷图像中的任何不均匀的出现区域或任何其他不可接受的缺陷。 探头能够检测并指示缺陷,与探头通信的控制器对缺陷进行纠正。 使用的探针是具有由一个或多个参考电极包围的两个感测元件的新型探针。

    CALIBRATION METHOD FOR COMPENSATING FOR NON-UNIFORMITY ERRORS IN SENSORS MEASURING SPECULAR REFLECTION
    8.
    发明申请
    CALIBRATION METHOD FOR COMPENSATING FOR NON-UNIFORMITY ERRORS IN SENSORS MEASURING SPECULAR REFLECTION 有权
    用于校正传感器中非均匀性误差的校准方法,用于测量光谱反射

    公开(公告)号:US20090161111A1

    公开(公告)日:2009-06-25

    申请号:US11962817

    申请日:2007-12-21

    IPC分类号: G01N21/47

    摘要: This invention relates to a method for the calibration of linear array photo sensors operating in a specular reflection mode. Errors may be introduced when a highly diffused image is measured by the linear array photosensor that was calibrated in a specular mode. These errors result in artifacts such as streaks in the captured image. The method measures non-uniformity errors using a highly diffuse white reflective surface, and then applies an appropriate scaled pixel-wise correction factor to the image when the sensor is used in the specular mode.

    摘要翻译: 本发明涉及一种用于校正以镜面反射模式操作的线性阵列光电传感器的方法。 当通过以镜面模式校准的线性阵列光电传感器测量高度漫射的图像时,可能会引入错误。 这些错误会导致伪像,例如捕获图像中的条纹。 该方法使用高度漫反射的白色反射表面测量不均匀性误差,然后在镜面模式下使用传感器时,对图像应用适当的缩放像素修正因子。

    Charger with a probe and controller
    9.
    发明申请
    Charger with a probe and controller 有权
    带探头和控制器的充电器

    公开(公告)号:US20080199195A1

    公开(公告)日:2008-08-21

    申请号:US11707369

    申请日:2007-02-16

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0258 G03G2215/028

    摘要: This is a charging assembly that is useful in marking processes with an electrostatically charged surface. The assembly includes, besides the charger, a controller and an electric field probe. Charge and current flows can be detected by the probe and corrected immediately after detection of flaws by the probe and conveyed to the controller. If flaws in the charger are determined by the probe, corrections are made to the output by a controller; this is done before a final copy or print is made. The term flaws as used means any non-uniform appearing region in the printed image or any void region within the printed image including any otherwise unacceptable defect such as a jagged line that is visible to an end user. The probe is enabled to detect and indicate flaws and the controller which is in communication with the probe takes corrective action on the flaws. The probe used is a novel probe having two sensing elements surrounded by one or more reference electrodes.

    摘要翻译: 这是一种充电组件,可用于带静电充电表面的标记工艺。 除了充电器之外,组件还包括控制器和电场探头。 可以通过探头检测充电和电流,并在通过探头检测到缺陷后立即进行校正,并将其传送到控制器。 如果充电器中的缺陷由探头确定,则由控制器进行校正; 这是在完成最终复印或打印之前完成的。 所使用的术语缺陷是指印刷图像中的任何不均匀的出现区域或印刷图像内的任何空隙区域,包括任何其他不可接受的缺陷,例如最终用户可见的锯齿状线。 探头能够检测并指示缺陷,与探头通信的控制器对缺陷进行纠正。 使用的探针是具有由一个或多个参考电极包围的两个感测元件的新型探针。

    System for measuring and controlling total color of a mixture of colorants such as toner
    10.
    发明申请
    System for measuring and controlling total color of a mixture of colorants such as toner 失效
    用于测量和控制诸如调色剂的着色剂混合物的总颜色的系统

    公开(公告)号:US20080112730A1

    公开(公告)日:2008-05-15

    申请号:US11598512

    申请日:2006-11-13

    IPC分类号: G03G15/01

    CPC分类号: G03G15/0121 G03G15/0855

    摘要: A development unit used in xerographic printing retains a mixture of at least a first colorant and a second colorant. An illuminator directs toward at least a portion of the mixture a first light of one color, a second light of a second color, and a third light substantially outside of a visible range. A photosensor records a first reflectance signal based on light reflected from the mixture substantially in a visible range, and a second reflectance signal based on light reflected from the mixture substantially outside a visible range. The signals can be used to maintain the mixture at the desired total color and other properties.

    摘要翻译: 用于静电印刷的显影单元保留至少第一着色剂和第二着色剂的混合物。 照明器朝向混合物的至少一部分指向一种颜色的第一光,第二颜色的第二光和基本上在可见光范围外的第三光。 光传感器基于基本上在可见光范围内从混合物反射的光记录第一反射信号,并且基于基本上在可见光范围外的混合物反射的光来记录第二反射信号。 这些信号可用于将混合物保持在期望的总颜色和其它性质。