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31.发明授权Systems and methods for detecting intermittent, weak and missing jets with an inline linear array sensor 有权使用直列线性阵列传感器检测间歇，弱和缺失喷气机的系统和方法公开(公告)号：US07427118B2
公开(公告)日：2008-09-23
申请号：US10999014
申请日：2004-11-30
IPC分类号： B41J29/38
CPC分类号： B41J2/2139
摘要： Systems and methods are provided for detecting intermittent, weak or missing jets of a printer. The detection is implemented using a test pattern. Detected failed jets may be confirmed using a verification target. A printhead containing nozzles corresponding to detected failed jets may be wiped or purged.
摘要翻译： 提供了系统和方法来检测打印机的间歇，弱或缺失的喷气。 使用测试模式实现检测。 检测到的失效喷气机可能会使用验证目标进行确认。 可以擦拭或清除包含与检测到的故障喷嘴相对应的喷嘴的打印头。
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公开(公告)号：US07375740B2
公开(公告)日：2008-05-20
申请号：US11188300
申请日：2005-07-25
申请人： Howard A. Mizes
发明人： Howard A. Mizes
CPC分类号： B41J29/393 , H04N1/4015
摘要： In a printing system, a method is used for adjusting currents to LEDs in an LED printbar to achieve uniformity of the print. The line test pattern and halftone strips test pattern are printed. The test patterns are scanned. An LED line metric of each LED test pattern line and reflectance uniformity of each halftone test strip are measured. A line uniformity difference profile and a set of halftone strips uniformity difference profiles are concurrently calculated. A current value supplied to each LED associated with the test patterns is adjusted to simultaneously optimize the uniformity in the lines test pattern and the halftone strips test pattern.
摘要翻译： 在打印系统中，使用一种方法来调节LED打印条中的LED的电流，以实现打印的均匀性。 打印线条测试图案和半色调条纹测试图案。 扫描测试图案。 每个LED测试图案线的LED线路度量和每个半色调测试条的反射均匀性被测量。 同时计算线均匀性差异分布和一组半色调条均匀性差异分布。 调整提供给与测试图案相关联的每个LED的电流值，以同时优化线测试图案和半色调条测试图案的均匀性。
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公开(公告)号：US07283143B2
公开(公告)日：2007-10-16
申请号：US10852243
申请日：2004-05-25
申请人： Howard A. Mizes , Beilei Xu , Chu-heng Liu , Robert P. Loce , Michael D. Thompson , Eric S. Hamby , R. Enrique Viturro
发明人： Howard A. Mizes , Beilei Xu , Chu-heng Liu , Robert P. Loce , Michael D. Thompson , Eric S. Hamby , R. Enrique Viturro
IPC分类号： G03G21/00
CPC分类号： H04N1/00002 , H04N1/00015 , H04N1/00031 , H04N1/00045 , H04N1/00053 , H04N1/00063 , H04N1/00068 , H04N1/00087
摘要： A method of measuring and controlling high frequency banding, the method includes creating a test pattern, sensing the test pattern with optical sensors, determining a beat frequency based on the sensed test pattern, and determining the frequency, phase and amplitude of high frequency banding based on the beat frequency. An exemplary embodiment of a feedback control method for controlling high frequency banding includes creating a test pattern, sensing the test pattern with optical sensors, measuring high frequency banding and adjusting the imaging parameters based on the measured high frequency banding in order to decrease the extent of high frequency banding. Moreover, an exemplary embodiment of a system for measuring high frequency banding includes an image marking device having a receiving member, optical sensors arranged on the receiving member, and a controller that is functionally coupled to the optical sensors and to the marking device.
摘要翻译： 一种测量和控制高频带的方法，该方法包括创建测试图案，用光学传感器感测测试图案，基于感测到的测试图案确定拍频，以及确定基于高频带的频率，相位和幅度 在拍频上 用于控制高频带的反馈控制方法的示例性实施例包括创建测试图案，用光学传感器感测测试图案，测量高频带并基于所测量的高频带来调整成像参数，以便降低 高频带。 此外，用于测量高频带的系统的示例性实施例包括具有接收构件的图像标记装置，布置在接收构件上的光学传感器以及功能上耦合到光学传感器和标记装置的控制器。
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公开(公告)号：US06819352B2
公开(公告)日：2004-11-16
申请号：US10342543
申请日：2003-01-15
IPC分类号： B41J247
CPC分类号： G06K15/1247 , G06K15/027 , H04N1/4015
摘要： A method of adjusting print uniformity in a xerographic device is provided. The method includes: a) printing a test pattern, b) transferring the printed test pattern to a scanner, c) scanning the printed test pattern and detecting line information, d) communicating the detected information to a computer, e) determining measurements from the detected line information, f) calculating the difference between the measurements and target values, and g) depending on the difference, adjusting a current supplied to an individual LED of an LED printbar associated with the measurement to reduce the difference. In one aspect, a test pattern line is associated with an individual LED. In another aspect, test pattern lines are associated with two adjacent LEDs and three adjacent LEDs. In yet another aspect, the test pattern includes dotted lines. In still another aspect, the invention includes a xerographic device with an LED printbar, a computer, and a scanner device.
摘要翻译： 提供了一种在静电印刷设备中调整印刷均匀性的方法。 该方法包括：a）打印测试图案，b）将打印的测试图案传送到扫描器，c）扫描打印的测试图案和检测线路信息，d）将检测到的信息传送到计算机，e） 检测线信息，f）计算测量值和目标值之间的差值，以及g）根据该差异，调节与测量相关联的LED打印机的单独LED的电流，以减小差异。 在一个方面，测试图案线与单独的LED相关联。 在另一方面，测试图案线与两个相邻的LED和三个相邻的LED相关联。 在另一方面，测试图案包括虚线。 在另一方面，本发明包括具有LED打印条，计算机和扫描仪装置的静电复印装置。
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35.发明授权Methods and systems for achieving print uniformity using reduced memory or computational requirements 有权使用减少记忆或计算要求实现打印均匀性的方法和系统公开(公告)号：US08705120B2
公开(公告)日：2014-04-22
申请号：US12786694
申请日：2010-05-25
申请人： Yequing (Juliet) Zhang , Daniel E. Viassolo , Susan J. Zoltner , Howard A. Mizes , Robert P. Loce
发明人： Yequing (Juliet) Zhang , Daniel E. Viassolo , Susan J. Zoltner , Howard A. Mizes , Robert P. Loce
CPC分类号： H04N1/407 , H04N1/4097
摘要： Engine response curves (RCs) can be used for streak compensation for printed documents. A feedback control paradigm can be included to effect RC compensation. Singular Value Decomposition (SVD) can be used to represent each RC in the collection of spatial RC data as a linear combination of basis vectors. RCs are approximated by selecting the first few basis vectors, the approximation aiding in noise rejection and reducing computation in the controller by reducing dimensionality of the RC data from gray levels to the number of SVD bases selected. An optimal subset of RCs is selectable from the set of approximated RCs by clustering the SVD weights, the clustered SVD weights producing TRCs that span all engine response RCs generated by a printer. Compensation RCs are constructible using reduced number of bases and clustered SVD weights.
摘要翻译： 发动机响应曲线（RC）可用于印刷文件的条纹补偿。 可以包括反馈控制范例来实现RC补偿。 奇异值分解（SVD）可以用于将空间RC数据的集合中的每个RC表示为基向量的线性组合。 通过选择前几个基本矢量近似，近似有助于噪声抑制，并通过将RC数据从灰度级降低到所选择的SVD基数来减少控制器中的计算。 通过对SVD权重进行聚类，可从集合的近似RC中选择RC的最佳子集，产生跨越由打印机产生的所有发动机响应RC的TRC的聚类SVD权重。 补偿RC可以使用减少的基数和聚类SVD权重来构建。
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36.发明授权Identifying edges of web media using textural contrast between web media and backer roll 有权使用网络媒体和支持者卷之间的纹理对比来识别网络媒体的边缘公开(公告)号：US08666188B2
公开(公告)日：2014-03-04
申请号：US13070132
申请日：2011-03-23
申请人： Stuart Schweid , Howard A. Mizes
发明人： Stuart Schweid , Howard A. Mizes
CPC分类号： B41J11/0095
摘要： A computer-implemented method for identifying the edges of web media transported on a movable transport surface includes sensing, using a linear array sensor positioned along a process path of a web, the web media and the movable transport surface to obtain image data representative of variations in optical textural properties of the web media and variations in optical textural properties of the movable transport surface, wherein the variations in the optical textural properties of the movable transport surface are different from the variations in the optical textural properties of the web media; and processing the image data to determine differences between the variations in the optical textural properties of the web media and the variations in the optical textural properties of the movable transport surface to identify an edge of the web media.
摘要翻译： 用于识别在可移动传输表面上传送的网状介质的边缘的计算机实现的方法包括使用沿着卷筒纸的处理路径定位的线性阵列传感器来感测网状介质和可移动传送表面，以获得表示变化的图像数据 纤维网介质的光学织构特性和可移动传送表面的光学纹理性质的变化，其中可移动传送表面的光学纹理性质的变化不同于网状介质的光学织构特性的变化; 并且处理图像数据以确定幅材介质的光学纹理特性的变化与可移动传送表面的光学纹理性质的变化之间的差异，以识别网状介质的边缘。
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37.发明授权Method and system for aligning printheads that eject clear ink in an inkjet printer 有权用于对准在喷墨打印机中喷射透明墨水的打印头的方法和系统公开(公告)号：US08506038B2
公开(公告)日：2013-08-13
申请号：US13184638
申请日：2011-07-18
申请人： Howard A. Mizes , David A. Mantell , Joseph C. Sheflin , Michael C. Mongeon , Michael J. Levy , Charles D. Rizzolo , Jeffrey J. Folkins
发明人： Howard A. Mizes , David A. Mantell , Joseph C. Sheflin , Michael C. Mongeon , Michael J. Levy , Charles D. Rizzolo , Jeffrey J. Folkins
IPC分类号： B41J2/05
CPC分类号： B41J2/2114 , B41J2/2135
摘要： A method enables an operator to detect misalignment of printheads that eject clear ink in an inkjet printer. The method prints a first test pattern with a first color of ink and then prints a second test pattern of clear ink on top of the first test pattern. The ink of the first and the second test patterns is then spread to enable the clear ink to be dispersed in interstitial spaces in the ink of the first color. An operator is then able to detect the spatial relationship of predetermined marks in the second test pattern to predetermined marks in the first test pattern. The predetermined marks of the first and the second test patterns are arranged to enable an operator to detect a misalignment distance and the inkjet printer uses the misalignment distance entered by the operator to adjust the alignment of the printheads that eject clear ink.
摘要翻译： 一种方法使得操作者能够检测在喷墨打印机中喷射透明墨水的打印头的未对准。 该方法打印具有第一颜色墨水的第一测试图案，然后在第一测试图案的顶部上打印清除墨水的第二测试图案。 然后扩散第一和第二测试图案的油墨以使透明油墨分散在第一颜色的油墨中的间隙空间中。 然后，操作者能够检测第二测试图案中的预定标记与第一测试图案中的预定标记的空间关系。 第一测试图案和第二测试图案的预定标记被布置成使得操作者能够检测到未对准距离，并且喷墨打印机使用由操作者输入的未对准距离来调节喷射透明墨水的打印头的对准。
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公开(公告)号：US08485634B2
公开(公告)日：2013-07-16
申请号：US13351007
申请日：2012-01-16
IPC分类号： B41J29/393
CPC分类号： B41J2/2135
摘要： A method of detecting print head roll begins with the formation of a test pattern on an image receiving surface. The test pattern includes a plurality of marks arrayed across the image receiving surface in a cross-process direction with each mark in the plurality being formed by a different nozzle of a print head. The cross-process direction positions of each mark in the plurality of marks are then detected; and the detected cross-process direction positions are correlated to a print head roll value for the print head.
摘要翻译： 一种检测打印头卷的方法开始于在图像接收表面上形成测试图案。 测试图案包括沿着图像接收表面跨过程方向排列的多个标记，多个中的每个标记由打印头的不同喷嘴形成。 然后检测多个标记中的每个标记的交叉处理方向位置; 并且检测到的交叉处理方向位置与打印头的打印头滚动值相关。
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公开(公告)号：US08319202B2
公开(公告)日：2012-11-27
申请号：US12755117
申请日：2010-04-06
IPC分类号： G03G15/00 , B41J29/393
CPC分类号： B41J2/515 , B41J11/008 , B41J15/04
摘要： A computer-implemented method for performing color registration on template media having template markings thereon. The method comprising sensing the template media using a linear array sensor to obtain first image data; printing a test pattern on the template media; sensing the template media along with the test pattern printed thereon to obtain second image data; transforming the first image data and the second image data into an absorbance space to obtain a first absorbance and a second absorbance, respectively; calculating a difference between the first and the second absorbances to obtain an output absorbance; transforming the output absorbance into a reflectivity space to obtain an output data; determining a process direction misregistration and a cross-process direction misregistration from the output data; and adjusting a cross-process position and a process position of print heads based on the process and cross-process direction misregistration to provide accurate color registration on subsequent template media.
摘要翻译： 一种用于在其上具有模板标记的模板介质上执行颜色注册的计算机实现的方法。 该方法包括使用线性阵列传感器来感测模板媒体以获得第一图像数据; 在模板媒体上打印测试图案; 感测模板介质以及打印在其上的测试图案以获得第二图像数据; 将第一图像数据和第二图像数据变换为吸光度空间，以分别获得第一吸光度和第二吸光度; 计算第一和第二吸光度之间的差以获得输出吸光度; 将输出吸光度转换为反射率空间以获得输出数据; 从输出数据确定过程方向重合失调和交叉过程方向重合失调; 并基于过程和交叉过程方向重合失调来调整打印头的交叉处理位置和处理位置，以便在随后的模板介质上提供准确的颜色配准。
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公开(公告)号：US08100499B2
公开(公告)日：2012-01-24
申请号：US12413817
申请日：2009-03-30
IPC分类号： B41J29/393
CPC分类号： B41J2/2135
摘要： A method of detecting print head roll begins with the formation of a test pattern on an image receiving surface. The test pattern includes a plurality of marks arrayed across the image receiving surface in a cross-process direction with each mark in the plurality being formed by a different nozzle of a print head. The cross-process direction positions of each mark in the plurality of marks are then detected; and the detected cross-process direction positions are correlated to a print head roll value for the print head.
摘要翻译： 一种检测打印头卷的方法开始于在图像接收表面上形成测试图案。 测试图案包括沿着图像接收表面跨过程方向排列的多个标记，多个中的每个标记由打印头的不同喷嘴形成。 然后检测多个标记中的每个标记的交叉处理方向位置; 并且检测到的交叉处理方向位置与打印头的打印头滚动值相关。
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