公开(公告)号：US07857414B2

公开(公告)日：2010-12-28

申请号：US12274566

申请日：2008-11-20

申请人： Yongsoon Eun ,  R. Enrique Viturro ,  Howard A. Mizes ,  Jeffrey J. Folkins

发明人： Yongsoon Eun ,  R. Enrique Viturro ,  Howard A. Mizes ,  Jeffrey J. Folkins

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。

公开(公告)号：US07837290B2

公开(公告)日：2010-11-23

申请号：US12175879

申请日：2008-07-18

申请人： Howard Mizes ,  R. Enrique Viturro

发明人： Howard Mizes ,  R. Enrique Viturro

IPC分类号： B41J29/393

CPC分类号： B41J3/543 ,  B41J2/2146 ,  B41J29/38 ,  B41J29/393 ,  B41J2002/14362 ,  B41J2202/20 ,  B41J2202/21 ,  G03G2215/0158

摘要： A method of aligning a printhead is described herein. The method includes accelerating a media along a process path, controlling a first printhead to form a first mark upon the accelerating media, detecting the first mark on the accelerating media, comparing a first mark detection data with first printhead desired alignment data, determining a first correction based upon the comparison of the first mark detection data, and modifying an alignment of the first printhead based upon the determined first correction.

摘要翻译： 本文描述了对准打印头的方法。 该方法包括沿着处理路径加速介质，控制第一打印头在加速介质上形成第一标记，检测加速介质上的第一标记，将第一标记检测数据与第一打印头期望对准数据进行比较，确定第一标记 基于第一标记检测数据的比较以及基于所确定的第一校正来修改第一打印头的对准的校正。

公开(公告)号：US07715008B2

公开(公告)日：2010-05-11

申请号：US12053075

申请日：2008-03-21

申请人： Eric Scott Hamby ,  Frank John Bonsignore ,  Phillip Stephen Crispino ,  R. Enrique Viturro

发明人： Eric Scott Hamby ,  Frank John Bonsignore ,  Phillip Stephen Crispino ,  R. Enrique Viturro

IPC分类号： G01N21/25

CPC分类号： G01N21/6456 ,  G01N21/643 ,  G01N2021/646

摘要： A system and method for optically monitoring contamination of machinery includes an optical illumination source, a photodetector and an analysis module. The system and method can monitor a fuser roll, a fuser belt, or other printer module component. The optical illumination source can emit at least one illuminating frequency. The at least one illuminating frequency is configured to cause a contaminant marker to fluoresce at least one fluorescing frequency and is also configured to at least partially illuminate the machine component. The machine component contains the contaminant marker when at least partially contaminated. The photodetector is responsive to the at least one fluorescing frequency and detects the at least one fluorescing frequency emitted from the contaminated machine component. The analysis module is in operative communication with the photodetector and is figured to receive a signal therefrom. The analysis module is configured to estimate contamination of the machine component as a function of the signal from the photodetector.

摘要翻译： 用于光学监测机械污染的系统和方法包括光学照明源，光电检测器和分析模块。 该系统和方法可以监视定影辊，定影带或其他打印机模块组件。 光照射源可以发射至少一个照明频率。 所述至少一个照明频率被配置为使污染物标记物荧光至少一个荧光频率，并且还被配置为至少部分地照亮所述机器部件。 至少部分被污染时，机器部件含有污染物标记。 光电检测器响应于至少一个荧光频率并且检测从污染的机器部件发射的至少一个荧光频率。 分析模块与光电检测器操作地通信，并且被计算为从其接收信号。 分析模块被配置为根据来自光电检测器的信号来估计机器部件的污染。

公开(公告)号：US07697142B2

公开(公告)日：2010-04-13

申请号：US11962817

申请日：2007-12-21

申请人： Kenneth R. Ossman ,  R. Enrique Viturro

发明人： Kenneth R. Ossman ,  R. Enrique Viturro

IPC分类号： G01N21/00 ,  G01B9/08

CPC分类号： G03G15/5041 ,  G01N21/276 ,  G01N21/55 ,  G03G15/5062 ,  G03G2215/00042 ,  G03G2215/00059

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。

公开(公告)号：US20090273813A1

公开(公告)日：2009-11-05

申请号：US12112618

申请日：2008-04-30

申请人： R. Enrique Viturro ,  Peter Paul

发明人： R. Enrique Viturro ,  Peter Paul

IPC分类号： H04N1/409

CPC分类号： H04N1/4015 ,  G03G15/5041 ,  G03G2215/00042 ,  H04N1/12 ,  H04N1/295 ,  H04N1/4076

摘要： Systems and methods are provided for compensating for streak defects in images formed by an image forming device, such as a digital printer. The systems and methods include using both modulation of a raster output scanner (ROS actuation) and spatially varying tone reproduction curve (STRC actuation) in a common control system for improving streak correction. Low spatial frequency large amplitude streak defects are corrected using ROS actuation and high spatial frequency streak defects, as well as any residual low frequency defects, are corrected using STRC actuation.

摘要翻译： 提供了系统和方法来补偿由诸如数字打印机的图像形成装置形成的图像中的条纹缺陷。 该系统和方法包括在公共控制系统中使用光栅输出扫描器（ROS致动）的调制和空间变化色调再现曲线（STRC致动），以改善条纹校正。 使用ROS驱动校正低空间频率大幅度条纹缺陷，并且使用STRC致动校正高空间频率条纹缺陷以及任何残留的低频缺陷。

公开(公告)号：US07483186B2

公开(公告)日：2009-01-27

申请号：US11428489

申请日：2006-07-03

申请人： R. Enrique Viturro ,  Lalit Keshav Mestha ,  Joseph D. Hancock ,  Tonya L. Love

发明人： R. Enrique Viturro ,  Lalit Keshav Mestha ,  Joseph D. Hancock ,  Tonya L. Love

IPC分类号： H04N1/46 ,  H04N1/23 ,  G03F3/08

CPC分类号： H04N1/46

摘要： A printer or other marking engine includes a marking material transfer device, such as a photoreceptor drum or belt, that includes a plurality of pitches. Each pitch receives an individual color of marking material and conveys the marking material to a substrate. The marking engine forms a desired image in a main image area of the substrate using marking material from one or more of the pitches, and produces a target patch pattern for each of the pitches in a margin area located outside the main image area. A measuring device such as a spectrophotometer is used to measure each target patch pattern, and based on the measured values, an individual color calibration is performed for each pitch for use in a subsequent marking operation. The color calibration may include generating or modifying a tone reproduction curve for each pitch based on the measured values. The margin area may be later trimmed off, thereby removing the portion of the substrate on which the target patch pattern is formed.

摘要翻译： 打印机或其他标记引擎包括包括多个间距的标记材料传送装置，例如感光鼓或皮带。 每个音调接收标记材料的单独颜色，并将标记材料传送到基底。 标记引擎使用来自一个或多个间距的标记材料在基板的主图像区域中形成期望的图像，并且在位于主图像区域外部的边缘区域中产生用于每个间距的目标贴片图案。 使用诸如分光光度计的测量装置来测量每个目标贴片图案，并且基于测量值，对于每个间距执行单独的颜色校准以用于随后的标记操作。 颜色校准可以包括基于测量值产生或修改每个音高的色调再现曲线。 可以稍后修剪边缘区域，从而去除其上形成有目标贴片图案的基板的部分。

公开(公告)号：US20080037069A1

公开(公告)日：2008-02-14

申请号：US11501654

申请日：2006-08-09

申请人： Lalit Keshav Mestha ,  R. Enrique Viturro

发明人： Lalit Keshav Mestha ,  R. Enrique Viturro

IPC分类号： G06K15/00

CPC分类号： G06F15/00 ,  H04N1/00002 ,  H04N1/00015 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00058 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/6033 ,  H04N1/6041

摘要： A method and system for color calibration or color output device spectrophotoically measures at test target including a preselected test color value. A multi-dimensional LUT of the device is generated representative of the color information including the at least one preselected color. Producing a second image width device including the at least one preselected color located at a plurality of spatial locations in the second image. A second sensor measures the second image and a plurality of spatial locations having the preselected color for generating reflectance information for the preselected color at the plurality of spatial locations. An error is determined between the measured color of the one preselected color and the reflectance information at the other pixel locations. A multi-dimensional LUT is adjusted to minimize spatial uniformity errors at the other pixel locations, thus calibrating device color output spatially.

摘要翻译： 用于颜色校准或颜色输出装置的分光光度测量方法和系统，包括预选的测试颜色值。 产生装置的多维LUT，代表包括至少一个预选颜色的颜色信息。 生成包括位于第二图像中的多个空间位置处的至少一个预选颜色的第二图像宽度装置。 第二传感器测量第二图像和具有预选颜色的多个空间位置，用于在多个空间位置处产生用于预选颜色的反射信息。 在一个预选颜色的测量颜色和其他像素位置处的反射率信息之间确定误差。 调整多维LUT以使其他像素位置处的空间均匀性误差最小化，从而空间地校准设备颜色输出。

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。

公开(公告)号：US6052195A

公开(公告)日：2000-04-18

申请号：US083114

申请日：1998-05-22

申请人： Lingappa K. Mestha ,  Sohail A. Dianat ,  Michael J. Rice ,  Edward B. Caruthers ,  R. Enrique Viturro

发明人： Lingappa K. Mestha ,  Sohail A. Dianat ,  Michael J. Rice ,  Edward B. Caruthers ,  R. Enrique Viturro

IPC分类号： G01J3/46 ,  G01J3/50

CPC分类号： G01J3/46 ,  G01J3/463

摘要： A method of mixing colorants to achieve a target color includes combining individual colorants, detecting an output color of the combined colorants with a color sensing device and automatically adjusting the output color based on comparison between the detected output color and the target color. An apparatus for mixing colorants according to this method is also disclosed.

摘要翻译： 混合着色剂以实现目标颜色的方法包括组合各个着色剂，检测组合的着色剂的输出颜色与颜色感测装置，并且基于检测到的输出颜色和目标颜色之间的比较来自动调整输出颜色。 还公开了根据该方法混合着色剂的装置。