公开(公告)号：US5166999A

公开(公告)日：1992-11-24

申请号：US782948

申请日：1991-10-25

申请人： James D. Rees ,  Kenneth R. Ossman

发明人： James D. Rees ,  Kenneth R. Ossman

IPC分类号： B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  B41J3/54 ,  G02B3/00 ,  G02B6/42 ,  G06K15/12 ,  H04N1/036 ,  H04N1/04 ,  H04N1/113

CPC分类号： G02B3/005 ,  B41J2/451 ,  G02B3/0087 ,  G02B6/4249 ,  G06K15/1247 ,  H04N1/0402 ,  H04N1/0408 ,  H04N1/0432 ,  H04N1/0455

摘要： The resolution of an LED print bar used in printing applications is modified by optically coupling the print bar, in a preferred embodiment, to a two row, square ended, reduction enlargement gradient index lens array. The lens array is modified to have a radiometric speed suitable for printing applications (f/3 or faster) with a total conjugate long enough to maintain optical quality at full field. In a preferred embodiment, a nominal 480 spi print bar is coupled to a modified 0.80X R/E lens array to provide a resolution in an image plane of 600 spi. Other embodiments are described which utilize a plurality of print bars with a combination of unity magnification gradient index lens array in conjunction with a modified R/E lens array.

摘要翻译： 在优选实施例中，用于打印应用的LED打印条的分辨率通过将打印条光学耦合到两行平方的缩小放大梯度折射率透镜阵列来进行修改。 透镜阵列被修改为具有适合于印刷应用（f / 3或更快）的辐射速度，总共轭足够长以保持全场的光学质量。 在一个优选实施例中，标称480印刷条耦合到经修改的0.80X R / E透镜阵列以提供600 spi的图像平面中的分辨率。 描述了其中结合改进的R / E透镜阵列利用具有单位放大率梯度折射率透镜阵列的组合的多个印刷条的其它实施例。

公开(公告)号：US4967265A

公开(公告)日：1990-10-30

申请号：US332821

申请日：1989-04-04

申请人： James D. Rees ,  Richard F. Lehman ,  Kenneth R. Ossman

发明人： James D. Rees ,  Richard F. Lehman ,  Kenneth R. Ossman

IPC分类号： G03G15/01 ,  H04N1/46 ,  H04N1/48 ,  H04N1/50 ,  H04N1/60

CPC分类号： G03G15/01 ,  H04N1/508 ,  H04N1/60

摘要： A color correction system for a color copier is enabled by means of a low resolution RIS unit attached to a light/lens scan system which creates an electronic raster image simultaneously with formation of a color latent image. The RIS output signals are used to modulate the output of a ROS unit which exposes the color latent image to a modulated color correction pattern. Color developer units are enabled to successively develop each color.

摘要翻译： 用于彩色复印机的颜色校正系统通过附加到光/透镜扫描系统的低分辨率RIS单元来实现，该系统在形成彩色潜像的同时产生电子光栅图像。 RIS输出信号用于调制ROS单元的输出，该ROS单元将彩色潜像曝光到调制色彩校正图案。 彩色显影单元能够连续显色。

公开(公告)号：US08052244B2

公开(公告)日：2011-11-08

申请号：US12394807

申请日：2009-02-27

申请人： David Norman Ruff ,  Cary Eric Sjolander ,  Scott J. Phillips ,  Kenneth R. Ossman ,  Barry Daniel Reeves

发明人： David Norman Ruff ,  Cary Eric Sjolander ,  Scott J. Phillips ,  Kenneth R. Ossman ,  Barry Daniel Reeves

IPC分类号： B41J29/38 ,  B41J29/393

CPC分类号： H01L27/146

摘要： A printing device comprises a print head, imaging member, and a moveable sensor array. The print head is configured to deliver marking material to the imaging member as it moves in a process direction. The linear sensor array comprises a plurality of photo sensors configured to scan the imaging member. The photo detectors of the linear sensor array define a sensor axis that is substantially perpendicular to the process direction. The linear sensor array is configured to move along the sensor axis between a first position where the sensor array scans one portion of the imaging member and a second position where the sensor array scans another portion of the imaging member. If a fault is detected during calibration of the sensor array, the moveable sensor array may be used to determine whether the source of the fault rests with the imaging member or the sensor array.

摘要翻译： 打印装置包括打印头，成像构件和可移动传感器阵列。 打印头构造成当成像构件沿着处理方向移动时将标记材料输送到成像构件。 线性传感器阵列包括配置成扫描成像构件的多个光传感器。 线性传感器阵列的光电检测器限定基本上垂直于过程方向的传感器轴线。 线性传感器阵列被配置为沿着传感器轴线在传感器阵列扫描成像构件的一部分的第一位置和传感器阵列扫描成像构件的另一部分的第二位置之间移动。 如果在校准传感器阵列期间检测到故障，则可移动传感器阵列可用于确定故障源是否由成像构件或传感器阵列支撑。

公开(公告)号：US07980654B2

公开(公告)日：2011-07-19

申请号：US12482030

申请日：2009-06-10

申请人： Michael C. Mongeon ,  Howard Mizes ,  Helen Shin ,  Kenneth R. Ossman

发明人： Michael C. Mongeon ,  Howard Mizes ,  Helen Shin ,  Kenneth R. Ossman

IPC分类号： B41J29/393 ,  H04N1/46

CPC分类号： B41J29/393

摘要： Systems and methods are provided for calibrating a sensory array to ensure a robust cross-process registration measurement. The calibration is implemented using a calibration step that determines the signature error amount of a given image reading sensor. The signature error amount for the sensor is stored in a signature error look-up table. When the sensors are used to sense print head alignment, the correction may be implemented by accessing the signature error look-up table for the given sensor when calibrating the print heads. The signature error look-up table provides an amount of offset for each sensor that is used in determining the appropriate head position of a given print head to calibrate the print heads for the signature error associated with the given sensor.

摘要翻译： 提供了系统和方法来校准感觉阵列，以确保鲁棒的交叉过程配准测量。 使用确定给定图像读取传感器的签名错误量的校准步骤来实现校准。 传感器的签名错误量存储在签名错误查询表中。 当传感器用于感测打印头对准时，校正可以通过在校准打印头时访问给定传感器的签名错误查找表来实现。 签名错误查找表为每个传感器提供了一定量的偏移量，用于确定给定打印头的适当头部位置，以校准与给定传感器相关联的签名错误的打印头。

公开(公告)号：US07193638B2

公开(公告)日：2007-03-20

申请号：US10998986

申请日：2004-11-30

申请人： Howard A. Mizes ,  Peter Paul ,  Stanely J. Wallace ,  Michael D. Borton ,  Kenneth R. Ossman

发明人： Howard A. Mizes ,  Peter Paul ,  Stanely J. Wallace ,  Michael D. Borton ,  Kenneth R. Ossman

IPC分类号： G06K9/00 ,  G03G21/00

CPC分类号： G03G15/5041 ,  G03G2215/0158

摘要： System and methods are provided for detecting color separation misalignment in raster optical scanners. A dash minimum response curve is obtained from a plurality of minimal responses sensed from a plurality of dashes in a test pattern. The frequency of the dash minimum response curve a is used to detect skew or bow, depending on whether the frequency is a constant or a variable.

摘要翻译： 提供了用于检测光栅光学扫描仪中的颜色分离不对准的系统和方法。 从测试图案中的多个破折号中感测到的多个最小响应获得冲击最小响应曲线。 破折号最小响应曲线a的频率用于检测偏斜或弓形，取决于频率是常数还是变量。

公开(公告)号：US07690746B2

公开(公告)日：2010-04-06

申请号：US12053206

申请日：2008-03-21

申请人： David A. Mantell ,  Jason O'Neil ,  Kenneth R. Ossman

发明人： David A. Mantell ,  Jason O'Neil ,  Kenneth R. Ossman

IPC分类号： B41J29/38

CPC分类号： B41J29/02 ,  B41J2/2114 ,  B41J2/2142 ,  B41J29/393

摘要： A method for detecting a defect in an inkjet print head for printing a substantially clear ink includes including an ultraviolet or infrared sensitive material in the substantially clear ink, marking a test image on a substrate by jetting the substantially clear ink through one or more jets of the inkjet print head to be evaluated, exposing the test image to activating radiation having a wavelength to which the included ultraviolet or infrared sensitive material responds. During or following the exposing, the test image is evaluated with an image sensor, and whether the inkjet print head or any one of the one or more jets thereof being evaluated is defective is then determined based on the evaluation. A system for the method is also set forth.

摘要翻译： 用于检测喷墨打印头中用于打印基本透明墨水的缺陷的方法包括在基本透明的墨水中包括紫外线或红外线敏感材料，通过一个或多个射流喷射基本上透明的墨水， 要评估的喷墨打印头，将测试图像暴露于具有所包含的紫外线或红外敏感材料响应的波长的激活辐射。 在曝光期间或之后，使用图像传感器评估测试图像，并且基于评估来确定喷墨打印头或其评估的一个或多个喷射中的任何一个是否有缺陷。 还阐述了该方法的系统。

公开(公告)号：US07548316B2

公开(公告)日：2009-06-16

申请号：US11737083

申请日：2007-04-18

申请人： Ruddy Castillo ,  Barry Paul Mandel ,  Kenneth R. Ossman ,  Stanley J. Wallace ,  Michael D. Borton

发明人： Ruddy Castillo ,  Barry Paul Mandel ,  Kenneth R. Ossman ,  Stanley J. Wallace ,  Michael D. Borton

IPC分类号： G01N21/25

CPC分类号： G01B11/16 ,  B41J11/0095 ,  B65H7/14 ,  B65H2220/09 ,  B65H2511/17 ,  B65H2511/514 ,  B65H2513/511 ,  B65H2553/412 ,  B65H2701/1311 ,  G03G15/6561 ,  G03G2215/00561 ,  G03G2215/00586 ,  G03G2215/0059 ,  G03G2215/00721 ,  G03G2215/0158 ,  B65H2220/03 ,  B65H2220/01

摘要： A lead edge and/or trail edge sheet curl sensing and constraint method and system. First and second light emitters and detector pairs are aligned such that the light beams from the first light emitter and second light emitter cross at the transport media sheet substrate path, which constitutes the path of a media sheet substrate with zero curl. A media sheet substrate with either positive or negative curl on the lead edge of the sheet substrate interrupts light beams from the first and second light emitters, as detected by first and second light detectors. A similar approach can be used to detect the trail edge curl. The time delay between the light beam interruptions is proportional to the sheet substrate curl, and the order of interruptions indicates whether the sheet substrate curl is positive or negative. A first pair and a second pair of substrate constraint rollers can also be provided in the paper path upstream and downstream of the sensing system. The roller pairs closest to the sensor are made of relatively non-deformable materials or of materials of similar elasticity so that different media are constrained in the sensor zone with the same sheet trajectory relative to the nip.

摘要翻译： 一种前沿和/或边缘边缘卷曲感知和约束方法和系统。 对准第一和第二发光器和检测器对，使得来自第一光发射器和第二光发射器的光束在传输介质片基板路径处交叉，其构成具有零卷曲的介质片基板的路径。 在第一和第二光检测器检测到的在片状基板的引线边缘上具有正或负卷曲的介质片基板中断来自第一和第二发光体的光束。 可以使用类似的方法来检测尾迹卷曲。 光束中断之间的时间延迟与片材基板卷曲成正比，中断顺序表示片基板卷曲是正还是负。 也可以在传感系统的上游和下游的纸路中提供第一对和第二对基板约束辊。 最靠近传感器的辊对由相对不可变形的材料或具有相似弹性的材料制成，使得传感器区域中不同的介质被限制在具有相对于辊隙的相同片材轨迹。

公开(公告)号：US20090047032A1

公开(公告)日：2009-02-19

申请号：US11838383

申请日：2007-08-14

申请人： Paul A. Hosier ,  Shawn P. Updegraff ,  Robert P. Herloski ,  R. Enrique Viturro ,  Howard A. Mizes ,  Kenneth R. Ossman

发明人： Paul A. Hosier ,  Shawn P. Updegraff ,  Robert P. Herloski ,  R. Enrique Viturro ,  Howard A. Mizes ,  Kenneth R. Ossman

IPC分类号： G03G15/00

CPC分类号： G03G15/5041 ,  G03G2215/00042 ,  G03G2215/0164

摘要： A printing apparatus has a substantially shiny photoreceptor imaging surface, and a photosensor array disposed to receive specularly-reflected light from the imaging surface. A quantity of toner is placed on the imaging surface, and data is derived based on light reflected from the imaging surface. The reflected light is filtered to a color effectively complementary to the toner color. The system avoids noise caused by diffusely-reflected light from powdered toner.

摘要翻译： 打印设备具有基本上光泽的感光体成像表面和设置成从成像表面接收镜面反射光的光电传感器阵列。 将一定量的调色剂放置在成像表面上，并且基于从成像表面反射的光导出数据。 反射光被过滤到与调色剂颜色有效互补的颜色。 该系统避免了由粉状调色剂的漫反射光引起的噪音。

公开(公告)号：US5343326A

公开(公告)日：1994-08-30

申请号：US100809

申请日：1993-08-02

申请人： Kenneth R. Ossman ,  Susan E. Dunn

发明人： Kenneth R. Ossman ,  Susan E. Dunn

IPC分类号： B41J2/44 ,  G02B26/12 ,  G02B26/08

CPC分类号： G02B26/124

摘要： The pre-polygon scanning path length of a raster output scanning system is reduced by replacing a required cylinder lens, or lenses, with two cylindrical mirrors. One mirror with a negative, concave surface and a second positive cylindrical mirror. The first mirror directs the light beam to the second mirror. The second mirror directs the light onto the facets of a rotating polygon to form a focused beam in the vertical axis of the polygon. The function of the two cylindrical mirrors is to act as a telephoto lens to properly focus the image of the laser at the polygon facet while reducing the total pre-polygon path length.

摘要翻译： 光栅输出扫描系统的前多边形扫描路径长度通过用两个柱面镜替换所需的柱面透镜或透镜来减少。 一个具有负的凹面和一个第二正圆柱镜的镜子。 第一个镜子将光束引导到第二个镜子。 第二个镜子将光引导到旋转多边形的面上，以在多边形的垂直轴上形成聚焦光束。 两个柱面镜的功能是用作长焦镜头，以便在减少总前多边形路径长度的同时在激光多边形面处适当地聚焦图像。

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。