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1. 发明授权

US5508789A Apparatus and method to control and calibrate deliberate speed mismatch in color IOTs 失效
标题翻译：用于控制和校准颜色IOT中故意速度失配的装置和方法
公开(公告)号：US5508789A
公开(公告)日：1996-04-16
申请号：US343816
申请日：1994-11-22
申请人： Vittorio Castelli , Joannes N. M. deJong , Lloyd Williams
发明人： Vittorio Castelli , Joannes N. M. deJong , Lloyd Williams
IPC分类号： G03G21/14 , G03G15/01 , G03G15/16 , G03G15/00
CPC分类号： G03G15/1605 , G03G15/0194 , G03G2215/0119 , G03G2215/0135 , G03G2215/1661
摘要： A method and apparatus for controlling speed match between a photoreceptor and an intermediate transfer member to prevent image degradation by creating a deliberate speed mismatch. It has been found that slight variations in speed match between a photoreceptor and transfer member will maintain acceptable image quality, however, should the relative velocity between the members change sign, unacceptable image error results. The method herein comprises slewing the velocity of a photoreceptive member over a range of speeds while monitoring the output control signal current of a drive motor. The resulting control signal current has a large oscillation at the velocity at which the speed of the photoreceptor matches that of the intermediate transfer member. A controller is then used to maintain the motor velocity at a speed slightly less than or slightly greater than the intermediate transfer member speed so as to prevent a change in sign of the relative velocity between the two moving surfaces.
摘要翻译：一种用于控制感光体和中间转印部件之间的速度匹配的方法和装置，以通过产生有意的速度失配来防止图像劣化。已经发现，感光体和转印部件之间的速度匹配的轻微变化将保持可接受的图像质量，然而，如果部件之间的相对速度改变符号，则不可接受的图像误差结果。这里的方法包括在监视驱动电动机的输出控制信号电流的同时在一定速度范围内回转感光元件的速度。所得到的控制信号电流在感光体的速度与中间转印部件的速度相匹配的速度下具有大的振荡。然后使用控制器将电机速度保持在略小于或稍大于中间转印部件速度的速度，以防止两个运动表面之间的相对速度的符号变化。

2. 发明授权

US07206008B2 Method for calibrating color in a printing device 有权
标题翻译：校准打印设备中颜色的方法
公开(公告)号：US07206008B2
公开(公告)日：2007-04-17
申请号：US10975654
申请日：2004-10-28
申请人： Joannes N M Dejong , Lloyd A. Williams , Vittorio Castelli
发明人： Joannes N M Dejong , Lloyd A. Williams , Vittorio Castelli
IPC分类号： G03G13/01
CPC分类号： G03G15/0152 , G03G15/0163 , G03G2215/0161 , G03G2215/017
摘要： A method for improving color-to-color registration in a printing device. The method includes printing a plurality of multi-color images, measuring the relative locations of a first portion of each multi-color image having a first color of each image and a second portion of each multi-color image having a second color of each image, for each image, comparing at least one difference between the first portion's location and the second portion's location with at least one desired difference between the first portion's location and the second portion's location to generate a list of positional errors, using a least square regression analysis of the list of positional errors to determine shift amounts required for placement of each first portion in subsequently generated images to within a desired degree of accuracy, and adjusting the placement of the first portion of each subsequently generated image by the determined shift amounts.
摘要翻译：一种用于改善打印设备中的颜色到颜色配准的方法。该方法包括打印多个多色图像，测量具有每个图像的第一颜色的每个多色图像的第一部分的相对位置以及具有每个图像的第二颜色的每个多色图像的第二部分对于每个图像，使用最小二乘回归分析将第一部分的位置和第二部分的位置之间的至少一个差异与第一部分的位置和第二部分的位置之间的至少一个期望的差异进行比较以生成位置错误的列表确定位置误差列表，以确定将随后生成的图像中的每个第一部分放置在期望的精度范围内所需的移位量，以及将每个后续生成的图像的第一部分的位置调整所确定的移位量。

3. 发明授权

US07126621B2 Printer using hybrid reflex writing to color register an image 有权
标题翻译：打印机使用混合反射写入颜色来注册图像
公开(公告)号：US07126621B2
公开(公告)日：2006-10-24
申请号：US10909075
申请日：2004-07-30
申请人： Vittorio Castelli , Joannes N. M. deJong , Lloyd A. Williams , Matthew Dondiego , William J. Nowak
发明人： Vittorio Castelli , Joannes N. M. deJong , Lloyd A. Williams , Matthew Dondiego , William J. Nowak
IPC分类号： B41J2/47
CPC分类号： G03G15/0163 , G03G2215/0119 , G03G2215/0158 , G03G2215/0187
摘要： An imaging device for producing multicolor images from image data containing data representing an image of a first color and an image of a second color to be registered relative to the image of the first color onto a substrate by transferring toner of the first and second colors to the substrate is provided. The imaging device includes a first imager, a second imager, a photoreceptor belt, a plurality of rollers mounted to a frame of the imaging device, an angular position sensor, an image data source and a controller. The plurality of rollers define a process path along which the photoreceptor belt is driven past the first and second imagers in a process direction. The plurality of rollers includes a drive roller that exhibits an eccentricity for which a formula relating angular position as a function of the phase angle of the drive roller to eccentricity is known. The angular position sensor detects the phase angle of the drive roller. The image data source generates image data that includes a line to be printed in the first color and in the second color. The controller is coupled to receive signals from the angular position sensor, ROS imager and image data source and is configured to drive the second imager to generate an optical output. The controller includes memory and a processor. The memory stores the formula relating angular position as a function of the phase angle of the drive roller to eccentricity. The processor calculates an appropriate time delay for starting the generation of the optical output of the second imager for printing the line to be printed in the first color and in the second color based on the time of the starting of the optical output by the ROS imager to print to print that line, the signal received from the angular position sensor, and the formula relating angular position as a function of the phase angle of the drive roller to eccentricity.
摘要翻译：一种成像装置，用于通过将第一颜色和第二种颜色的调色剂转印到基底上，从包含表示第一颜色和第二颜色的第二颜色的图像的数据的图像数据生成多色图像，提供基板。成像装置包括第一成像器，第二成像器，感光带，安装到成像装置的框架的多个辊，角位置传感器，图像数据源和控制器。多个辊限定了沿着处理方向驱动感光带穿过第一和第二成像器的处理路径。多个辊包括驱动辊，该驱动辊具有偏心度，对于该偏心，将与驱动辊的相位角相关的角位置与偏心度相关联的公式是已知的。角位置传感器检测驱动辊的相位角。图像数据源产生包括要以第一颜色和第二颜色打印的行的图像数据。控制器被耦合以从角位置传感器，ROS成像器和图像数据源接收信号，并且被配置为驱动第二成像器以产生光输出。控制器包括存储器和处理器。存储器存储关于角位置作为驱动辊的相位角与偏心度的函数的公式。处理器基于ROS成像器的光输出开始时间计算用于开始生成第二成像器的光输出的适当时间延迟，用于以第一颜色和第二颜色打印要打印的行打印以打印该线，从角位置传感器接收的信号，以及将作为驱动辊的相位角的函数的角位置与偏心相关的公式。

4. 发明授权

US07046947B1 Free sheet color digital output terminal architectures 有权
标题翻译：免费纸张彩色数字输出终端架构
公开(公告)号：US07046947B1
公开(公告)日：2006-05-16
申请号：US11010544
申请日：2004-12-13
申请人： Vittorio Castelli , Joannes N M Dejong
发明人： Vittorio Castelli , Joannes N M Dejong
IPC分类号： G03G15/24 , G03G15/20
CPC分类号： G03G15/6567 , G03G15/6564 , G03G2215/00721
摘要： A free sheet, high speed, color tandem printing system that controls registration of images from one imager to another while mechanically decoupling individual imagers and all the while maintaining relative registration of each of the color separations by the use of spherical transport servo devices or spherical nips (SNIPS). SNIPS correct skew, lateral, and process positions and ensure proper registration of a sheet with a station.
摘要翻译：一种自由纸，高速彩色串列打印系统，其控制从一个成像器到另一个成像器的图像的注册，同时机械地去耦各个成像器，并且同时通过使用球形传送伺服装置或球形胶印同时保持每个分色的相对配准（SNIPS）。 SNIPS正确的偏斜，横向和过程位置，并确保纸张与工位的正确注册。

5. 发明授权

US06456309B1 Color image registration based upon belt and raster output scanner synchronization 有权
标题翻译：基于皮带和光栅输出扫描仪同步的彩色图像配准
公开(公告)号：US06456309B1
公开(公告)日：2002-09-24
申请号：US09626465
申请日：2000-07-26
申请人： Elias Panides , Joannes N. M. deJong , Lloyd A. Williams , Vittorio Castelli , Barry M. Wolf
发明人： Elias Panides , Joannes N. M. deJong , Lloyd A. Williams , Vittorio Castelli , Barry M. Wolf
IPC分类号： B41J2385
CPC分类号： G03G15/5008 , G03G15/0152 , G03G15/0163 , G03G2215/0158 , G03G2215/017 , H04N1/0473 , H04N1/1135 , H04N2201/0471 , H04N2201/04722 , H04N2201/04732 , H04N2201/04734 , H04N2201/04744 , H04N2201/04756
摘要： Color electrophotographic printers having latent image positions synchronized with start-of-scan signals. A laser source projects a laser beam onto a multifaceted rotating polygon that sweeps that beam in a scan line across a moving photoreceptor. A start-of-scan detector produces start-of-scan signals when the laser beam is in position to write a scan line. A belt sensor produces belt signals when indicia on the photoreceptor passes a reference position. A controller receives the belt signals and the start-of-scan and then adjusts the photoreceptors rotational velocity such that the belt signals are an integral multiple of the start-of-scan signals. To reduce the impact of drive roller eccentricities on belt signal to start-of-scan signal timing, the perimeters of photoreceptor roller elements are sub-multiples of the photoreceptor length.
摘要翻译：具有与扫描开始信号同步的潜像位置的彩色电子照相打印机。激光源将激光束投射到多面旋转的多边形上，该扫描线在扫描线上扫过运动的感光体。当激光束处于写入扫描线的位置时，扫描扫描检测器产生扫描开始信号。当感光体上的标记通过参考位置时，带传感器产生带信号。控制器接收皮带信号和扫描开始，然后调节光感受器的旋转速度，使得皮带信号是扫描扫描信号的整数倍。为了减小驱动辊偏心对皮带信号对起始扫描信号定时的影响，感光鼓元件的周长是感光体长度的次倍数。

6. 发明授权

US06412907B1 Stitching and color registration control for multi-scan printing 有权
标题翻译：多扫描打印的缝合和颜色配准控制
公开(公告)号：US06412907B1
公开(公告)日：2002-07-02
申请号：US09768707
申请日：2001-01-24
申请人： Vittorio Castelli , Joannes N. M. deJong , Lloyd A. Williams , Barry Wolf , Harold M. Anderson
发明人： Vittorio Castelli , Joannes N. M. deJong , Lloyd A. Williams , Barry Wolf , Harold M. Anderson
IPC分类号： A41J3407
CPC分类号： B41J11/46
摘要： An apparatus and method are provided for the use of an optical sensor to determine the position of a printing device relative to a piece of paper or a paper-handling surface. The optical sensor reads marks to detect movement and/or direction of movement or spacing of imprints on the paper. Benefits include swath stitching calibration, color to color registration, producing printing device alignment data and generating information for printing device firing signals. The present invention is applicable to a wide field of printing technologies, including, but not limited to, acoustic ink printing, thermal ink jet printing, piezo ink jet printing, ionographic printing and a variety of other printing technologies involving the need for positioning a printing device relative to a piece of paper.
摘要翻译：提供了一种用于使用光学传感器来确定打印装置相对于一张纸或纸张处理表面的位置的装置和方法。光学传感器读取标记以检测纸张上的移动和/或移动方向或印记的间隔。优点包括条纹拼接校准，颜色到颜色配准，产生打印设备对准数据和生成打印设备点火信号的信息。本发明可应用于广泛的印刷技术领域，包括但不限于声学油墨印刷，热喷墨印刷，压电喷墨印刷，离子印刷以及涉及需要定位印刷的各种其它印刷技术相对于一张纸。

7. 发明授权

US5619313A Method and apparatus for liquid image development and transfer 失效
标题翻译：液体图像显影和转印的方法和装置
公开(公告)号：US5619313A
公开(公告)日：1997-04-08
申请号：US431803
申请日：1995-05-01
申请人： Gerald A. Domoto , John F. Knapp , Vittorio Castelli , Joannes N. M. deJong , Lloyd A. Williams
发明人： Gerald A. Domoto , John F. Knapp , Vittorio Castelli , Joannes N. M. deJong , Lloyd A. Williams
IPC分类号： G03G15/01 , G03G15/10 , G03G15/16 , G03G15/24 , G03G15/14
CPC分类号： G03G15/161 , G03G15/1605
摘要： A method and apparatus for simultaneously developing and transferring a liquid toner image. The method includes the steps of moving a photoreceptor including a charge bearing surface having a first electrical potential, applying a uniform layer of charge having a second electrical potential onto the charge bearing surface, and imagewise dissipating charge from selected portions on the charge bearing surface to form a latent image electrostatically, such that the charge-dissipated portions of the charge bearing surface have the first electrical potential of the charge bearing surface. The method also includes the steps of moving an intermediate transfer member biased to a third electrical potential that lies between said first and said second potentials, into a nip forming relationship with the moving imaging member to form a process nip. The method further includes the step of introducing charged liquid toner, having a fourth electrical potential, into the process nip, such that liquid toner sandwiched within the nip simultaneously develops image portions of the latent image onto the intermediate transfer member, and background portions of the latent image onto the charge bearing surface of the photoreceptor.
摘要翻译：一种用于同时显影和转印液体调色剂图像的方法和装置。该方法包括以下步骤：使包含具有第一电位的电荷承载表面的感光体移动，将具有第二电势的均匀的电荷层施加到电荷承载表面上，以及将从电荷承载表面上的选定部分成像的电荷从静电形成潜像，使得电荷承载表面的电荷消耗部分具有电荷承载表面的第一电位。该方法还包括以下步骤：将位于所述第一和所述第二电位之间的偏置到第三电位的中间转印部件移动成与所述运动成像部件形成压区形成关系，以形成工艺辊隙。该方法还包括将具有第四电位的带电液体调色剂引入加工辊隙中的步骤，使得夹在辊隙内的液体调色剂同时将潜像的图像部分显影到中间转印部件上，潜像到感光体的载荷表面上。

8. 发明授权

US06594460B1 Low force lateral photoreceptor or intermediate transfer belt tracking correction system 失效
标题翻译：低力横向感光体或中间转印带跟踪校正系统
公开(公告)号：US06594460B1
公开(公告)日：2003-07-15
申请号：US10241230
申请日：2002-09-10
申请人： Lloyd A. Williams , Vittorio Castelli , Joannes N. M. deJong , Elias Panides
发明人： Lloyd A. Williams , Vittorio Castelli , Joannes N. M. deJong , Elias Panides
IPC分类号： G03G1500
CPC分类号： G03G15/755 , G03G2215/00151
摘要： In a printing system in which a rotatable print image bearing belt is mounted on at least one axial belt roller, and the belt must be maintained in a desired substantially consistent lateral registration to maintain image quality, the lateral misregistration of the belt is sensed and a low and substantially constant lateral positional corrective force is applied to the belt in response to the sensing of the lateral misregistration in one of the two directions axial of the axial belt roller for at least one complete rotation of the rotatable print image bearing belt, the low and substantially constant transverse corrective force having a force level sufficient to provide the desired substantially consistent lateral registration of the print image bearing belt.
摘要翻译：在其中可旋转的印刷图像承载带安装在至少一个轴向带辊上的打印系统中，并且该带必须保持在期望的基本上一致的横向对准以保持图像质量，感测到带的横向重合失调响应于在轴向带辊轴向的两个方向之一上的侧向偏移的感测，可旋转的图像承载带的至少一个完整的旋转，低和基本上恒定的横向位置校正力被施加到带并且基本上恒定的横向校正力具有足够的力水平以提供所需的基本一致的横向对准印刷图像承载带。

9. 发明申请

US20060024104A1 Printer using hybrid reflex writing to color register an image 有权
标题翻译：打印机使用混合反射写入颜色来注册图像
公开(公告)号：US20060024104A1
公开(公告)日：2006-02-02
申请号：US10909075
申请日：2004-07-30
申请人： Vittorio Castelli , Joannes deJong , Lloyd Williams , Matthew Dondiego , William Nowak
发明人： Vittorio Castelli , Joannes deJong , Lloyd Williams , Matthew Dondiego , William Nowak
IPC分类号： G03G15/00
CPC分类号： G03G15/0163 , G03G2215/0119 , G03G2215/0158 , G03G2215/0187
摘要： An imaging device for producing multicolor images from image data containing data representing an image of a first color and an image of a second color to be registered relative to the image of the first color onto a substrate by transferring toner of the first and second colors to the substrate is provided. The imaging device comprises a first imager, a second imager, a photoreceptor belt, a plurality of rollers mounted to a frame of the imaging device, an angular position sensor, an image data source and a controller. The plurality of rollers define a process path along which the photoreceptor belt is driven past the first and second imagers in a process direction. The plurality of rollers comprises a drive roller that exhibits an eccentricity for which a formula relating angular position as a function of the phase angle of the drive roller to eccentricity is known. The angular position sensor detects the phase angle of the drive roller. The image data source generates image data that includes a line to be printed in the first color and in the second color. The controller is coupled to receive signals from the angular position sensor, ROS imager and image data source and is configured to drive the second imager to generate an optical output. The controller includes memory and a processor. The memory stores the formula relating angular position as a function of the phase angle of the drive roller to eccentricity. The processor calculates an appropriate time delay for starting the generation of the optical output of the second imager for printing the line to be printed in the first color and in the second color based on the time of the starting of the optical output by the ROS imager to print to print that line, the signal received from the angular position sensor, and the formula relating angular position as a function of the phase angle of the drive roller to eccentricity.
摘要翻译：一种成像装置，用于通过将第一颜色和第二种颜色的调色剂转印到基底上，从包含表示第一颜色和第二颜色的第二颜色的图像的数据的图像数据生成多色图像，提供基板。成像装置包括第一成像器，第二成像器，感光带，安装到成像装置的框架的多个辊，角位置传感器，图像数据源和控制器。多个辊限定了沿着处理方向驱动感光带穿过第一和第二成像器的处理路径。多个辊包括驱动辊，该驱动辊具有偏心度，对于该偏心，将与驱动辊的相位角相关的角位置与偏心度相关联的公式是已知的。角位置传感器检测驱动辊的相位角。图像数据源产生包括要以第一颜色和第二颜色打印的行的图像数据。控制器被耦合以从角位置传感器，ROS成像器和图像数据源接收信号，并且被配置为驱动第二成像器以产生光输出。控制器包括存储器和处理器。存储器存储关于角位置作为驱动辊的相位角与偏心度的函数的公式。处理器基于ROS成像器的光输出开始时间计算用于开始生成第二成像器的光输出的适当时间延迟，用于以第一颜色和第二颜色打印要打印的行打印以打印该线，从角位置传感器接收的信号，以及将作为驱动辊的相位角的函数的角位置与偏心相关的公式。

10. 发明申请

US20070048054A1 Systems and methods for medium registration 有权
公开(公告)号：US20070048054A1
公开(公告)日：2007-03-01
申请号：US11213968
申请日：2005-08-30
申请人： Joannes De Jong , Vittorio Castelli , Daniel Park , Lloyd Williams
发明人： Joannes De Jong , Vittorio Castelli , Daniel Park , Lloyd Williams
IPC分类号： G03G15/00
CPC分类号： G03G15/6567 , G03G2215/00561 , G03G2215/00679
摘要： Embodiments according to the present disclosure provide methods and systems of determining nip velocity profiles in a medium registration system, including parameterizing a set of equations into a set of standard parameters, the set of equations representing an analytic form of the nip velocity profiles; determining values of the parameters through an iteration process; and determining the nip velocity profiles based on the determined values of the parameters. The embodiments separately provide systems and methods of simulating a medium registration process, including inputting an error parameter to a velocity nominal profile of a nip in a medium registration system; determining an output value of the velocity nominal profile; and using the output value in a regression algorithm to obtain a simulated relationship, the simulated relationship indicative of a manner in which the error parameter influences the output value. The embodiments separately provide systems and methods of determining an angular velocity of a medium relative to a nip in a medium registration system, including determining a path of the nip on the medium; and determining the angular velocity as a function of a position of the nip in the path. The embodiments separately provide systems and methods of controlling nips of a medium registration system, including wagging a medium relative to a center line of two nips of the medium registration system; and then unwagging the medium relative to the center line of the two nips.

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