公开(公告)号：US20050275855A1

公开(公告)日：2005-12-15

申请号：US10852243

申请日：2004-05-25

申请人： Howard Mizes ,  Beilei Xu ,  Chu-heng Liu ,  Robert Loce ,  Michael Thompson ,  Eric Hamby ,  R. Viturro

发明人： Howard Mizes ,  Beilei Xu ,  Chu-heng Liu ,  Robert Loce ,  Michael Thompson ,  Eric Hamby ,  R. Viturro

IPC分类号： B41J29/46 ,  G01N21/88 ,  G03G21/00 ,  H04N1/00 ,  H04N1/409 ,  H04N1/58

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：US20050265739A1

公开(公告)日：2005-12-01

申请号：US10852207

申请日：2004-05-25

申请人： Eric Hamby ,  R. Viturro ,  Michael Thompson ,  Eric Gross ,  Howard Mizes

发明人： Eric Hamby ,  R. Viturro ,  Michael Thompson ,  Eric Gross ,  Howard Mizes

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/00 ,  G03G15/5041

摘要： A feedback control method for controlling an ununiform banding on a photoreceptor is disclosed that includes arranging optical sensors on a photoreceptor, transferring an amount of toner on a piece of paper, measuring the resulting amount of banding, and adjusting the parameters to decrease the amount of banding. A method of measuring low deposited masses of a substrate is disclosed, using either ETAC optical sensors or full width array sensors. Finally, a copy is disclosed including at least one of NC2 array sensors and ETAC sensors, a developer roll voltage source, a ROS intensity source, an input device and a controller.

摘要翻译： 公开了一种用于控制感光体上的不均匀条带的反馈控制方法，其包括将光学传感器布置在感光体上，在一张纸上传送一定量的调色剂，测量所得到的带状量，并调整参数以减少 绑带。 公开了一种测量衬底的低沉积质量的方法，其使用ETAC光学传感器或全宽度阵列传感器。 最后，公开了包括NC2阵列传感器和ETAC传感器，显影辊电压源，ROS强度源，输入装置和控制器中的至少一个的副本。

公开(公告)号：US20050265740A1

公开(公告)日：2005-12-01

申请号：US10852216

申请日：2004-05-25

申请人： Eric Hamby ,  Eric Gross ,  Daniel Viassolo ,  Michael Thompson ,  R. Viturro ,  Fei Xiao ,  Clark Lange

发明人： Eric Hamby ,  Eric Gross ,  Daniel Viassolo ,  Michael Thompson ,  R. Viturro ,  Fei Xiao ,  Clark Lange

IPC分类号： G03G15/00 ,  G03G21/00 ,  H04N1/047

CPC分类号： G03G15/5062

摘要： Systems and methods of controlling banding defects on a receiving member in an imaging or printing process using a feedback and/or feedforward control technique. In one exemplary embodiment, a method of controlling banding defects on a receiving member in an imaging or printing process includes (a) determining a toner density on the receiving member, (b) automatically determining the extent of banding on the receiving member by comparing the determined toner density to a reference toner density value, and (c) automatically adjusting the toner density based on a result obtained from the comparison of the measured toner density to the reference toner density value, automatically determining the extent of banding and automatically adjusting the toner density being performed using a feedback and/or feedforward control routine or application.

摘要翻译： 使用反馈和/或前馈控制技术在成像或打印过程中控制接收部件上的带状缺陷的系统和方法。 在一个示例性实施例中，在成像或打印处理中控制接收部件上的条带缺陷的方法包括（a）确定接收部件上的调色剂浓度，（b）通过比较接收部件上的条带自动确定接收部件的条带宽度 将调色剂浓度确定为参考调色剂浓度值，以及（c）基于从测量的调色剂浓度与参考调色剂浓度值的比较获得的结果自动调节调色剂浓度，自动确定条带的程度并自动调节调色剂 使用反馈和/或前馈控制例程或应用来执行密度。

公开(公告)号：US20070139509A1

公开(公告)日：2007-06-21

申请号：US11315978

申请日：2005-12-21

申请人： Howard Mizes ,  Peter Paul ,  Jack LeStrange ,  Nancy Goodman ,  R. Viturro

发明人： Howard Mizes ,  Peter Paul ,  Jack LeStrange ,  Nancy Goodman ,  R. Viturro

IPC分类号： B41J2/385

CPC分类号： G02B27/0031 ,  G02B26/127

摘要： Many xerographic machines have a motor polygon assembly (MPA), which is a rotating polygonal mirror. As the MPA rotates, it reflects a modulated light beam to produce scan lines on a photoreceptor. Inconsistencies in the MPA can cause inconsistencies in the scan lines, and therefore banding in a printed document. Misalignment, improper mounting, improper manufacture, or sources can cause the MPA inconsistencies. The banding is periodic, can be measured and can be compensated for. Although the modulated light beam can be modulated by many sources, further modulation using a compensation source can reduce banding.

摘要翻译： 许多静电复印机具有马达多边形组件（MPA），它是旋转的多面镜。 当MPA旋转时，其反射调制的光束以在感光体上产生扫描线。 MPA中的不一致可能导致扫描线不一致，因此打印文档中的条带。 未对准，不正确的安装，不正确的制造或来源可能会导致MPA的不一致。 条带是周期性的，可以测量并可以补偿。 虽然调制光束可以被许多光源调制，但使用补偿源的进一步的调制可以减少条带。

公开(公告)号：US20060127110A1

公开(公告)日：2006-06-15

申请号：US11011697

申请日：2004-12-14

申请人： Michael Borton ,  R. Viturro

发明人： Michael Borton ,  R. Viturro

IPC分类号： G03G15/08

CPC分类号： G03G15/0877 ,  G03G15/0855 ,  G03G15/0889 ,  G03G2215/0607 ,  G03G2215/0827 ,  G03G2215/0894 ,  G03G2215/0897

摘要： A developer apparatus for developing an image, including a sump for storing a quantity of developer material comprised of toner of a first color and carrier material, a donor member for developing the image with toner; an auger for transporting developer material within the sump; a toner concentration sensor for sensing toner concentration in the sump, the toner concentration sensor including a viewing window, in communication with developer material in the sump, an optical sensor for measuring reflected light off the developer material and a cleaning member coacting with the auger to clean the viewing window; and a system for generating a signal indicative of the toner concentration in the sump.

摘要翻译： 一种用于显影图像的显影装置，包括用于存储由第一颜色和载体材料的调色剂组成的显影剂材料的一个贮槽，用于用调色剂显影图像的供体构件; 用于在贮槽内运输显影剂材料的螺旋钻; 调色剂浓度传感器，用于感测贮槽中的调色剂浓度，调色剂浓度传感器包括与贮槽中的显影剂材料连通的观察窗口，用于测量显影剂材料的反射光的光学传感器和与螺旋钻共同作用的清洁部件， 清洁观察窗; 以及用于产生指示贮槽中调色剂浓度的信号的系统。

公开(公告)号：US20060285134A1

公开(公告)日：2006-12-21

申请号：US11170928

申请日：2005-06-30

申请人： R. Viturro ,  Lalit Mestha

发明人： R. Viturro ,  Lalit Mestha

IPC分类号： G03F3/08

CPC分类号： G06F15/00 ,  G03G15/01 ,  G03G2215/0161 ,  H04N1/4015 ,  H04N1/6033

摘要： The method and system for printer color calibration use a combination of a full-width array (FWA) or similar page-scanning mechanism in conjunction with an spectrophotometer color measurement system in the output path of a color printer for measuring colors (e.g., on printed test sheets, banner/separation pages, etc.) with or without requiring any manual operations or operator involvement. The automatic color balance control system produces spatial tonal reproduction values for all four of the primary colors by printing patches, measuring colors using the sensor combination and automatically readjusting the spatial tone reproduction curves until a satisfactory level of printed color accuracy and uniformity are obtained. While producing color balanced TRCs, the system will automatically lock the printer output to some predetermined color patch targets. In one particular preferred embodiment, this output is locked to neutral gray when target colors are set to neutral gray inside the digital front end (DFE). After converging to the targets, the control system returns full TRCs for use inside the normal print path.

摘要翻译： 用于打印机颜色校准的方法和系统使用全色阵列（FWA）或类似的页面扫描机构的组合与彩色打印机的输出路径中的分光光度计颜色测量系统结合，用于测量颜色（例如，印刷 测试表，横幅/分页等），无需任何手动操作或操作员参与。 自动色彩平衡控制系统通过打印色块，通过使用传感器组合测量颜色并自动调整空间色调再现曲线，直到获得令人满意的打印色彩精度和均匀性水平，为所有四种原色产生空间色调再现值。 在产生色平衡TRC的同时，系统将自动将打印机输出锁定到某些预定的色标目标上。 在一个特定的优选实施例中，当在数字前端（DFE）内将目标颜色设置为中性灰色时，该输出被锁定为中性灰色。 在收敛到目标之后，控制系统返回完整的TRC以在正常打印路径内使用。

公开(公告)号：US20070076273A1

公开(公告)日：2007-04-05

申请号：US11242423

申请日：2005-09-30

申请人： R. Viturro ,  Lalit Mestha ,  Joseph Hancock ,  Tonya Love

发明人： R. Viturro ,  Lalit Mestha ,  Joseph Hancock ,  Tonya Love

IPC分类号： H04N1/46

CPC分类号： H04N1/4078

摘要： An automatic gray balance control system to produce TRCs for all primary colors in a reproduction device and for each pitch of a photoreceptor system by printing target patches for each pitch, measuring the output colors, and automatically readjusting the tone reproduction curves until a satisfactory level of accuracy is obtained as compared to the theoretical desired output. The system produces pitch-based gray balanced TRCs that are updated frequently for each pitch, with different TRCs for different pitches, to ensure consistency in output from pitch to pitch as well as from page to page on a given pitch.

摘要翻译： 一种自动灰度平衡控制系统，用于在再现装置中产生用于所有原色的TRC，并且通过印刷每个间距的目标贴片，测量输出颜色，并且自动重新调整色调再现曲线，直到满意的等级 与理论预期输出相比，获得了精度。 该系统产生基于沥青的灰色平衡TRC，每个音调经常更新，具有不同音高的不同TRC，以确保从音调到音调的输出以及给定音调从一页到另一页的输出的一致性。

公开(公告)号：US20060221341A1

公开(公告)日：2006-10-05

申请号：US11092674

申请日：2005-03-30

申请人： Peter Paul ,  Lalit Mestha ,  Claude Fillion ,  R. Viturro

发明人： Peter Paul ,  Lalit Mestha ,  Claude Fillion ,  R. Viturro

IPC分类号： G01N21/25 ,  G01J3/50

CPC分类号： G01J3/50 ,  G01J3/501 ,  G01J3/524 ,  G01J2003/466 ,  G01N21/255

摘要： Systems and method provide compensation for temperature induced peak wavelength shift of LEDs is color parameter measuring systems that use a model to reconstruct target color parameter values from the reflectance values measured when the target is illuminated by LEDs. Several models may be constructed, with each model being trained at a unique temperature, resulting in a set of models that span the temperature range of interest. In real-time, the LED based color parameter measuring system measures the temperature and interpolates between the models to estimate the appropriate model to use at the temperature of interest. The estimated model is then used to perform the color parameter value estimation.

摘要翻译： 系统和方法为温度引起的LED的峰值波长偏移提供补偿是使用模型从由LED照射目标时测量的反射率值重建目标颜色参数值的颜色参数测量系统。 可以构建几个模型，每个模型在独特的温度下进行训练，得到一组跨越感兴趣的温度范围的模型。 基于LED的颜色参数测量系统实时测量模型之间的温度和内插，以估计在感兴趣的温度下使用的适当模型。 然后使用估计的模型来执行颜色参数值估计。

公开(公告)号：US20060197966A1

公开(公告)日：2006-09-07

申请号：US11070681

申请日：2005-03-02

申请人： R. Viturro ,  Lalit Mestha

发明人： R. Viturro ,  Lalit Mestha

IPC分类号： H04N1/60 ,  G06F15/00

CPC分类号： G06F15/00 ,  H04N1/6055

摘要： A method for calibrating a printing system including a plurality of printers includes designating one of the plurality of printers as a reference printer and defining color values for a desired response for one or more printed test patches on a control page. Through a first process aimed toward achieving the desired response, a printed control page is generated with the reference printer, the control page including one or more of the test patches which, when measured, has a measured response which approaches the desired response. Through a second process aimed toward achieving a desired response, the desired response being the measured response of the reference printer, a printed control page is generated with a second of the printers, the control page including one or more of the test patches which, when measured, has a response which approaches the measured response of the reference printer.

摘要翻译： 用于校准包括多个打印机的打印系统的方法包括将多个打印机中的一个指定为参考打印机，并且为控制页面上的一个或多个印刷的测试块定义所需响应的颜色值。 通过旨在实现期望响应的第一过程，使用参考打印机生成打印的控制页面，控制页面包括测量补丁中的一个或多个，其在测量时具有接近期望响应的测量响应。 通过旨在实现期望响应的第二过程，期望的响应是参考打印机的测量响应，使用第二打印机生成打印的控制页面，控制页面包括一个或多个测试块，当时 具有接近测量的参考打印机响应的响应。

公开(公告)号：US20060221340A1

公开(公告)日：2006-10-05

申请号：US11097727

申请日：2005-04-01

申请人： R. Viturro ,  Lalit Mestha

发明人： R. Viturro ,  Lalit Mestha

IPC分类号： G01J3/46

CPC分类号： H04N1/6033

摘要： Tone reduction curves are utilized to map an input value to an output value. A tone reduction curve is normally produced by an algorithm that fits a curve to a series of knots. Knots can be determined from calibration data. Printing a calibration patch pattern yields a target patch pattern. The desired reflectances of the calibration patches and the measured reflectances of target patches can be used as calibration data. The series of knots can also include a highlight knot and a shadow knots so that the tone reduction curve functions better in the highlight and shadow regions.

摘要翻译： 音调降低曲线用于将输入值映射到输出值。 通常通过将曲线拟合成一系列节点的算法来产生色调降低曲线。 可以从校准数据确定结。 打印校准贴片图案产生目标贴片图案。 校准贴片的所需反射率和目标贴片的测量反射率可用作校准数据。 一系列节也可以包括高亮结和阴影结，使得降噪曲线在高光和阴影区域中功能更好。