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1. 发明申请

US20100172664A1 ADJUSTING ELECTROSTATIC CHARGES USED IN A LASER PRINTER 有权
标题翻译：调整在激光打印机中使用的静电电荷
公开(公告)号：US20100172664A1
公开(公告)日：2010-07-08
申请号：US12350202
申请日：2009-01-07
申请人： Timothy Graham Bradley , Larry M. Ernst
发明人： Timothy Graham Bradley , Larry M. Ernst
IPC分类号： G03G15/00
CPC分类号： G03G15/0266 , G03G15/065 , G03G15/5037 , G03G15/5041 , G03G2215/00042 , G03G2215/00071
摘要： Provided are a method, system, and article of manufacture for adjusting electrostatic charges used in a laser printer. A charge is applied to a surface of a photoconductor drum to create a dark voltage. An image area of the photoconductor drum is exposed with a printhead using a defined energy level to discharge the charge from the image area. An exposure voltage of the photoconductor drum is measured after the image area has been exposed by the printhead. A first optimization is performed to determine an adjusted dark voltage and an adjusted energy level based on the measured exposure voltage and the dark voltage and the energy levels applied to the photoconductor drum. An applicator voltage is applied to an applicator that applies toner to the exposed image area of the photoconductor drum. Toner density of the toner applied to the photoconductor drum is measured and a second optimization is performed to adjust the applicator voltage to produce a target toner density.
摘要翻译：提供了用于调整激光打印机中使用的静电电荷的方法，系统和制品。对感光鼓的表面施加电荷以产生暗电压。感光鼓的图像区域利用限定的能量水平的打印头进行曝光，以从图像区域排出电荷。在图像区域被打印头曝光之后，测量感光鼓的曝光电压。执行第一优化以基于测量的曝光电压和施加到感光鼓的暗电压和能级来确定经调节的暗电压和调整的能级。将施加器电压施加到施加器，其将调色剂施加到感光鼓的曝光图像区域。测量施加到光电导体鼓的调色剂的调色剂浓度，并执行第二优化以调节施加器电压以产生目标调色剂密度。

2. 发明授权

US07890005B2 Adjusting electrostatic charges used in a laser printer 有权
标题翻译：调整激光打印机中使用的静电电荷
公开(公告)号：US07890005B2
公开(公告)日：2011-02-15
申请号：US12350202
申请日：2009-01-07
申请人： Timothy Graham Bradley , Larry M. Ernst
发明人： Timothy Graham Bradley , Larry M. Ernst
IPC分类号： G03G15/00 , G03G15/02 , G03G15/04 , G03G15/08
CPC分类号： G03G15/0266 , G03G15/065 , G03G15/5037 , G03G15/5041 , G03G2215/00042 , G03G2215/00071
摘要： A method, system, and manufacture for adjusting electrostatic charges in a laser printer. A charge is applied to a photoconductor drum surface to create a dark voltage. An image area of the photoconductor drum is exposed with a printhead using a defined energy level to discharge the charge from the image area. An exposure voltage of the photoconductor drum is measured after the image area has been exposed. A first optimization is performed to determine an adjusted dark voltage and an adjusted energy level based on the measured exposure voltage and the dark voltage and the energy levels applied to the photoconductor drum. An applicator voltage is applied to an applicator that applies toner to the exposed image area of the photoconductor drum. Toner density applied to the photoconductor drum is measured and a second optimization is performed to adjust the applicator voltage to produce a target toner density.
摘要翻译：一种在激光打印机中调节静电电荷的方法，系统和制造。对感光鼓表面施加电荷以产生暗电压。感光鼓的图像区域利用限定的能量水平的打印头进行曝光，以从图像区域排出电荷。在曝光图像区域之后测量感光鼓的曝光电压。执行第一优化以基于测量的曝光电压和施加到感光鼓的暗电压和能级来确定经调节的暗电压和调整的能级。将施加器电压施加到施加器，其将调色剂施加到感光鼓的曝光图像区域。测量施加到感光鼓的调色剂密度，并执行第二优化以调节施加器电压以产生目标调色剂密度。

3. 发明授权

US12017462B2 Ink deposition uniformity compensation mechanism 有权
公开(公告)号：US12017462B2
公开(公告)日：2024-06-25
申请号：US17685946
申请日：2022-03-03
申请人： Mikel Stanich , Nikita Gurudath , Walter F. Kailey , Larry M. Ernst
发明人： Mikel Stanich , Nikita Gurudath , Walter F. Kailey , Larry M. Ernst
IPC分类号： B41J2/20 , B41J2/205 , B41J2/21 , B41J29/393 , H04N1/405 , G06K15/10
CPC分类号： B41J2/2054 , B41J2/2052 , B41J2/2132 , B41J29/393 , H04N1/405 , B41J2029/3935 , G06K15/105
摘要： A printing system is disclosed. The printing system includes at least one physical memory device to store halftone calibration logic and one or more processors coupled with the at least one physical memory device to execute the halftone calibration logic determine an uncalibrated deposition distribution for each of a plurality of pel forming elements, determine a calibrated deposition distribution for each of the plurality of pel forming elements and determine calibration values for each of the plurality of pel forming elements.

4. 发明授权

US10057462B2 Mechanism to perform force black color transformation 有权
公开(公告)号：US10057462B2
公开(公告)日：2018-08-21
申请号：US15383708
申请日：2016-12-19
申请人： Vincent William Ferreri , Walter F. Kailey , Larry M. Ernst , Claudiu Gabriel Cebuc
发明人： Vincent William Ferreri , Walter F. Kailey , Larry M. Ernst , Claudiu Gabriel Cebuc
IPC分类号： H04N1/60 , H04N1/64 , H04N1/405
CPC分类号： H04N1/6025 , H04N1/405 , H04N1/56 , H04N1/6005 , H04N1/6008 , H04N1/6027 , H04N1/646
摘要： A printing system is disclosed. The printing system includes a color management unit including one or more color caches to store input colors and corresponding output colors and a color engine (CE) to receive input colors and perform Force-K transformations to map near black input colors into pure black output colors by dynamically identifying the near black input colors based on chroma values and effective output values.

5. 发明授权

US10009514B2 Mechanism to perform force-X color management mapping 有权
公开(公告)号：US10009514B2
公开(公告)日：2018-06-26
申请号：US15232968
申请日：2016-08-10
申请人： Vincent William Ferreri , Larry M. Ernst
发明人： Vincent William Ferreri , Larry M. Ernst
IPC分类号： H04N1/60 , G06K15/02 , H04N1/405 , H04N1/52
CPC分类号： H04N1/6025 , G06K15/1878 , G06K15/1881 , H04N1/405 , H04N1/52 , H04N1/6008 , H04N1/6016 , H04N1/6027 , H04N1/603 , H04N1/6058 , H04N2201/0082
摘要： A printing system is disclosed. The printing system includes a color management unit having a common color engine (CCE) to map input colors matching one of more criteria into output colors having a single color component to generate Preserve-X colors and a color cache to store the Preserve-X colors. The Preserve-X colors include the corresponding pairs of input colors and output colors.

6. 发明授权

US09661154B1 Ink model derivation mechanism using Weibull distribution function 有权
公开(公告)号：US09661154B1
公开(公告)日：2017-05-23
申请号：US15053478
申请日：2016-02-25
申请人： Mikel John Stanich , Nikita Gurudath , Larry M. Ernst
发明人： Mikel John Stanich , Nikita Gurudath , Larry M. Ernst
IPC分类号： H04N1/00 , H04N1/405
CPC分类号： H04N1/00068 , H04N1/00005 , H04N1/00034 , H04N1/00092 , H04N1/405 , H04N1/4078 , H04N1/605
摘要： A printing system is disclosed. The printing system includes a printer controller to receive optical density (OD) measurement data corresponding to application of a halftone pattern using ink on a medium in a printing system and calculate a predicted OD versus normalized ink coverage relationship for the printing system based on the received OD measurement data.

7. 发明授权

US09180712B1 Test patterns for print heads having two image sources 有权
标题翻译：具有两个图像源的打印头的测试图案
公开(公告)号：US09180712B1
公开(公告)日：2015-11-10
申请号：US14485357
申请日：2014-09-12
申请人： Mikel John Stanich , Kartheek Chandu , Larry M. Ernst
发明人： Mikel John Stanich , Kartheek Chandu , Larry M. Ernst
IPC分类号： B41J29/393 , B41J2/045
CPC分类号： B41J29/393 , B41J2/04581 , B41J2/04591 , B41J2/2135 , B41J2029/3935
摘要： A method is described that entails printing a series of test patterns. Each test pattern has its own respective set of outer lines and set of inner lines. The series of test patterns have a different intended spacing between their respective inner lines and outer lines. The intended spacing of each test pattern is printed in a manner that correlates the intended spacing of each test pattern with its test pattern. Each of the outer lines are printed with a first print source and each of the inner lines printed with a second print source. Inner lines of a first set of the test patterns are shorter than inner lines of a second set of the test patterns to enhance resolution at which differences in the spacings between respective inner and outer lines of same test patterns are able to be detected across different test patterns.
摘要翻译：描述了需要打印一系列测试图案的方法。每个测试图案都有自己各自的外线和内线组。一系列测试图案在它们各自的内线和外线之间具有不同的预期间距。每个测试图案的预期间距以将每个测试图案的预期间距与其测试图案相关联的方式打印。每个外线都印有第一打印源，每条内线印有第二打印源。第一组测试图案的内线比第二组测试图案的内线短，以增强能够在不同测试中检测相同测试图案的相应内外线之间的间隔的差异的分辨率模式。

8. 发明授权

US08985756B2 Dynamic dryer control in printing 有权
标题翻译：动态干燥机控制打印
公开(公告)号：US08985756B2
公开(公告)日：2015-03-24
申请号：US13468460
申请日：2012-05-10
申请人： Stuart J. Boland , Larry M. Ernst , Scott Johnson , Casey E. Walker
发明人： Stuart J. Boland , Larry M. Ernst , Scott Johnson , Casey E. Walker
IPC分类号： B41J2/01 , B41J11/00
CPC分类号： B41J11/002
摘要： Embodiments described herein provide variable heat control for a printer. One system includes a dryer operable to dry ink applied to a print medium. The system also includes a controller communicatively coupled to the dryer and operable to filter a bitmap to provide variable heat control from the dryer to the applied ink according to the bitmap to attach the ink to the print medium. The print medium may be a continuous form print medium. In this regard, the controller maybe operable to determine a speed at which the continuous form print medium is moving, to generate a heat control signal operable to provide the variable heat control, and to delay transmission of the heat control signal based on the determined speed of the continuous form print medium until the ink applied to the continuous form print medium is within range of the dryer.
摘要翻译：本文描述的实施例为打印机提供可变的热控制。一个系统包括可干燥施加到打印介质上的油墨的烘干机。该系统还包括通信地耦合到干衣机的控制器，可操作以根据位图对位图进行过滤以提供从烘缸到应用油墨的可变热控制，以将油墨附着到打印介质上。打印介质可以是连续形式的打印介质。在这方面，控制器可操作以确定连续形式打印介质正在移动的速度，以产生可操作以提供可变热控制的热控制信号，并且基于所确定的速度来延迟热控制信号的传输的连续形式的打印介质，直到施加到连续形式的打印介质的油墨在干燥器的范围内。

9. 发明授权

US08542418B2 Printer calibration for printers with fixed print array structures 有权
标题翻译：具有固定打印阵列结构的打印机的打印机校准
公开(公告)号：US08542418B2
公开(公告)日：2013-09-24
申请号：US12868311
申请日：2010-08-25
申请人： Kartheek Chandu , Larry M. Ernst , Sreenath R. Vantaram , Mikel J. Stanich
发明人： Kartheek Chandu , Larry M. Ernst , Sreenath R. Vantaram , Mikel J. Stanich
IPC分类号： H04N1/46
CPC分类号： H04N1/6033
摘要： The systems and methods presented herein provide for calibrating a print engine of a printing system. The printing system prints image data on a print medium and scans the printed image data. Color values of the scanned image data are then measured and various tints of color values and their transition locations are identified. A calibration module estimates the original optical densities of the identified color value tints and generates a target optical density for each of the identified color value tints using the estimated original optical densities to determine print irregularities in the color values of the scanned image data. The calibration module then generates a halftone screen based on the mean optical densities and applies the generated halftone screen to the print engine to calibrate the print engine.
摘要翻译：本文提出的系统和方法用于校准打印系统的打印引擎。打印系统在打印介质上打印图像数据并扫描打印的图像数据。然后测量扫描图像数据的颜色值，并且识别颜色值及其转变位置的各种色调。校准模块估计所识别的颜色值色调的原始光密度，并且使用估计的原始光密度来生成每个识别色值色调的目标光密度，以确定扫描图像数据的颜色值中的印刷不规则性。校准模块然后基于平均光密度生成半色调屏幕，并将生成的半色调屏幕应用于打印引擎以校准打印引擎。

10. 发明授权

US08322811B2 Multi-pass calibration in fixed printhead array printers 有权
标题翻译：固定打印头阵列打印机的多通道校准
公开(公告)号：US08322811B2
公开(公告)日：2012-12-04
申请号：US12640692
申请日：2009-12-17
申请人： Kartheek Chandu , Mikel J. Stanich , Larry M. Ernst
发明人： Kartheek Chandu , Mikel J. Stanich , Larry M. Ernst
IPC分类号： B41J2/205
CPC分类号： B41J2/2052 , B41J2/2146 , H04N1/4078
摘要： Methods and apparatus herein provide for automated calibration of multiple printheads used in a multi-pass printing system. Aspects hereof print a plurality of gray scale printed patterns each printed pattern corresponding to a gray scale value for each of the multiple printheads. The printed patterns are then measured to determine the intensity (e.g., optical density) of each of the printed patterns. A measurement function is derived from the measured intensity and gray scale levels used to print each pattern. Calibrated transfer functions are then determined from the measurement function and target function where each calibrated transfer function relates, for a corresponding printhead, an input gray scale level of a pixel in an image to be printed to a calibrated gray scale level to use for the corresponding printhead when operating in multi-pass mode.
摘要翻译：本文的方法和装置提供了用于多遍打印系统中的多个打印头的自动校准。本发明的方面打印多个灰度印刷图案，每个印刷图案对应于多个打印头中的每一个的灰度值。然后测量印刷图案以确定每个印刷图案的强度（例如，光密度）。从用于打印每个图案的测量强度和灰度级别导出测量功能。然后，校准的传递函数从每个校准传递函数所涉及的测量功能和目标函数确定，对于相应的打印头，将要打印的图像中的像素的输入灰度级别用于校准的灰度级以用于相应的打印头在多通道模式下运行。

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