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1. 发明授权

US08833899B2 Flat field and density correction in printing systems 有权
标题翻译：打印系统中的平场和密度校正
公开(公告)号：US08833899B2
公开(公告)日：2014-09-16
申请号：US13537240
申请日：2012-06-29
申请人： Samuel Chen , Mark C. Rzadca , James M. Enge
发明人： Samuel Chen , Mark C. Rzadca , James M. Enge
IPC分类号： B41J29/393 , B41J2/21 , B41J2/045 , B41J2/155 , B41J11/00
CPC分类号： B41J2/2146 , B41J2/04508 , B41J2/155 , B41J11/002 , B41J2202/21
摘要： A printing system includes at least one linehead that jets ink onto a print media and an integrated imaging system that captures images of the content printed on the print media. Each linehead includes one or more printheads. A flat field correction method for the printing system includes one or more printheads printing a test block having a known print density on the print media and producing a density variation trace for each of the one or more printheads by capturing an image of each printed test block and averaging pixel data in a transport direction. A negative print mask is then produced for each printhead in the one or more printheads by inverting each density variation trace. Each negative print mask is added to, or subtracted from, respective print data values transmitted to each respective printhead in the one or more printheads.
摘要翻译：打印系统包括将墨水喷射到打印介质上的至少一个线头和捕获打印在打印介质上的内容的图像的集成成像系统。每个线头包括一个或多个打印头。用于打印系统的平场校正方法包括一个或多个打印头，其在打印介质上打印具有已知打印浓度的测试块，并通过捕获每个打印测试块的图像来产生用于该一个或多个打印头中的每一个的浓度变化轨迹并且在传送方向上平均像素数据。然后通过反转每个浓度变化迹线，为一个或多个打印头中的每个打印头产生负打印面罩。每个负打印掩模被添加到或从相应的打印数据值中减去，该值被传送到一个或多个打印头中的每个相应的打印头。

2. 发明授权

US08662627B2 Identifying a linehead producing an artifact in content printed on a moving print media 有权
标题翻译：识别在打印在移动的打印介质上的内容中产生人造物的线条
公开(公告)号：US08662627B2
公开(公告)日：2014-03-04
申请号：US13536150
申请日：2012-06-28
申请人： Samuel Chen , Mark C. Rzadca
发明人： Samuel Chen , Mark C. Rzadca
IPC分类号： B41J29/393
CPC分类号： B41J2/2146
摘要： A linehead that is producing an artifact in the content printed on a print media is identified by capturing an image of the content as the print media is moving to obtain pixel data and averaging the pixel data to produce blur in a direction the print media is moving. A determination is made as to whether the averaged pixel data is associated with content printed by a first linehead in a printing module. If the averaged pixel data is not associated with the first linehead, the averaged pixel data from an image captured by a preceding linehead is subtracted from the averaged pixel data in the image to produce averaged pixel data that is associated with a single linehead. Derivative data of the averaged pixel data is then determined. A determination is made as to whether one or more peaks are present in the derivative data.
摘要翻译：通过在打印介质正在移动以获取像素数据并对像素数据进行平均以在打印媒体正在移动的方向上产生模糊时，通过捕获内容的图像来识别在印刷在打印介质上的内容中产生伪像的线头。确定平均像素数据是否与打印模块中的第一线头打印的内容相关联。如果平均像素数据不与第一行头相关联，则从图像中的平均像素数据中减去来自前一行头部捕获的图像的平均像素数据，以产生与单个行头相关联的平均像素数据。然后确定平均像素数据的微分数据。确定衍生数据中是否存在一个或多个峰。

3. 发明申请

US20130321512A1 DETECTING STRETCH OR SHRINK IN PRINT MEDIA 有权
标题翻译：在打印介质中检测拉伸或收缩
公开(公告)号：US20130321512A1
公开(公告)日：2013-12-05
申请号：US13481984
申请日：2012-05-29
申请人： Samuel Chen , Mark C. Rzadca
发明人： Samuel Chen , Mark C. Rzadca
IPC分类号： B41J29/393
CPC分类号： B41J29/393 , B41J2/155 , B41J2/2135 , B41J2/2146 , B41J3/445 , B41J3/60 , B41J11/42 , B41J15/16 , B41J2029/3935
摘要： A print media in a printing system includes multiple test patterns with each test pattern having one or more marks. Each test pattern can have a different number of marks. A method for detecting size variations in the print media while the print media is moving through the printing system includes scanning the test patterns as the print media is moving in a transport direction to produce test pattern signals, with each signal representing a respective test pattern, and analyzing the measured test pattern signals to determine whether a size variation has occurred in the print media. One or more compensation values can be determined based on the size variation. If a size variation is detected, the operation or setting of one or more components in the printing system can be adjusted based on the one or more compensation values.
摘要翻译：打印系统中的打印介质包括多个测试图案，每个测试图案具有一个或多个标记。每个测试模式可以有不同数量的标记。一种用于在打印介质移动通过打印系统时检测打印介质中的尺寸变化的方法包括当打印介质沿输送方向移动时扫描测试图案以产生测试图案信号，每个信号表示相应的测试图案，以及分析测量的测试图案信号以确定在打印介质中是否发生尺寸变化。可以基于尺寸变化来确定一个或多个补偿值。如果检测到尺寸变化，则可以基于一个或多个补偿值来调整打印系统中的一个或多个部件的操作或设置。

4. 发明申请

US20130257966A1 TESTING OF NOZZLES USED IN PRINTING SYSTEMS 有权
标题翻译：在印刷系统中使用的喷嘴的测试
公开(公告)号：US20130257966A1
公开(公告)日：2013-10-03
申请号：US13435025
申请日：2012-03-30
申请人： Mark C. Rzadca , Lynn Schilling-Benz
发明人： Mark C. Rzadca , Lynn Schilling-Benz
IPC分类号： B41J29/393
CPC分类号： B41J2/2142 , B41J2/2146
摘要： A system for testing one or more nozzles in a nozzle plate includes a fixture for holding the nozzle plate, a gas input device for jetting gas through the nozzle, and a first stationary schlieren optical system for producing a light-intensity representation of a gas stream jetted from the nozzle. An image capture device can capture one or more images of the light-intensity representation or the light-intensity representation can be projected onto a screen.
摘要翻译：用于测试喷嘴板中的一个或多个喷嘴的系统包括用于保持喷嘴板的固定装置，用于通过喷嘴喷射气体的气体输入装置和用于产生气流的光强度表示的第一固定分光光学系统从喷嘴喷出。图像捕获设备可以捕获光强表示的一个或多个图像，或者可以将光强表示投影到屏幕上。

5. 发明申请

US20120139991A1 PRINTER FOR DETERMINING PAPER TYPE USING REFLECTION 审中-公开
标题翻译：用于使用反射来确定纸张类型的打印机
公开(公告)号：US20120139991A1
公开(公告)日：2012-06-07
申请号：US12959461
申请日：2010-12-03
申请人： Thomas F. Powers , Mark C. Rzadca , Thomas D. Pawlik
发明人： Thomas F. Powers , Mark C. Rzadca , Thomas D. Pawlik
IPC分类号： B41J29/393
CPC分类号： B41J11/009
摘要： A printer that determines paper type includes one or more short and long wavelength radiation sources sequentially outputting a short wavelength radiation and a long wavelength radiation onto a paper that reflects the long wavelength radiation and the short wavelength radiation is absorbed by a fluorescent compound in the paper resulting in the emission of long wavelength fluorescent radiation; a first detector that detects a long wavelength fluorescence signal resulting from the short wavelength source and a reflectance signal resulting from the long wavelength source; and a lookup table that determines a paper type from a plurality of paper types based on the fluorescence signal and reflectance signals.
摘要翻译：确定纸张类型的打印机包括一个或多个短波长和长波长辐射源，其顺序地将短波长辐射和长波长辐射输送到反射长波长辐射的纸上，并且短波长辐射被纸中的荧光化合物吸收导致长波长荧光辐射的发射; 第一检测器，其检测由短波长源产生的长波长荧光信号和由长波长源产生的反射信号; 以及基于荧光信号和反射信号从多个纸张类型确定纸张类型的查找表。

6. 发明申请

US20120069075A1 OPTICAL SENSOR FOR PRINTER MEDIA MOTION DETECTION 审中-公开
标题翻译：用于打印机媒体运动检测的光学传感器
公开(公告)号：US20120069075A1
公开(公告)日：2012-03-22
申请号：US12887532
申请日：2010-09-22
申请人： Thomas D. Pawlik , Mark C. Rzadca , Thomas F. Powers
发明人： Thomas D. Pawlik , Mark C. Rzadca , Thomas F. Powers
IPC分类号： B41J29/38
CPC分类号： B41J2/1753 , B41J2/1752 , B41J11/46
摘要： An inkjet printer includes a paper tray for holding print media; a pick-up roller for moving the print media along at least a portion of a pre-print zone of a paper transport path; a light source disposed along the pre-print zone of the paper transport path that directs light toward a non-print side of the print media for illuminating the non-print side of the print media; and an array sensor that receives reflected light from the non-print side of the print media; wherein data from the sensor is used to determine an amount of motion of the print media in the pre-print zone.
摘要翻译：喷墨打印机包括用于保持打印介质的纸盘; 用于沿着纸张传送路径的预打印区域的至少一部分移动打印介质的拾取辊; 沿着纸张传送路径的预打印区域设置的光源，其将光朝向打印介质的非打印面引导，以照射打印介质的非打印面; 以及阵列传感器，其接收来自所述打印介质的非打印面的反射光; 其中来自传感器的数据用于确定预打印区域中的打印介质的运动量。

7. 发明授权

US08944548B2 Printhead color density correction in printing systems 有权
标题翻译：打印系统中的打印头颜色浓度校正
公开(公告)号：US08944548B2
公开(公告)日：2015-02-03
申请号：US13747573
申请日：2013-01-23
申请人： Samuel Chen , Mark C. Rzadca , Eric K. Zeise , John T. Keech , Michael J. Piatt
发明人： Samuel Chen , Mark C. Rzadca , Eric K. Zeise , John T. Keech , Michael J. Piatt
IPC分类号： B41J29/393 , B41J2/21
CPC分类号： B41J29/393 , B41J2/2132 , B41J2/2146 , B41J2029/3935 , H04N1/504 , H04N1/506
摘要： A printing system includes a linehead that jets ink onto a moving print media to print a test block and an integrated imaging system positioned downstream of the linehead with respect to a media transport direction. The integrated imaging system includes an opening in a housing for receiving light reflected from a moving print media. A folded optical assembly in the housing receives the reflected light and transmits the light a distance. One or more image sensors, having known color filter arrays, within the housing each receive the light and capture one or more images of the printed test block. An image processing device is connected to the integrated imaging system for receiving pixel data from the one or more image sensors and configured to determine a color of the ink and a density of the printed test block using the pixel data.
摘要翻译：打印系统包括将墨水喷射到移动的打印介质上以打印测试块的线头和相对于介质输送方向定位在线头下游的集成成像系统。集成成像系统包括用于接收从移动的打印介质反射的光的外壳中的开口。外壳中的折叠光学组件接收反射光并将光传输一定距离。在壳体内具有已知滤色器阵列的一个或多个图像传感器接收光并捕获印刷的测试块的一个或多个图像。图像处理装置连接到集成成像系统，用于从一个或多个图像传感器接收像素数据，并且被配置为使用像素数据来确定墨的颜色和打印的测试块的浓度。

8. 发明申请

US20140015890A1 EDGE DETECTION IN A PRINTING SYSTEM 审中-公开
标题翻译：打印系统中的边缘检测
公开(公告)号：US20140015890A1
公开(公告)日：2014-01-16
申请号：US13548256
申请日：2012-07-13
申请人： Mark C. Rzadca , Samuel Chen
发明人： Mark C. Rzadca , Samuel Chen
IPC分类号： B41J29/38
CPC分类号： B41J11/0095 , B41J2/2132 , B41J11/002
摘要： A printing system includes one or more integrated imaging systems each positioned opposite a moving print media for capturing one or more images of the moving print media and a portion of a support device extending out from at least one edge of the moving print media. Each integrated imaging system includes an opening in a housing for receiving light reflected from the moving print media and the support device, a folded optical assembly in the housing that receives the reflected light and transmits the light a predetermined distance, and an image sensor within the housing that receives the light from the focusing lens and captures the one or more images. The folded optical assembly includes one or more mirrors that direct light to a lens assembly. The lens assembly includes a zoom lens and a focusing lens.
摘要翻译：打印系统包括一个或多个集成的成像系统，每个集成的成像系统每个定位成与移动的打印介质相对，用于捕获移动的打印介质的一个或多个图像以及从移动的打印介质的至少一个边缘延伸的支撑装置的一部分。每个集成成像系统包括在壳体中的开口，用于接收从移动的打印介质和支撑装置反射的光;壳体中折叠的光学组件，其接收反射光并将光传输预定距离;以及图像传感器，接收来自聚焦透镜的光并捕获一个或多个图像的外壳。折叠的光学组件包括将光引导到透镜组件的一个或多个反射镜。透镜组件包括变焦透镜和聚焦透镜。

9. 发明申请

US20140002536A1 FLAT FIELD AND DENSITY CORRECTION IN PRINTING SYSTEMS 有权
标题翻译：打印系统中的平面场和密度校正
公开(公告)号：US20140002536A1
公开(公告)日：2014-01-02
申请号：US13537240
申请日：2012-06-29
申请人： Samuel Chen , Mark C. Rzadca
发明人： Samuel Chen , Mark C. Rzadca
IPC分类号： B41J29/393
CPC分类号： B41J2/2146 , B41J2/04508 , B41J2/155 , B41J11/002 , B41J2202/21
摘要： A printing system includes at least one linehead that jets ink onto a print media and an integrated imaging system that captures images of the content printed on the print media. Each linehead includes one or more printheads. A flat field correction method for the printing system includes one or more printheads printing a test block having a known print density on the print media and producing a density variation trace for each of the one or more printheads by capturing an image of each printed test block and averaging pixel data in a transport direction. A negative print mask is then produced for each printhead in the one or more printheads by inverting each density variation trace. Each negative print mask is added to, or subtracted from, respective print data values transmitted to each respective printhead in the one or more printheads.
摘要翻译：打印系统包括将墨水喷射到打印介质上的至少一个线头和捕获打印在打印介质上的内容的图像的集成成像系统。每个线头包括一个或多个打印头。用于打印系统的平场校正方法包括一个或多个打印头，其在打印介质上打印具有已知打印浓度的测试块，并且通过捕获每个打印测试块的图像来产生用于该一个或多个打印头中的每一个的浓度变化轨迹并且在传送方向上平均像素数据。然后通过反转每个浓度变化迹线，为一个或多个打印头中的每个打印头产生负打印面罩。每个负打印掩模被添加到或从相应的打印数据值中减去，该值被传送到一个或多个打印头中的每个相应的打印头。

10. 发明申请

US20140002522A1 FLAT FIELD AND DENSITY CORRECTION IN PRINTING SYSTEMS 有权
标题翻译：打印系统中的平面场和密度校正
公开(公告)号：US20140002522A1
公开(公告)日：2014-01-02
申请号：US13537247
申请日：2012-06-29
申请人： Samuel Chen , Mark C. Rzadca
发明人： Samuel Chen , Mark C. Rzadca
IPC分类号： B41J29/38
CPC分类号： B41J2/2056 , B41J2/04558 , B41J2/2146 , B41J2202/20 , B41J2202/21 , H04N1/407 , H04N1/4078
摘要： A density variation correction method for a printing system includes printheads in at least one linehead printing a test block pattern on a print media. A density variation trace is produced for each printed test block in the test block patterns by capturing an image of each test block and averaging pixel data in a transport direction. The density variation traces associated with a known print density represented in the test block pattern are compared with a respective reference density value. A determination is made as to whether there is a difference between each density variation trace and the respective reference density value. If there is a difference, the density variation trace is adjusted to match the reference density value. The method can be repeated for all of the known print densities represented in the test block pattern and for all of the lineheads in the printing system.
摘要翻译：用于打印系统的密度变化校正方法包括在打印介质上打印测试块图案的至少一个线头中的打印头。通过捕获每个测试块的图像并在传输方向上对像素数据进行平均，为测试块图案中的每个印刷的测试块产生密度变化轨迹。将与测试块图案中表示的已知印刷密度相关联的浓度变化迹线与相应的参考密度值进行比较。确定每个浓度变化迹线和各个参考密度值之间是否存在差异。如果存在差异，则调整浓度变化曲线以匹配参考密度值。对于在测试块图案中表示的所有已知打印浓度以及打印系统中的所有线头，可以重复该方法。

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