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。

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。

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。

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。

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。

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。

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。

公开(公告)号：US20130321513A1

公开(公告)日：2013-12-05

申请号：US13481986

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 ,  B41J2/2135 ,  B41J11/009 ,  B41J11/0095 ,  H04N1/506

摘要： A printing system includes a print media and one or more non-objectionable test patterns formed or printed on the print media. An integrated imaging system captures images of the one or more non-objectionable test patterns. The integrated imaging system includes a housing, an opening in the housing for receiving light reflected from a moving print media, 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 and captures one or more images of the one or more non-objectionable test patterns. A processing device can process the one or more images to determine if one or more size variations have occurred in the print media.

摘要翻译： 打印系统包括打印介质和形成或打印在打印介质上的一个或多个不可令人反感的测试图案。 集成成像系统捕获一个或多个不可令人反感的测试图案的图像。 集成成像系统包括壳体，壳体中的开口，用于接收从移动的打印介质反射的光;外壳中的折叠光学组件，其接纳反射光并将光传输预定距离;以及图像传感器， 其接收光并且捕获一个或多个不令人反感的测试图案的一个或多个图像。 处理设备可以处理一个或多个图像以确定在打印介质中是否发生了一个或多个尺寸变化。

公开(公告)号：US08733883B2

公开(公告)日：2014-05-27

申请号：US13484369

申请日：2012-05-31

申请人： Mark C. Rzadca ,  Samuel Chen

发明人： Mark C. Rzadca ,  Samuel Chen

IPC分类号： B41J29/393 ,  B41J29/38 ,  B41J2/21

CPC分类号： B41J29/393 ,  B41J2/2135 ,  B41J11/0095 ,  B41J2029/3935 ,  H04N1/506

摘要： A printing system includes a print media having two sets of test patterns formed or printed in at least two margins adjacent a content area on the print media. The two sets of test patterns are separated by a pattern distance and at least two test patterns in each set of test patterns have a different number of marks. Two integrated imaging systems are disposed opposite the print media and are mechanically tied together and separated by a fixed distance. The integrated imaging systems substantially simultaneously capture images of the two sets of test patterns. An image processing device can process the images to determine if one or more size variations have occurred in the print media in the in-track direction.

公开(公告)号：US20140035990A1

公开(公告)日：2014-02-06

申请号：US13562369

申请日：2012-07-31

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： B41J3/543 ,  B41J2/155 ,  B41J2202/20

摘要： A printing system includes a linehead that includes two adjacent printheads and an integrated imaging system positioned opposite a moving print media for capturing one or more images of content printed on the moving print media in at least a stitch boundary or an overlap region. The integrated imaging system includes an opening in a housing for receiving light reflected from the moving print media; 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 and captures the one or more images. An image processing device is adapted to determine derivative data of averaged pixel data obtained from the one or more captured images and to detect one or more peaks in the derivative data that represent stitching artifacts.

摘要翻译： 打印系统包括一个包括两个相邻的打印头的线头和与移动的打印介质相对定位的集成的成像系统，用于捕获在至少缝合边界或重叠区域中印刷在移动的打印介质上的内容的一个或多个图像。 该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; 在壳体中的折叠光学组件，其接收反射光并将光传输预定距离; 以及在壳体内的图像传感器，其接收光并捕获一个或多个图像。 图像处理装置适于确定从一个或多个拍摄图像获得的平均像素数据的导数数据，并且检测代表缝合伪影的导数数据中的一个或多个峰值。