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21.发明授权公开(公告)号：US09375962B1
公开(公告)日：2016-06-28
申请号：US14746894
申请日：2015-06-23
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , Michael B. Monahan , James P. Calamita
IPC: B41J29/393
CPC classification number: B41J29/393 , B41J2/16579 , B41J2/16585 , B41J2/2142 , B41J2/2146
Abstract: A method of analyzing a printed test pattern includes printing first and second rows of marks, each row including at least two pluralities of marks. A gap between two pluralities of marks in the first row is located in a first position in a cross-process direction that is different than a second position of another gap between pluralities of marks in the second row. A controller identifies the first row of marks with reference to a predetermined set of image data corresponding to the first row of marks including the first plurality of marks, the second plurality of marks, and the gap in the first row.
Abstract translation: 分析打印测试图案的方法包括打印第一和第二行标记，每行包括至少两个多个标记。 第一行中的两个多个标记之间的间隙位于与第二行中的多个标记之间的另一间隙的第二位置不同的交叉处理方向上的第一位置。 控制器参考对应于包括第一多个标记，第二多个标记和第一行中的间隙的第一行标记的预定的一组图像数据来标识第一行标记。
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22.发明申请公开(公告)号：US20150336382A1
公开(公告)日：2015-11-26
申请号：US14817530
申请日：2015-08-04
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , William H. Wayman
CPC classification number: B41J2/04535 , B29C64/112 , B29C64/386 , B33Y30/00 , B33Y50/02 , B33Y70/00 , B41J2/04585 , B41J2/125 , B41J2/14153 , B41J2/16579 , B41J2/21 , B41J2/2107 , B41J2/2114 , B41J2/2142 , B41J29/393 , B41J2029/3935
Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern change the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.
Abstract translation: 一种装置在打印期间检测不起作用的喷墨。 该设备操作打印机中的打印头或打印头以在热衬底上形成测试图案。 用于形成测试图案的材料的热量改变了材料着陆区域的光密度。 成像测试图形的区域，分析图像数据以识别不工作的喷墨。
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23.发明授权System for detecting inoperative inkjets in printheads ejecting clear ink using thermal substrates 有权用于检测打印头中不工作的喷墨喷嘴的系统，使用热衬底喷射透明油墨公开(公告)号：US09162509B1
公开(公告)日：2015-10-20
申请号：US14231374
申请日：2014-03-31
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , William H. Wayman
IPC: B41J29/393 , B41J2/015 , B41J2/135 , B33Y30/00
CPC classification number: B41J2/04535 , B29C64/112 , B29C64/386 , B33Y30/00 , B33Y50/02 , B33Y70/00 , B41J2/04585 , B41J2/125 , B41J2/14153 , B41J2/16579 , B41J2/21 , B41J2/2107 , B41J2/2114 , B41J2/2142 , B41J29/393 , B41J2029/3935
Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern change the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.
Abstract translation: 一种装置在打印期间检测不起作用的喷墨。 该设备操作打印机中的打印头或打印头以在热衬底上形成测试图案。 用于形成测试图案的材料的热量改变了材料着陆区域的光密度。 成像测试图形的区域，分析图像数据以识别不工作的喷墨。
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24.发明申请SYSTEM AND METHOD OF PRINTHEAD CALIBRATION WITH REDUCED NUMBER OF ACTIVE INKJETS 有权具有减少活性墨水数量的打印机校准的系统和方法公开(公告)号：US20150077454A1
公开(公告)日：2015-03-19
申请号：US14029509
申请日：2013-09-17
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson
IPC: B41J29/393
CPC classification number: B41J29/393 , B41J2/2142 , B41J2/2146
Abstract: A method for printhead location identification includes identifying a plurality of amplitudes for a portion of pixel columns in image data generated from a portion of an image receiving surface in which marks formed by an inkjet in the printhead are printed. The amplitudes are generated from a portion of each pixel column including expected locations for a portion of the printed marks in a process direction. The method further includes identifying a cross-process location of the inkjet from a pixel column corresponding to a pixel column with a maximum local amplitude value and storing the location of the inkjet in a memory for printhead registration.
Abstract translation: 一种用于打印头位置识别的方法包括：从图像接收表面的一部分产生的图像数据中的一部分像素列识别多个振幅，其中由打印头中的喷墨形成的标记被打印。 幅度是从每个像素列的一部分产生的，包括在处理方向上打印标记的一部分的预期位置。 该方法还包括从对应于具有最大局部振幅值的像素列的像素列识别喷墨的交叉处理位置，并将喷墨的位置存储在用于打印头注册的存储器中。
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25.发明申请Digital Manufacturing System For Printing Three-Dimensional Objects On A Rotating Core 有权用于在旋转核心上打印三维物体的数字制造系统公开(公告)号：US20150017272A1
公开(公告)日：2015-01-15
申请号：US13941734
申请日：2013-07-15
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , Naveen Chopra , Jeffrey J. Folkins
IPC: B29C67/00
CPC classification number: B41J2/125 , B22F2003/1057 , B29C64/112 , B29C64/153 , B29C64/386 , B29C64/40 , B41J2/495 , B41J3/4073
Abstract: A printer forms a three-dimensional object on a rotating substrate. The printer includes a frame that supports a cylindrical member and at least one printhead such that the first printhead is positioned to eject material onto an outer surface of the cylindrical member. The frame is movable between a first position that rotatably supports the cylindrical member and a second position that enables transfer of the cylindrical member to and from the frame. A controller operates the printhead to eject material onto the rotating cylindrical member to form the object. The controller interpolates a periodic signal generated from a position encoder to adjust the operation of the printhead based on the rotational position and velocity of the cylindrical member. The controller operates a driver to move the frame to the second position to enable removal of the cylindrical member from the printer.
Abstract translation: 打印机在旋转基板上形成三维物体。 打印机包括支撑圆柱形构件和至少一个打印头的框架，使得第一打印头定位成将材料喷射到圆柱形构件的外表面上。 框架可在可旋转地支撑圆柱形构件的第一位置和能够将圆柱形构件传送到框架和从框架传送的第二位置之间移动。 控制器操作打印头以将材料喷射到旋转的圆柱形构件上以形成物体。 控制器内插从位置编码器产生的周期性信号，以基于圆筒形构件的旋转位置和速度调节打印头的操作。 控制器操作驱动器以将框架移动到第二位置，以使得能够从打印机移除圆柱形构件。
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Patent Agency Ranking
公开(公告)号：US11868058B2
公开(公告)日：2024-01-09
申请号：US17490450
申请日：2021-09-30
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , Jack T. Lestrange
CPC classification number: G03G15/0194 , G03G15/0131 , G03G15/5058 , B41J2/0057 , G03G2215/0158
Abstract: An apparatus and method for compensating for variation of the image placement for each color station in an intermediate transfer drum system. A sensor detects the image placed by the previous station and triggers the imaging on the drum such that it properly registered to the previous image. However, the variation of the drum's radius results in runout which creates an error in the image placement, since the surface drum travel will be larger or smaller than expected. The method to correct for a lead edge offset for radial runout involves dividing the drum into regions and calculating an offset center of each region. As the drum transitions from region to region the offset value is updated to determine when to start imaging for proper placement on the sheet. The offset can be derived from the image runout to find the distance traveled from the transfer point or can be measured directly from color-to-color registration variation.
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公开(公告)号：US20230196048A1
公开(公告)日：2023-06-22
申请号：US17557123
申请日：2021-12-21
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , Stuart Schweid , Michael B. Monahan , Roger L. Triplett , Douglas R. Taylor
CPC classification number: G06K19/06103 , G06F3/1222 , G06F3/1238 , G06F3/1243 , G06K19/06178
Abstract: Access is provided to a variable data printing app and a code detection app on a computer server. The variable data printing app is adapted to add machine-readable code to printable items and create a decoder app capable of decoding the machine-readable code. The code detection app is adapted to receive user identification information and transmit the user identification information to designer devices. The printable items are printed as printed products. The designer devices validate a user device based on the validity of the user identification information. In response, the variable data printing app is adapted to transmit the decoder app to validated user devices. The code detection app, operating on the user device, is adapted to decode the machine-readable code in user-acquired images into an optional secure link with the designer devices.
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公开(公告)号：US09701064B2
公开(公告)日：2017-07-11
申请号：US13941734
申请日：2013-07-15
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , Naveen Chopra , Jeffrey J. Folkins
CPC classification number: B41J2/125 , B22F2003/1057 , B29C64/112 , B29C64/153 , B29C64/386 , B29C64/40 , B41J2/495 , B41J3/4073
Abstract: A printer forms a three-dimensional object on a rotating substrate. The printer includes a frame that supports a cylindrical member and at least one printhead such that the first printhead is positioned to eject material onto an outer surface of the cylindrical member. The frame is movable between a first position that rotatably supports the cylindrical member and a second position that enables transfer of the cylindrical member to and from the frame. A controller operates the printhead to eject material onto the rotating cylindrical member to form the object. The controller interpolates a periodic signal generated from a position encoder to adjust the operation of the printhead based on the rotational position and velocity of the cylindrical member. The controller operates a driver to move the frame to the second position to enable removal of the cylindrical member from the printer.
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29.发明授权System for detecting inoperative inkjets in printheads ejecting clear ink using thermal substrates 有权用于检测打印头中不工作的喷墨喷嘴的系统，使用热衬底喷射透明油墨公开(公告)号：US09561649B2
公开(公告)日：2017-02-07
申请号：US15070589
申请日：2016-03-15
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , William H. Wayman
IPC: B41J2/125 , B41J2/165 , B41J29/393 , B41J2/045 , B41J2/21 , B29C67/00 , B41J2/14 , B33Y50/02 , B33Y30/00
CPC classification number: B41J2/04535 , B29C64/112 , B29C64/386 , B33Y30/00 , B33Y50/02 , B33Y70/00 , B41J2/04585 , B41J2/125 , B41J2/14153 , B41J2/16579 , B41J2/21 , B41J2/2107 , B41J2/2114 , B41J2/2142 , B41J29/393 , B41J2029/3935
Abstract: An apparatus detects inoperative inkjets during printing. The apparatus operates the printhead or printheads in the printer to form test pattern on a thermal substrate. The heat of the materials used to form the test pattern increase the optical density of the areas where the materials land. The area where the test pattern is formed is imaged and the image data are analyzed to identify inoperative inkjets.
Abstract translation: 一种装置在打印期间检测不起作用的喷墨。 该设备操作打印机中的打印头或打印头以在热衬底上形成测试图案。 用于形成测试图案的材料的热量增加了材料着陆区域的光密度。 成像测试图形的区域，分析图像数据以识别不工作的喷墨。
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公开(公告)号：US20170015124A1
公开(公告)日：2017-01-19
申请号：US14801529
申请日：2015-07-16
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson
IPC: B41J29/393
CPC classification number: B41J29/393 , B41J2/16579 , B41J2002/1657
Abstract: A method of identifying inoperable ejectors in a printhead includes operating a plurality of ejectors in the printhead to form a printed test pattern on an image receiving surface while the printhead and image receiving surface remain stationary. The method also includes generating image data of the printed test pattern, identifying rows of marks in the printed test pattern, and identifying an inoperable ejector in the printhead that corresponds to a missing mark in one row of marks that corresponds to one ejector in a row of ejectors in the printhead.
Abstract translation: 识别打印头中的不可操作的喷射器的方法包括在打印头中操作多个喷射器，以在打印头和图像接收表面保持静止时在图像接收表面上形成打印的测试图案。 该方法还包括生成打印的测试图案的图像数据，识别打印的测试图案中的标记行，以及识别打印头中不符合一个对应于一排喷射器的行中的缺失标记的不可操作的喷射器 的打印头中的喷射器。
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