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公开(公告)号：US09707785B2
公开(公告)日：2017-07-18
申请号：US14801529
申请日：2015-07-16
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson
IPC: B41J29/393 , B29C67/00 , B41J2/165
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.
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12.发明授权公开(公告)号：US09604412B2
公开(公告)日：2017-03-28
申请号：US13940383
申请日：2013-07-12
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , Jeffrey J. Folkins
CPC classification number: B29C67/0092 , B22F2003/1057 , B29C64/112 , B29C64/153 , B29C64/386 , B29C64/40 , B41J2/125 , B41J2/495 , B41J3/4073
Abstract: A printer forms a three-dimensional object on a rotating substrate. The printer includes a first driver to rotate the substrate past at least one printhead at a predetermined velocity and a controller to operate the printhead to eject material onto the substrate to form the object. A second driver is operated to move the position of the printhead perpendicular to the substrate to maintain a predetermined gap between the printhead and the layer of material most distant from the substrate. The second driver is further operable to move the position of the printhead parallel to the substrate to adjust a resolution of the ejected material. The controller interpolates an alternating signal generated from a position encoder to adjust the operation of the printhead based on the rotational position and velocity of the substrate.
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13.发明申请公开(公告)号：US20170050430A1
公开(公告)日：2017-02-23
申请号：US15342941
申请日：2016-11-03
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 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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14.发明申请公开(公告)号：US20160193831A1
公开(公告)日：2016-07-07
申请号：US15070589
申请日：2016-03-15
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , William H. Wayman
IPC: B41J2/125
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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15.发明申请SYSTEM AND METHOD FOR OPERATING A THREE-DIMENSIONAL PRINTER TO COMPENSATE FOR RADIAL VELOCITY VARIATIONS 有权用于操作三维打印机以补偿径向速度变化的系统和方法公开(公告)号：US20160096319A1
公开(公告)日：2016-04-07
申请号：US14508174
申请日：2014-10-07
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , Jeffrey J. Folkins
CPC classification number: B29C64/106 , B29C64/00 , B29C64/112 , B29C64/209 , B29C64/227 , B33Y30/00
Abstract: A three-dimensional object printer is configured to enable the density of material ejected by at least one printhead onto a rotating platen near its circumferential edge to be approximately the same as the density of the material ejected onto the rotating platen near the center of the platen.
Abstract translation: 三维物体打印机被配置为使得由至少一个打印头喷射的材料的密度能够靠近其圆周边缘的旋转台板上的距离大致等于在压板附近的喷射到旋转台板上的材料的密度 。
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Patent Agency Ranking
公开(公告)号：US11809932B2
公开(公告)日：2023-11-07
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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17.发明公开公开(公告)号：US20230173760A1
公开(公告)日：2023-06-08
申请号：US18162578
申请日：2023-01-31
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson
IPC: B29C64/386 , H04N1/405 , A61J3/07 , B33Y80/00 , B29C64/112 , B29C64/393 , B29C64/40 , B33Y50/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , A61J3/10 , A61K9/20
CPC classification number: B29C64/386 , H04N1/405 , A61J3/07 , B33Y80/00 , B29C64/112 , B29C64/393 , B29C64/40 , B33Y50/00 , B33Y10/00 , B33Y30/00 , B33Y50/02 , A61J3/10 , A61K9/2095 , B29C64/165
Abstract: A method of forming a chemical delivery device with an active chemical includes generating halftoned image data using a stochastic halftone screen a concentration parameter for the active chemical. The method also includes ejecting a chemical carrier including the active chemical into a portion of a plurality of cavities formed in the chemical delivery device using the halftoned image data to produce the chemical delivery device with a concentration of the active chemical corresponding to the concentration parameter.
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18.发明申请公开(公告)号：US20180043676A1
公开(公告)日：2018-02-15
申请号：US15788235
申请日：2017-10-19
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , Erwin Ruiz
CPC classification number: B33Y30/00 , B29C64/112 , B29C64/386 , B33Y10/00 , B33Y50/02
Abstract: A method of forming a three-dimensional printed object having a printed surface image includes ejecting drops of a build material to form the three-dimensional printed object with a plurality of layers of build material and at least one layer of a transparent material. The method operates ejectors to form a printed image with a marking agent so the printed image can be viewed through the at least one transparent layer. A leveler is applied to a surface of the layer of transparent material but not to the printed image.
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公开(公告)号：US09844961B1
公开(公告)日：2017-12-19
申请号：US15336444
申请日：2016-10-27
Applicant: Xerox Corporation
Inventor： David A. Mantell , Patricia J. Donaldson
IPC: B41J29/393 , B41J2/01
CPC classification number: B41J29/393 , B41J2/01 , B41J2/16579 , B41J2/16585 , B41J2/2117 , B41J2/2142 , B41J2/2146 , B41J3/543
Abstract: A method of operating a printer analyzes a printed test pattern in a low-contrast printing configuration. The method includes forming a printed test pattern having a plurality of rows of negative marks on an image receiving member, each negative mark in the plurality of rows of negative marks being surrounded by ink from at least a portion of the plurality of inkjets. The method further includes generating scanned image data of the test pattern and identifying a plurality of locations in the cross-process direction for the negative marks in at least one row of negative marks in the scanned image data of the test pattern.
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20.发明授权公开(公告)号：US09751259B2
公开(公告)日：2017-09-05
申请号：US14508174
申请日：2014-10-07
Applicant: Xerox Corporation
Inventor： Patricia J. Donaldson , Jeffrey J. Folkins
CPC classification number: B29C64/106 , B29C64/00 , B29C64/112 , B29C64/209 , B29C64/227 , B33Y30/00
Abstract: A three-dimensional object printer is configured to enable the density of material ejected by at least one printhead onto a rotating platen near its circumferential edge to be approximately the same as the density of the material ejected onto the rotating platen near the center of the platen.
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