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公开(公告)号：US20230143131A1
公开(公告)日：2023-05-11
申请号：US18153888
申请日：2023-01-12
申请人： Xerox Corporation
IPC分类号： B29C64/165 , B29C64/236 , B29C64/314 , B33Y40/00
CPC分类号： B29C64/165 , B29C64/236 , B29C64/314 , B33Y40/00 , B33Y10/00
摘要： A three-dimensional object printer includes at least one ejector that is operated to form an uppermost layer of photopolymer material on a substrate. The ejected uppermost photopolymer layer is partially cured and a portion of mesh sheet is positioned on the partially cured layer before the at least one eject continues to eject photopolymer material onto the uppermost layer. The portion of the mesh sheet reinforces the layers of photopolymer material and adds strength and durability to the overall part being formed with the photopolymer material.
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公开(公告)号：US10710367B2
公开(公告)日：2020-07-14
申请号：US16390237
申请日：2019-04-22
申请人： Xerox Corporation
发明人： Pratima Gattu Naga Rao , Sean Campbell Hunter , Christopher Jon Laharty , Jonathan Robert Brick , John Milton Brookfield , Tony Russell Rogers , Michael Joel Edwards , Hong Zhao , Mandakini Kanungo , Yanjia Zuo , Daniel R. Hahn , Santokh S. Badesha , John R. Andrews
摘要： The present teachings describe a printhead assembly. The printhead assembly includes a first plate and a second plate stacked together. The printhead assembly includes a first adhesive between the first plate and the second plate for bonding the plates together. The printhead assembly includes a second adhesive surrounding an outer edge of the first adhesive wherein the second adhesive has an oxygen migration rate lower than an oxygen migration rate of the first adhesive. An oxygen sensitive component is contained within the outer edge of the first adhesive.
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3.发明授权公开(公告)号：US10688809B2
公开(公告)日：2020-06-23
申请号：US16037312
申请日：2018-07-17
申请人： Xerox Corporation
摘要： A printer includes an ultraviolet (UV) curing device having UV light emitting diodes (LEDs) to cure UV curable inks ejected onto a surface after the surface travels past a plurality of printheads in the printer. A UV detector having UV sensors is positioned opposite the UV curing device so the UV sensors and UV LEDs are opposite one another in a one-to-one correspondence. A controller operates the UV curing device to direct UV light into the UV detector and receives electrical signals generated by the UV sensors. The controller compares these electrical signals to a predetermined threshold to identify defective LEDs in the UV curing device. The controller then determines how to move the UV curing device across the path of the surface to irradiate areas of the surface previously opposite the defective UV LEDs.
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公开(公告)号：US10688773B2
公开(公告)日：2020-06-23
申请号：US15472867
申请日：2017-03-29
申请人： Xerox Corporation
IPC分类号： B33Y50/02 , B33Y10/00 , B33Y30/00 , B29C64/129 , B29C64/386 , B29K105/00
摘要： A print system and a method for confirming complete curing of a marking material are disclosed. For example, the print system includes a plurality of printheads arranged in a two-dimensional array, a curing light source, a curing confirmation system, a movable member to hold an object and a controller to control movement of the movable member to move the object past the array of printheads, to operate the plurality of printheads to eject the marking material onto the object as the object passes the two-dimensional array of printheads, to operate the curing light source to cure the marking material and to operate the curing confirmation system to confirm that the curing of the marking material is complete.
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公开(公告)号：US20190283454A1
公开(公告)日：2019-09-19
申请号：US16429526
申请日：2019-06-03
申请人： Xerox Corporation
摘要： A system for printing on a multi-dimensional object includes a plurality of print heads, and a printing chase comprising one or more alignment elements configured to provide accurate registration of an object holder (also configured as an object packaging) relative to the print heads. The system further includes an actuator configured to move the printing chase relative to the print heads. The system is configured to receive information corresponding to an alignment element that is employed for positioning the object holder on the printing chase, determine a position a printable area using the retrieved information, receive information relating to print data to be printed on the printable area, use the determined position of the printable area to control a movement of the printing chase relative to the print heads, and operate the print heads to eject marking material onto the printable area to print data on the printable area.
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公开(公告)号：US10322583B2
公开(公告)日：2019-06-18
申请号：US15221905
申请日：2016-07-28
申请人： Xerox Corporation
发明人： Pratima Gattu Naga Rao , Sean Campbell Hunter , Christopher Jon Laharty , Jonathan Robert Brick , John Milton Brookfield , Tony Russell Rogers , Michael Joel Edwards , Hong Zhao , Mandakini Kanungo , Yanjia Zuo , Daniel R. Hahn , Santokh S. Badesha , John R. Andrews
摘要： The present teachings describe a printhead assembly. The printhead assembly includes a first plate and a second plate stacked together. The printhead assembly includes a first adhesive between the first plate and the second plate for bonding the plates together. The printhead assembly includes a second adhesive surrounding an outer edge of the first adhesive wherein the second adhesive has an oxygen migration rate lower than an oxygen migration rate of the first adhesive. An oxygen sensitive component is contained within the outer edge of the first adhesive.
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7.发明申请公开(公告)号：US20190033137A1
公开(公告)日：2019-01-31
申请号：US15662644
申请日：2017-07-28
申请人： Xerox Corporation
摘要： A method for evaluating curing in an ink composition comprises depositing an ink composition on the surface of an object via a direct-to-object inkjet printing system to form a film thereon, the ink composition comprising a photoinitiator capable of initiating a free radical polymerization process in the ink composition upon the absorption of light to cure the deposited film and a fluorophore capable of emitting viscosity-dependent fluorescence upon the absorption of light; exposing, in-situ, the deposited film to light generated by a first source of light under conditions which initiate the free radical polymerization process to cure the deposited film; exposing the cured film to light generated by a second source of light under conditions which induce fluorescence emission by the fluorophore in the cured film; measuring the fluorescence emission; and determining a degree of cure in the cured film from the measured fluorescence emission and predetermined calibration data.
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公开(公告)号：US10175162B2
公开(公告)日：2019-01-08
申请号：US14825876
申请日：2015-08-13
申请人： Xerox Corporation
发明人： Nancy Y. Jia , Mandakini Kanungo , Wei Hong , Jing Zhou
摘要： This disclosure provides a workflow method and system associated with a paper-based sensor. Specifically, provided is a paper-based sensor workflow including printing of customized security sensing information and bio-reagents to produce a paper-based sensor, applying a test material, such as, but not limited to, blood, to the paper-based sensor, capturing an image of the paper-based sensor and performing a colorimetric process; and performing one or more analytics to produce results associated with the test material.
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9.发明授权公开(公告)号：US09980362B1
公开(公告)日：2018-05-22
申请号：US15465754
申请日：2017-03-22
申请人： Xerox Corporation
IPC分类号： H05H1/24
CPC分类号： H05H1/2406 , H05H2001/2412 , H05H2001/2418
摘要： A flexible plasma surface treatment device is configured to conform to an irregular surface of an object to enable treatment of the surface with plasma formed by an electrode in the device. The flexible plasma treatment device includes a layer of flexible dielectric material having an upper surface and a lower surface, a first flexible electrode completely encapsulated within the layer of dielectric material, a second flexible electrode mounted to the lower surface of the layer of dielectric material, and a second layer of flexible electrically insulating material mounted to the lower surface of the layer of flexible dielectric material to expose a first portion of the second electrode and to cover a second portion of the second electrode at the lower surface of the dielectric material layer.
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公开(公告)号：US20170144376A1
公开(公告)日：2017-05-25
申请号：US14945828
申请日：2015-11-19
申请人： Xerox Corporation
IPC分类号： B29C67/00 , G05B19/4099
CPC分类号： G05B19/4099 , B29C64/124 , B29C70/70 , B33Y10/00 , B33Y50/02 , B33Y80/00 , G05B2219/35134 , G05B2219/49007
摘要： A three-dimensional object printer uses stereolithography to form a structure and then embed one or more objects in the structure. The printer includes a controller that operates a source of ultraviolet (UV) radiation to cure a portion of a liquid photopolymer at an interface between the liquid photopolymer and the external surface of an embedded object with reference to a meniscus formed between the liquid photopolymer and the external surface of an embedded object. The incorporation of the embedded object speeds formation of the final object and increases the durability of the final object.
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