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1. 发明申请

US20170326801A1 BEARING BASED LEVELING ASSEMBLY FOR THREE-DIMENSIONAL OBJECT PRINTING 审中-公开
公开(公告)号：US20170326801A1
公开(公告)日：2017-11-16
申请号：US15154220
申请日：2016-05-13
申请人： Xerox Corporation
发明人： Aaron M. Moore , Ron E. Dufort , Timothy G. Shelhart , Timothy D. Slattery
IPC分类号： B29C64/307 , B29C64/40 , B29C65/30 , B29C64/30 , B33Y30/00 , B33Y40/00
CPC分类号： B29C64/188 , B29C64/30 , B29C64/307 , B29C64/393 , B29C64/40 , B29C65/30 , B33Y10/00 , B33Y30/00 , B33Y40/00
摘要： A three-dimensional object printer comprises a conveyor having a surface configured to convey a three-dimensional object in a first direction; and a leveling assembly configured to level a surface of the three-dimensional object as the conveyer conveys the three-dimensional object in the first direction, the leveling assembly comprising (i) a roller having a cylindrical shape, the roller having an outer surface that moves upon the surface of the three-dimensional object to level the surface of the three-dimensional object; and (ii) a guide device arranged between the roller and the planar surface of the conveyer, the device being configured to mechanically interact with the roller to maintain a constant distance between the outer surface of the roller and the planar surface of the conveyer.

2. 发明授权

US11117386B2 Ink reservoir with pneumatically driven integrated piston and shut-off valves 有权
公开(公告)号：US11117386B2
公开(公告)日：2021-09-14
申请号：US16705296
申请日：2019-12-06
申请人： Xerox Corporation
发明人： Gregory A. Ludgate , Timothy G. Shelhart , Michael J. Severn , Richard P. Ficarra , Dale T. Platteter , Victoria L. Warner
IPC分类号： B41J2/175
摘要： An inlet seal, an outlet seal, and a piston are connected to a shaft. The inlet seal seals an ink inlet of an ink reservoir. The outlet seal seals an ink outlet of the ink reservoir. Also, the piston is within a cylinder. The inlet seal, the outlet seal, and the piston all move with the shaft. A biasing member contacts the piston to bias the piston in a first direction. Pressurized air simultaneously provided to the cylinder and to the ink reservoir biases the piston in a second direction, opposite the first direction, and pressurizes ink within the ink reservoir. Moving the shaft in the first direction does not seal the ink inlet but does seal the ink outlet. Moving the shaft in the second direction seals the ink inlet but does not seal the ink outlet, thus allowing the pressurized ink out from the ink reservoir.

3. 发明授权

US10717284B1 System and method for attenuating the drying of ink from a printhead during periods of printer inactivity 有权
公开(公告)号：US10717284B1
公开(公告)日：2020-07-21
申请号：US16367695
申请日：2019-03-28
申请人： Xerox Corporation
发明人： Timothy G. Shelhart , Piotr Sokolowski , Sean R. Keyes , Ana R. Fietz-Bogota
IPC分类号： B41J2/165 , B41J2/17
摘要： A capping station is configured for storing printheads during printer inactivity to preserve the viscosity of the ink in the nozzles of the printheads. Each capping station has a receptacle, a planar member having a shaft that moves bidirectionally within an opening in a floor of the receptacle, a source of cleaning fluid, and a vacuum source. A controller is operatively connected to actuators to move the receptacle so a seal on an upper wall of the receptacle engages a printhead housing and to move the planar member within the receptacle. The controller also operates a pump to move cleaning fluid through the receptacle and to operate the vacuum source to pull ink from the nozzles of a printhead to the faceplate of the printhead. The planar member is moved proximate the faceplate so the ink forms a film that preserves the viscosity of the ink in the nozzles.

4. 发明授权

US09206010B2 Cycling media support for compiled sets using one motor direction 有权
标题翻译：使用一个电机方向循环媒体支持编译集
公开(公告)号：US09206010B2
公开(公告)日：2015-12-08
申请号：US14138274
申请日：2013-12-23
申请人： XEROX Corporation
发明人： Timothy G. Shelhart , Aaron M. Moore , Samuel P. Sadtler
IPC分类号： B65H31/34 , B65H31/30 , B65H29/52 , B65H31/26 , B65H39/00 , B42C1/12 , B65H37/04
CPC分类号： B65H31/3009 , B42B4/00 , B42C1/12 , B65H29/52 , B65H31/24 , B65H31/26 , B65H31/30 , B65H31/3018 , B65H31/34 , B65H37/04 , B65H39/00 , B65H2301/4212 , B65H2301/4213 , B65H2402/342 , B65H2403/942 , B65H2403/946 , B65H2701/18292 , B65H2801/27
摘要： A sheet-receiving surface comprises retractable bars movable between a first position and a second position. The first position is a first distance away from a mounting support. The second position is a second distance away from the mounting support. The first distance is greater than the second distance. Pivot arms, having a first end and a second end opposite the first end, are rotationally attached at the first end to the retractable bars and rotationally attached at the second end to the mounting support. Bias elements, operatively connected to the pivot arms, bias the retractable bars to the first position. A link is operatively connected to the retractable bars and an actuator. The sheet-receiving surface accumulates sheets of media into sets of sheets. Responsive to operation of the actuator, the link applies a force to move the retractable bars to the second position, forming an opening to allow the sets of sheets to drop, forming a stack of sets of sheets.
摘要翻译：片材接收表面包括可在第一位置和第二位置之间移动的伸缩杆。第一个位置是远离安装支架的第一个位置。第二位置距安装支架的第二距离。第一距离大于第二距离。具有与第一端相对的第一端和第二端的枢转臂在第一端处旋转地附接到可缩回杆，并且在第二端处旋转地附接到安装支撑件。可操作地连接到枢转臂的偏压元件将可伸缩杆偏压到第一位置。连杆可操作地连接到可伸缩杆和致动器。片材接收表面将介质片堆积成一组片材。响应于致动器的操作，连接件施加力以将可伸缩杆移动到第二位置，形成开口以允许纸张组下降，形成一叠纸张。

5. 发明授权

US09160892B1 Inkjet print head protection by scanning and moire analysis 有权
标题翻译：喷墨打印头保护通过扫描和波纹分析
公开(公告)号：US09160892B1
公开(公告)日：2015-10-13
申请号：US14632219
申请日：2015-02-26
申请人： Xerox Corporation
发明人： Timothy G. Shelhart , Aaron M. Moore , Samuel P. Sadtler , Donald R. Fess
IPC分类号： B41J11/42 , H04N1/60 , B41J29/393
CPC分类号： H04N1/6033 , B41J29/393 , H04N1/605
摘要： A print head protection system is used in connection with an inkjet printer having a print head adapted for elevating. A projector upstream of the print head projects a reference pattern onto the media sheet. An imaging camera captures a digital image of the projected pattern. An analyzer compares the digital image of the projected pattern with the reference pattern. If moiré fringes are detected, the moiré fringes are analyzed for media sheet curl. An error signal is created when the sheet curl exceeds a predetermined distance above the process path. A mitigation control raises the print head to preclude damage in response to the signal. Alternately, the sheet can be discarded.
摘要翻译：打印头保护系统与具有适于提升的打印头的喷墨打印机结合使用。打印头上游的投影仪将参考图案投影到介质片上。成像相机拍摄投影图案的数字图像。分析仪将投影图案的数字图像与参考图案进行比较。如果检测到莫尔条纹，则分析莫尔条纹以进行纸张卷曲。当纸张卷曲超过处理路径上方的预定距离时，产生错误信号。减轻控制提高了打印头，以防止对信号的响应。或者，片材可以被丢弃。

6. 发明授权

US09132979B1 Shuttling nip set for media sheet inversion 有权
标题翻译：用于介质板反转的穿梭压区
公开(公告)号：US09132979B1
公开(公告)日：2015-09-15
申请号：US14270866
申请日：2014-05-06
申请人： Xerox Corporation
发明人： Aaron M. Moore , Carlos M. Terrero , Timothy G. Shelhart , Roberto A. Irizarry
IPC分类号： B65H5/06 , B65H15/00
CPC分类号： B65H15/00 , B65H5/062 , B65H2301/33312 , B65H2301/34112 , B65H2404/14211 , B65H2404/1521 , B65H2404/1522
摘要： A shuttling nip set sheet inverter is for use with a digital printing system. A shuttle nip selectively rotates in a forward or reverse direction. The shuttle nip rollers are mounted for mutual revolving orbit about an orbital axis. The shuttle nip rollers are also mounted for mutual translation in the process direction. An inversion nip is disposed adjacent a main nip and downstream from the shuttle nip. A diverter gate has a first end adjacent the shuttle nip and a second end adjacent the inversion nip. In duplex operation, the media sheet lead edge will pass through the shuttle nip. The shuttle nip will revolve orbitally and translate downstream. The trail edge will become the lead edge, inverting the media sheet, which enters the main nip. The diverter gate moves from an inversion position to a storage position away from the process path.
摘要翻译：一个穿梭夹具组合式逆变器用于数字打印系统。梭动辊隙选择性地沿正向或反向旋转。穿梭夹辊安装成围绕轨道轴线相互旋转轨道。往复夹紧辊也可以在加工方向上进行相互平移。反向压区设置在主压区附近并且在往复压区中的下游。分流门具有邻近穿梭辊隙的第一端和邻近翻转辊隙的第二端。在双面打印操作中，介质薄片的引导边缘将通过穿孔间隙。穿梭辊隙将沿轨道旋转并向下游转化。尾迹将成为前缘，翻转进入主压区的介质片。分流门从反转位置移动到远离处理路径的存储位置。

7. 发明申请

US20190248130A1 SHEET DETECTION CIRCUIT USING ELECTRICAL ELEMENTS CONTACTING CONDUCTIVE VACUUM BELT 审中-公开
公开(公告)号：US20190248130A1
公开(公告)日：2019-08-15
申请号：US15896114
申请日：2018-02-14
申请人： Xerox Corporation
发明人： Aaron M. Moore , Timothy G. Shelhart , Timothy D. Slattery , Joseph M. Ferrara, JR. , Carlos M. Terrero , Jacob R. McCarthy , Roberto A. Irizarry
IPC分类号： B41F17/00 , B65H23/18 , B41F15/08 , B41F33/00
CPC分类号： B41F17/007 , B41F15/0809 , B41F33/00 , B65H23/18 , B65H2404/1362 , B65H2515/702
摘要： Devices include electrically conductive elements contacting a vacuum belt, and a voltage source connected to the electrically conductive elements. The electrically conductive elements form an electrical circuit from the voltage source, through the belt, and back to the voltage source. The electrically conductive elements are positioned so that they are separated from the belt when the belt moves the sheets of media between the electrically conductive elements and the belt. A processor is capable of identifying leading edges of the sheets of media on the belt (when voltage of the electrical circuit changes from a relatively higher voltage to a relatively lower voltage) and identifying trailing edges of the sheets of media on the belt (when the voltage of the electrical circuit changes from the relatively lower voltage back to the relatively higher voltage).

8. 发明授权

US09981422B2 Cam based leveling assembly for three-dimensional object printing 有权
公开(公告)号：US09981422B2
公开(公告)日：2018-05-29
申请号：US15154118
申请日：2016-05-13
申请人： Xerox Corporation
发明人： Aaron M. Moore , Ron E. Dufort , Timothy G. Shelhart , Timothy D. Slattery
IPC分类号： B29C64/188 , B29C64/307 , B29C64/393 , B33Y30/00 , B29L9/00
CPC分类号： B29C64/188 , B29C64/307 , B29C64/393 , B29L2009/00 , B33Y10/00 , B33Y30/00
摘要： A three-dimensional object printer comprises a conveyor having a surface configured to convey a three-dimensional object in a first direction; a leveling assembly configured to level a surface of the three-dimensional object as the conveyer conveys the three-dimensional object in the first direction, the leveling assembly comprising (i) a member, (ii) a roller connected to the member having a cylindrical shape, the roller having an outer surface that moves upon the surface of the three-dimensional object to level a surface of the three-dimensional object, and (iii) an actuator arranged near the member, the actuator being configured to mechanically interact with the member to move the roller with respect to the planar surface of the conveyer; and a controller configured to, as the outer surface of the roller moves upon the surface of the three-dimensional object, operate the actuator to move the roller with respect the conveyer.

9. 发明授权

US09193171B2 Chemically reactive test strip for detecting mis-firing print heads with clear fluids 有权
标题翻译：化学反应性测试条，用于检测具有透明流体的失效打印头
公开(公告)号：US09193171B2
公开(公告)日：2015-11-24
申请号：US14178608
申请日：2014-02-12
申请人： XEROX CORPORATION
发明人： Aaron M. Moore , Timothy G. Shelhart , Roberto A. Irizarry , Carlos M. Terrero
IPC分类号： B41J29/38 , B41J2/21
CPC分类号： B41J2/2132 , B41J2/16579 , B41J29/02
摘要： A jetting-fault analysis system can include a print head with a plurality of nozzles for ejecting a print medium, a testing substrate that can include a carrier and at least one color-changing material that changes color and forms a color pattern upon exposure to at least one color-change inducer, an applicator for delivering a color-change inducer to the testing substrate, and a color-pattern imaging system for analyzing the color pattern.
摘要翻译：喷射故障分析系统可以包括具有用于喷射打印介质的多个喷嘴的打印头，可以包括载体的测试基板和至少一种颜色变化材料，所述颜色变化材料在曝光时变色并形成颜色图案至少一个变色诱导剂，用于将变色诱导剂输送到测试基板的涂布器，以及用于分析颜色图案的颜色图案成像系统。

10. 发明申请

US20150224788A1 CHEMICALLY REACTIVE TEST STRIP FOR DETECTING MIS-FIRING PRINT HEADS WITH CLEAR FLUIDS 有权
标题翻译：用于检测具有可清除流体的错误打印头的化学反应性测试条
公开(公告)号：US20150224788A1
公开(公告)日：2015-08-13
申请号：US14178608
申请日：2014-02-12
申请人： XEROX CORPORATION
发明人： Aaron M. Moore , Timothy G. Shelhart , Roberto A. Irizarry , Carlos M. Terrero
IPC分类号： B41J2/21
CPC分类号： B41J2/2132 , B41J2/16579 , B41J29/02
摘要： A jetting-fault analysis system can include a print head with a plurality of nozzles for ejecting a print medium, a testing substrate that can include a carrier and at least one color-changing material that changes color and forms a color pattern upon exposure to at least one color-change inducer, an applicator for deliver a color-change inducer to the testing substrate, and a color-pattern imaging system for analyzing the color pattern.
摘要翻译：喷射故障分析系统可以包括具有用于喷射打印介质的多个喷嘴的打印头，可以包括载体的测试基板和至少一种颜色变化材料，所述颜色变化材料在曝光时变色并形成颜色图案至少一个变色诱导器，用于将变色诱导器传送到测试基板的施加器，以及用于分析该颜色图案的彩色图案成像系统。

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