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公开(公告)号：US20210331246A1
公开(公告)日：2021-10-28
申请号：US16607894
申请日：2018-06-05
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jason Hower , Michael G. Monroe , James E Fischer , Andrew L Van Brocklin , Ravi Prasad
IPC: B22F10/50 , B22F10/14 , B22F12/30 , B22F12/17 , B29C64/165 , B29C64/245 , B29C64/295 , B33Y10/00 , B33Y30/00
Abstract: In an example implementation, a 3D printing system to remove components of a liquid agent includes a permeable surface. Build material formed on the permeable surface can be heated to generate vapor from a component of the liquid agent. The vapor can be drawn out of the build material through the permeable surface.
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公开(公告)号：US10654268B2
公开(公告)日：2020-05-19
申请号：US16210143
申请日：2018-12-05
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Gerard Alzona , David Maxfield , Dustin W Blair , Sterling Chaffins , Andrew L Van Brocklin
Abstract: In some examples, a controller receives impedance sensor values from an impedance sensor in a printhead, determines whether the impedance sensor values correlate to a production of an effective drive bubble for the printhead, and issues a command to modify a firing parameter for a fluid ejector of the printhead based on the impedance sensor values.
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公开(公告)号：US10183488B2
公开(公告)日：2019-01-22
申请号：US15547393
申请日：2015-04-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Gerard Alzona , David Maxfield , Dustin W Blair , Sterling Chaffins , Andrew L Van Brocklin
Abstract: In some examples, a printhead includes a firing chamber to receive printer fluid, an ejector positioned in the firing chamber to eject printer fluid droplets from the printhead, and a nozzle in fluid communication with the firing chamber. The printhead can further include an impedance sensor positioned in the firing chamber to contact printer fluid to measure impedance values of the printer fluid. The impedance sensor can be connectable to a controller to transmit impedance values of printer fluid to the controller.
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公开(公告)号：US20180022091A1
公开(公告)日：2018-01-25
申请号：US15547393
申请日：2015-04-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Gerard Alzona , David Maxfield , Dustin W Blair , Sterling Chaffins , Andrew L Van Brocklin
CPC classification number: B41J2/125 , B41J2/0451 , B41J2/04536 , B41J2/04555 , B41J2/0458 , B41J2/04581 , B41J2/11 , B41J2/14153 , B41J2/14201 , B41J29/13 , B41J2002/14354 , G01N27/10
Abstract: In some examples, a printhead includes a firing chamber to receive printer fluid, an ejector positioned in the firing chamber to eject printer fluid droplets from the printhead, and a nozzle in fluid communication with the firing chamber. The printhead can further include an impedance sensor positioned in the firing chamber to contact printer fluid to measure impedance values of the printer fluid. The impedance sensor can be connectable to a controller to transmit impedance values of printer fluid to the controller.
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Patent Agency Ranking
公开(公告)号：US09776404B2
公开(公告)日：2017-10-03
申请号：US15307091
申请日：2014-04-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter J Fricke , Andrew L Van Brocklin
CPC classification number: B41J2/14201 , B41J2/14072 , B41J2/155 , B41J2002/14491 , B41J2202/20
Abstract: A piezoelectric printhead assembly can include a plurality of piezoelectric micro-electro mechanical system (MEMS) dies each having a first application-specific integrated circuit (ASIC) die coupled to a respective piezoelectric MEMS die and a second ASIC die coupled to the respective piezoelectric MEMS die.
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公开(公告)号：US20170050438A1
公开(公告)日：2017-02-23
申请号：US15307091
申请日：2014-04-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter J Fricke , Andrew L Van Brocklin
IPC: B41J2/14
CPC classification number: B41J2/14201 , B41J2/14072 , B41J2/155 , B41J2002/14491 , B41J2202/20
Abstract: A piezoelectric printhead assembly can include a plurality of piezoelectric micro-electro mechanical system (MEMS) dies each having a first application-specific integrated circuit (ASIC) die coupled to a respective piezoelectric MEMS die and a second ASIC die coupled to the respective piezoelectric MEMS die.
Abstract translation: 压电打印头组件可以包括多个压电微电子机械系统（MEMS）管芯，每个压电微电机械系统具有耦合到相应的压电MEMS管芯的第一专用集成电路（ASIC）管芯和耦合到相应的压电MEMS的第二ASIC管芯 死。
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公开(公告)号：US20210094237A1
公开(公告)日：2021-04-01
申请号：US16608259
申请日：2018-04-04
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Timothy L Weber , Andrew L Van Brocklin , James E Clark , Jason C Hower
IPC: B29C64/393 , B33Y50/02 , B29C64/112 , B33Y30/00 , B29C64/209 , B33Y10/00
Abstract: In an example implementation, a method of 3D printing includes receiving a 2D data slice derived from a 3D object model, where the 2D data slice defines an object area of a layer of build material that is to receive a liquid functional agent and be fused as a layer of a part. The method includes determining that the 2D data slice distinguishes first and second tolerance zones within the object area. The method includes controlling a printhead to print a liquid functional agent onto the layer of build material according to a first droplet ejection spacing when printing in the first tolerance zone, and controlling the printhead to print a liquid functional agent onto the layer of build material according to a second droplet ejection spacing when printing in the second tolerance zone.
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公开(公告)号：US09855746B2
公开(公告)日：2018-01-02
申请号：US15307208
申请日：2014-04-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter J Fricke , Andrew L Van Brocklin , Scott A Linn
CPC classification number: B41J2/14209 , B41J2/04541 , B41J2/04573 , B41J2/04581 , B41J2/04588 , B41J2/0459 , B41J2/14072 , B41J2/14201 , B41J2/155 , B41J2002/14491 , B41J2202/20
Abstract: A piezoelectric printhead assembly can include a micro-electro mechanical system (MEMS) die including a plurality of nozzles and a first application-specific integrated circuit (ASIC) die coupled to the MEMS die by a first plurality of wire bonds.
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公开(公告)号：US20170043584A1
公开(公告)日：2017-02-16
申请号：US15307208
申请日：2014-04-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter J Fricke , Andrew L Van Brocklin , Scott A Linn
CPC classification number: B41J2/14209 , B41J2/04541 , B41J2/04573 , B41J2/04581 , B41J2/04588 , B41J2/0459 , B41J2/14072 , B41J2/14201 , B41J2/155 , B41J2002/14491 , B41J2202/20
Abstract: A piezoelectric printhead assembly can include a micro-electro mechanical system (MEMS) die including a plurality of nozzles and a first application-specific integrated circuit (ASIC) die coupled to the MEMS die by a first plurality of wire bonds.
Abstract translation: 压电打印头组件可以包括包括多个喷嘴的微机电系统（MEMS）管芯和通过第一多个引线接合耦合到MEMS管芯的第一专用集成电路（ASIC）管芯。
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