公开(公告)号：US20210094233A1

公开(公告)日：2021-04-01

申请号：US17050781

申请日：2018-09-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Randall WEST ,  Justin M. ROMAN ,  Alexander David LAWS ,  Jeffrey BERGESON ,  Kevin HULICK

IPC: B29C64/329 ,  B33Y40/00 ,  B01F13/02

Abstract: A 3D printing system comprises a pressure system to provide a negative pressure and a hopper having a first opening to receive powder to be used for printing, wherein the powder is received in an open state of the first opening. The hopper has a second opening to guide air from outside the hopper to inside the hopper and has a third opening connected to the pressure system so as to provide for a negative pressure inside the hopper, the negative pressure to overcompensate for the air receive through the second opening such that a pressure being lower when compared to an ambient pressure of the hopper is generated inside the hopper.

公开(公告)号：US20140210890A1

公开(公告)日：2014-07-31

申请号：US13754292

申请日：2013-01-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Erick B. KINAS ,  Justin M. ROMAN

IPC: B41J2/07

CPC classification number: B41J11/42 ,  B41J2/2135

Abstract: In an embodiment, a processor-readable medium stores code representing instructions that when executed by a processor cause the processor to determine a media advance error for each one of multiple page regions on a media page. The instructions further cause the processor to control a media advance mechanism to compensate for the media advance error in each page region.

Abstract translation: 在一个实施例中，处理器可读介质存储代表指令的代码，所述指令当由处理器执行时导致处理器确定媒体页面上的多个页面区域中的每个页面的每一个的介质提前错误。 指令还使得处理器控制介质提前机制以补偿每个页面区域中的介质提前错误。

公开(公告)号：US20210206078A1

公开(公告)日：2021-07-08

申请号：US16075603

申请日：2017-04-21

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Wesley R. SCHALK ,  Kris M. ENGLISH ,  Justin M. ROMAN ,  Kevin E. SWIER ,  David OTIS

IPC: B29C64/259 ,  B29C64/153 ,  B29C64/321 ,  B29C64/357 ,  B33Y30/00 ,  B33Y10/00

Abstract: A three-dimensional (3D) printer includes a selective solidification module to selectively solidify portions of successive layers of a build material on a build platform. The 3D printer also includes a cartridge receiver to hold a removable material cartridge that accepts material from the 3D printer and makes material available to the 3D printer for printing of the 3D object.

公开(公告)号：US20200147886A1

公开(公告)日：2020-05-14

申请号：US16620362

申请日：2017-07-31

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Nicholas WANG ,  Michael CROCKETT ,  William WINTERS ,  Arthur H. BARNES ,  Wesley R. SCHALK ,  Justin M. ROMAN

IPC: B29C64/35 ,  B29C64/218 ,  B29C64/357 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y40/00 ,  B29C64/321

Abstract: The technology described herein includes a spreader that creates scattered incidental particles in a build chamber when spreading build material is applied in the build platform. One or more vacuum sources create negative pressure zones in one or more receptacles to collect the incidental particles in the build chamber during printing process and thus minimize the scattering of the incidental particles.

公开(公告)号：US20210197449A1

公开(公告)日：2021-07-01

申请号：US16075675

申请日：2017-07-31

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： David R. OTIS, Jr. ,  Kevin E. SWIER ,  Justin M. ROMAN ,  Wesley R. SCHALK

IPC: B29C64/153 ,  B29C64/329 ,  B29C64/336 ,  B29C64/357 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: Example implementations relate to different mixtures of build materials deliverable during a three dimensional (3D) print operation. In some examples, a 3D print apparatus may include a delivery hopper to deliver build material to a print zone of the 3D print apparatus and a plurality of build material hoppers to which the delivery hopper is connected for receipt of at least one of a corresponding plurality of build materials. A controller of the 3D print apparatus may direct that variable proportions of a first build material relative to a second build material are receivable by the delivery hopper from the plurality of build material hoppers during the 3D print operation, where different mixtures of the variable proportions of the first build material and the second build material are deliverable to the delivery hopper during the 3D print operation.

公开(公告)号：US20210178664A1

公开(公告)日：2021-06-17

申请号：US16077749

申请日：2017-07-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Wesley R. SCHALK ,  Kris M. ENGLISH ,  Justin M. ROMAN ,  Kevin E. SWIER

IPC: B29C64/153 ,  B29C64/329 ,  B29C64/165 ,  B29C64/357

Abstract: A 3D printer and method include a build platform for thermal fusion. The 3D printer also includes a cartridge receiver to hold a material cartridge that accepts build material into the material cartridge from the 3D printer and makes build material available from the material cartridge for printing.

公开(公告)号：US20170246858A1

公开(公告)日：2017-08-31

申请号：US15519856

申请日：2014-10-31

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Cristina VALLE DE LA MUNOZA ,  Jeffrey A. WAGNER ,  Justin M. ROMAN

IPC: B41J2/045 ,  B41J25/00 ,  B41J2/175

CPC classification number: B41J2/04535 ,  B41J2/04563 ,  B41J2/04586 ,  B41J2/175 ,  B41J19/202 ,  B41J25/003 ,  B41J29/38

Abstract: Ambient temperature based flow rates can in an example include a setting a flow rate of ink to a printhead mounted in a carriage based on an ambient temperature associated with the printhead, measuring a flow rate of ink to the printhead, and causing a decrease in a velocity of the carriage in response to the flow rate of ink satisfying the threshold flow rate.

公开(公告)号：US20210323232A1

公开(公告)日：2021-10-21

申请号：US16075625

申请日：2017-07-19

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Joshua SCHMALE ,  Robert Lawrence WINBURNE ,  Tait A. REGNIER ,  Michael DUDA ,  Justin M. ROMAN

IPC: B29C64/35 ,  B29C64/245 ,  B29C64/165 ,  B29C64/209 ,  B29C64/393 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: In one example in accordance with the present disclosure, an additive manufacturing platform is described. The additive manufacturing platform includes a vibrating bed on which a volume of build material is to be disposed. The bed is to vibrate to remove excess build material and operates in at least two extraction modes during a build material extraction period. The additive manufacturing platform also includes a non-vibrating frame to support the vibrating bed.

公开(公告)号：US20210206099A1

公开(公告)日：2021-07-08

申请号：US16075487

申请日：2017-07-20

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Wesley R. SCHALK ,  Justin M. ROMAN ,  Randall WEST ,  Robert Lawrence WINBURNE

IPC: B29C64/357 ,  B29B17/00 ,  B29C64/307

Abstract: A build material recovery system for a three-dimensional (3D) printer can include a selective solidification device to create a 3D object using build material, a build processing device to separate the 3D object from unfused build material, a material separating and conditioning device to condition the unfused build material, and a material storage device to store the conditioned build material.

公开(公告)号：US20210178668A1

公开(公告)日：2021-06-17

申请号：US16077091

申请日：2017-07-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Wesley R. SCHALK ,  Kris M. ENGLISH ,  Justin M. ROMAN

IPC: B29C64/165 ,  B29C64/259 ,  B29C64/209 ,  B29C64/336 ,  B29C64/357 ,  B29C64/268 ,  B29C64/245

Abstract: A three-dimensional (3D) printer and method including a material cartridge receiver to hold a removable material cartridge to accept build material from the 3D printer and to make build material available from the material cartridge to the 3D printer for printing of the 3D object. A liquid cartridge receiver holds a removable liquid cartridge to make available print liquid from the liquid cartridge for a print assembly.