公开(公告)号：US20210331398A1

公开(公告)日：2021-10-28

申请号：US16608490

申请日：2018-07-23

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

Inventor： Michael Duda ,  Justin M. Roman ,  Luke P. Sosnowski

IPC: B29C64/364 ,  G05B19/18 ,  B33Y50/02 ,  B33Y30/00

Abstract: An example three-dimensional printer includes a humidity source, a build material reservoir, a conduit between the humidity source and the build material reservoir, an air source to transfer air from the humidity source through the conduit towards the build material reservoir, and a valve assembly connected to the conduit to control a flow of the air in the conduit while the printer enters an inactive mode of operation. The air source is to remain in an active mode of operation. The air source is controlled to transmit the air in the conduit until the air in the conduit adjacent to the build material reservoir reaches a temperature and relative humidity threshold.

公开(公告)号：US20190202128A1

公开(公告)日：2019-07-04

申请号：US16075805

申请日：2017-07-20

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

Inventor： Robert Lawrence WINBURNE ,  Randall West ,  Nicholas Wang ,  Luke P. Sosnowski

IPC: B29C64/357 ,  B29C64/307 ,  B29C64/25 ,  B29C31/02

CPC classification number: B29C64/357 ,  B29C31/02 ,  B29C64/25 ,  B29C64/307 ,  B33Y40/00

Abstract: In some examples, a build material recycling system of a three-dimensional (3D) printer can include a build material transport system of the 3D printer, a build material recycling device of the 3D printer that includes a fluidizing membrane and is connected to the build material transport system, and a recycled build material hopper of the 3D printer connected, via the build material

公开(公告)号：US09145011B2

公开(公告)日：2015-09-29

申请号：US13756404

申请日：2013-01-31

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

Inventor： Luke P. Sosnowski ,  Pierre J. Kaiser ,  Alexander Toia ,  Arthur H. Barnes ,  Erich Waldherr Hacker

IPC: B41J13/00

CPC classification number: B41J13/0009 ,  B41J13/0027

Abstract: A printing system includes a printhead to eject ink onto a print medium in a print zone. A first roller pair is adjacent to the print zone to advance a print medium into the print zone. A second roller pair upstream from the first roller pair, and driven by an independent motor, advances the print medium to the first roller pair in a position control mode. A controller causes the second roller pair to switch from the position control mode to a force control mode when a leading edge of the print medium reaches the first roller pair. The second roller pair applies a substantially constant force to the print medium in the force control mode to push the leading edge of the print medium against the first roller pair while the first roller pair is stationary.

Abstract translation: 打印系统包括用于将墨水喷射到打印区域中的打印介质上的打印头。 第一辊对与打印区域相邻以将打印介质推进到打印区域中。 由第一辊对上游并由独立电动机驱动的第二辊对在位置控制模式下将打印介质推到第一辊对。 当打印介质的前端到达第一辊对时，控制器使第二辊对从位置控制模式切换到力控制模式。 第二辊对在力控制模式下对打印介质施加基本恒定的力，以在第一辊对静止时将打印介质的前端推靠在第一辊对上。

公开(公告)号：US20140121086A1

公开(公告)日：2014-05-01

申请号：US13660461

申请日：2012-10-25

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

Inventor： Gabriel Michael Rask Gassoway ,  Luke P. Sosnowski ,  Kynan Lon Church ,  Mike Fairchild

IPC: F16C13/00

CPC classification number: F16C13/02 ,  F16C17/02 ,  F16C33/723 ,  F16C35/02

Abstract: A shaft for a media transport assembly includes a first assembly provided at a first end of the shaft to datum the shaft, and a second assembly provided at a second end of the shaft to bias the shaft in a direction opposite the second end of the shaft such that the first assembly and the second assembly each provide point contact with a respective surface oriented substantially perpendicular to an axis of the shaft.

Abstract translation: 用于介质输送组件的轴包括设置在轴的第一端以基准轴的第一组件，以及设置在轴的第二端处的第二组件，用于在与轴的第二端相反的方向上偏压轴 使得第一组件和第二组件各自提供与基本垂直于轴的轴线定向的相应表面的点接触。