公开(公告)号：US20160107442A1

公开(公告)日：2016-04-21

申请号：US14890494

申请日：2013-06-28

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

Inventor： Mark Sanders Taylor ,  Craig Olbrich ,  Byron K. Davis

IPC: B41J2/145 ,  B41J2/05

CPC classification number: B41J2/05 ,  B41J2/1404 ,  B41J2/145 ,  B41J3/60 ,  B41J2002/14475

Abstract: In one example, a printhead structure includes: a first layer; an array of openings in the first layer to form printing fluid ejection chambers; a second layer on the first layer; an array of orifices through the second layer, each orifice located adjacent to one of the openings in the first layer; a groove in the first layer spanning substantially a full length of the array of openings; and multiple holes through the second layer to the groove in the first layer.

Abstract translation: 在一个示例中，打印头结构包括：第一层; 第一层中的开口阵列以形成印刷液体喷射室; 第一层上的第二层; 通过第二层的孔的阵列，每个孔邻近第一层中的一个开口定位; 所述第一层中的凹槽基本上跨越所述开口阵列的整个长度; 以及穿过第二层的多个孔到第一层中的凹槽。

公开(公告)号：US11642693B2

公开(公告)日：2023-05-09

申请号：US17672442

申请日：2022-02-15

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

Inventor： Roberto A. Pugliese ,  Jeffrey A. Nielsen ,  Christie Dudenhoefer ,  Craig Olbrich ,  Debora J. Thomas

IPC: B05C11/00 ,  B05C5/02

CPC classification number: B05C11/00 ,  B05C5/02

Abstract: An alignment system, in an example, may include a substrate comprising at least one nanowell, at least one fluid ejection device comprising at least one die, the at least one die comprising as least one nozzle, and an alignment device to align the at least one nozzle to the at least one nanowell.

公开(公告)号：US20210069744A1

公开(公告)日：2021-03-11

申请号：US16766246

申请日：2018-01-30

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

Inventor： Roberto A. Pugliese ,  Jeffrey A. Nielsen ,  Christie Dudenhoefer ,  Craig Olbrich ,  Debora J. Thomas

IPC: B05C11/00 ,  B05C5/02

Abstract: An alignment system, in an example, may include a substrate comprising at least one nanowell, at least one fluid ejection device comprising at least one die, the at least one die comprising as least one nozzle, and an alignment device to align the at least one nozzle to the at least one nanowell.

公开(公告)号：US20200173581A1

公开(公告)日：2020-06-04

申请号：US16621470

申请日：2017-07-14

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

Inventor： Craig Olbrich ,  Alexander N. Govyadinov

IPC: F16K99/00

Abstract: A microfluidic valve may include a firing chamber having an orifice, a first portion of a liquid conduit connected to the firing chamber at a first port, a second portion of the liquid conduit connected to the firing chamber at a second port and a thermal resistor. The thermal resistor is to form a bubble within the firing chamber to expel liquid from the firing chamber through the orifice such that a first meniscus forms across the first port and a second meniscus forms across the second port to interrupt liquid flow between the first portion and the second portion of the liquid conduit.

公开(公告)号：US20190016133A1

公开(公告)日：2019-01-17

申请号：US16067304

申请日：2016-04-29

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

Inventor： Alexander Govyadinov ,  Craig Olbrich

IPC: B41J2/14

Abstract: In an example implementation, a method of printing with an emulsion, includes generating an emulsion of non-water based fluid and water based fluid on a printhead, and ejecting the emulsion through a printhead nozzle.

公开(公告)号：US09352560B2

公开(公告)日：2016-05-31

申请号：US14890494

申请日：2013-06-28

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

Inventor： Mark Sanders Taylor ,  Craig Olbrich ,  Byron K. Davis

IPC: B41J2/15 ,  B41J2/145 ,  B41J2/05 ,  B41J3/60 ,  B41J2/14

CPC classification number: B41J2/05 ,  B41J2/1404 ,  B41J2/145 ,  B41J3/60 ,  B41J2002/14475

Abstract: In one example, a printhead structure includes: a first layer; an array of openings in the first layer to form printing fluid ejection chambers; a second layer on the first layer; an array of orifices through the second layer, each orifice located adjacent to one of the openings in the first layer; a groove in the first layer spanning substantially a full length of the array of openings; and multiple holes through the second layer to the groove in the first layer.

Abstract translation: 在一个示例中，打印头结构包括：第一层; 第一层中的开口阵列以形成印刷液体喷射室; 第一层上的第二层; 通过第二层的孔的阵列，每个孔邻近第一层中的一个开口定位; 所述第一层中的凹槽基本上跨越所述开口阵列的整个长度; 以及穿过第二层的多个孔到第一层中的凹槽。

公开(公告)号：US20160082745A1

公开(公告)日：2016-03-24

申请号：US14958022

申请日：2015-12-03

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

Inventor： Alexander Govyadinov ,  Craig Olbrich ,  Brian M. Taff

IPC: B41J2/175

CPC classification number: B41J2/17596 ,  B41J2/1404 ,  B41J2/14145 ,  B41J2/1433 ,  B41J2/15 ,  B41J2/175 ,  B41J2002/14387 ,  B41J2002/14467 ,  B41J2202/12

Abstract: In an embodiment, a fluid ejection device includes a die substrate having first and second fluid slots along opposite substrate sides and separated by a substrate central region. First and second internal columns of closed chambers are associated with the first and second slots, respectively, and the internal columns are separated by the central region. Fluidic channels extending across the central region fluidically couple closed chambers from the first internal column with closed chambers from the second internal column. Pump actuators in each closed chamber pump fluid through the channels from slot to slot.