公开(公告)号：US20250083445A1

公开(公告)日：2025-03-13

申请号：US18728447

申请日：2022-02-04

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

Inventor： Paul David SCHWEITZER ,  Kyle Drew Arnold BAHNSEN ,  Jeffrey Frank BELL ,  Michael W. CUMBIE ,  Judson M. LEISER ,  Melanie LIM ,  Gary G. LUTNESKY ,  Max R. QUINN ,  Laura WUSSTIG

IPC: B41J2/175

Abstract: In one example in accordance with the present disclosure, a fluid ejection device assembly is described. The fluid ejection device assembly includes a monolithically molded fluidic structure to extend between a separately molded body comprising a print fluid reservoir and a fluid ejection device. The fluidic structure includes a plenum to receive a print fluid from the body at a fluidic interface.

公开(公告)号：US20210260872A1

公开(公告)日：2021-08-26

申请号：US16769921

申请日：2019-02-06

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

Inventor： Anthony M. FULLER ,  Daren L. FORREST ,  Michael W. CUMBIE ,  Michael GROOM ,  Conrad JENSSEN

IPC: B41J2/14 ,  B41J2/145

Abstract: A device includes a plurality of fluid ejection dies, wherein each of the fluid ejection dies includes a contact pad and a plurality of fluid actuation devices. The device includes an electrical interconnect element in contact with the contact pad of each of the fluid ejection dies to electrically interconnect the plurality of fluid ejection dies.

公开(公告)号：US20210229425A1

公开(公告)日：2021-07-29

申请号：US16768046

申请日：2019-02-06

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

Inventor： Scott A. LINN ,  James Michael GARDNER ,  Michael W. CUMBIE

IPC: B41J2/045

Abstract: An integrated circuit to drive a plurality of fluid actuation devices includes a configuration register, a plurality of interfaces, and control logic. The plurality of interfaces include a mode interface and a data interface. The control logic enables writing to the configuration register in response to a signal on the mode interface transitioning to logic high with a logic high signal on the data interface.

公开(公告)号：US20200171836A1

公开(公告)日：2020-06-04

申请号：US16502479

申请日：2019-07-03

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

Inventor： James Michael GARDNER ,  Scott A. LINN ,  Stephen D. PANSHIN ,  Jefferson P. WARD ,  David Owen ROETHIG ,  David N. OLSEN ,  Anthony D. STUDER ,  Michael W. CUMBIE ,  Sirena Chi LU

IPC: B41J2/175

Abstract: A logic circuit for a replaceable print component is configured to, in response to a plurality of commands including a first command specifying the new I2C communications address and a first calibration parameter, a second command specifying the new I2C communications address and a second calibration parameter, a third command specifying the new I2C communications address and a class parameter, and/or fourth commands specifying the new I2C communications address and sub-class parameters, and at least one read request, generate count values in a count value range defined by a highest and lowest count value.

公开(公告)号：US20180244044A1

公开(公告)日：2018-08-30

申请号：US15747619

申请日：2015-10-15

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

Inventor： Devin Alexander MOUREY ,  Chien-Hua CHEN ,  Michael W. CUMBIE

IPC: B41J2/16 ,  B41J2/14

CPC classification number: B41J2/1637 ,  B41J2/14 ,  B41J2/16 ,  B41J2202/22

Abstract: In example implementations, an apparatus with an embedded service structure is provided. The apparatus may include an epoxy molded compound (EMC). At least one print head die may be embedded in the EMC. A service structure may be located within the EMC adjacent to the at least one print head die.

公开(公告)号：US20180215150A1

公开(公告)日：2018-08-02

申请号：US15748285

申请日：2015-10-30

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

Inventor： Vincent C. KORTHUIS ,  Eric T. MARTIN ,  Michael W. CUMBIE ,  Scott A. LINN

IPC: B41J2/14 ,  B41J2/175

CPC classification number: B41J2/14056 ,  B41J2/1404 ,  B41J2/175 ,  B41J2/17596 ,  B41J2002/14467 ,  B41J2202/11 ,  B41J2202/12

Abstract: According to an example, a printing system may include a drop ejecting element and a fluid circulating element corresponding to the drop ejecting element. The printing system may also include a logic device that is to receive a data stream addressed to the drop ejecting element, determine whether the data stream indicates that the drop ejecting element is to be energized, and in response to a determination that the data stream does not indicate that the drop ejecting element is to be energized, energize the fluid circulating element.

公开(公告)号：US20160129690A1

公开(公告)日：2016-05-12

申请号：US14890551

申请日：2013-06-28

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

Inventor： Ning GE ,  Chaw Sing HO ,  Adam L. GHOZEIL ,  Michael W. CUMBIE

IPC: B41J2/145 ,  B41J2/16

CPC classification number: B41J2/145 ,  B41J2/14 ,  B41J2/14016 ,  B41J2/14129 ,  B41J2/1603 ,  B41J2/162 ,  B41J2/1626 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2202/13

Abstract: Examples of fluid ejection apparatuses and methods for making fluid ejection apparatuses are described. An example method may include forming a fluid feed slot in a bulk layer of a substrate, forming a plurality of ink feed channels in at least an epitaxial layer of the substrate, each of the ink feed channels fluidically coupled to the fluid feed slot, and forming a plurality of drop generators over the substrate such that the epitaxial layer of the substrate is between the plurality of drop generators and the bulk layer and such that the each of the drop generators is fluidically coupled to the fluid feed slot by at least one of the ink feed channels.

Abstract translation: 对流体喷射装置和制造流体喷射装置的方法进行说明。 一个示例性方法可以包括在衬底的本体层中形成流体馈送槽，在衬底的至少外延层中形成多个供墨通道，每个供墨通道流体耦合到流体供给槽，以及 在所述衬底上形成多个液滴发生器，使得所述衬底的所述外延层位于所述多个液滴发生器和所述主体层之间，并且使得所述液滴发生器中的每一个通过以下中的至少一个流体耦合到所述流体供给槽 供墨通道。

公开(公告)号：US20220297113A1

公开(公告)日：2022-09-22

申请号：US17836005

申请日：2022-06-09

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

Inventor： Jeffrey A. NIELSEN ,  Michael W. CUMBIE ,  Devin Alexander MOUREY ,  Silam J. CHOY ,  Kenneth WARD ,  Christie DUDENHOEFER

IPC: B01L3/02

Abstract: A method of manufacturing a digital dispense apparatus includes molding a monolithic carrier structure, forming cut outs into a planar top surface of the monolithic carrier structure, the cut outs including a reservoir extending into part of a thickness of the monolithic carrier structure and fluid routing to connect the reservoir with a fluid dispense device, and overmolding the fluid dispense device into the monolithic carrier structure on a side of the monolithic carrier structure that is opposite to the reservoir to fluidically connect to the fluid routing.

公开(公告)号：US20210354472A1

公开(公告)日：2021-11-18

申请号：US16965231

申请日：2019-05-05

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

Inventor： James Michael GARDNER ,  Scott A. LINN ,  Stephen D. PANSHIN ,  Jefferson P. WARD ,  David Owen ROETHIG ,  David N. OLSEN ,  Anthony D. STUDER ,  Michael W. CUMBIE ,  Sirena Chi LU

IPC: B41J2/175 ,  G06F13/42

Abstract: A logic circuitry package for a replaceable print apparatus component comprises an interface to communicate with a print apparatus logic circuit, and at least one logic circuit. The logic circuit may be configured to identify, from a command stream received from the print apparatus, parameters including a class parameter, and/or identify, from the command stream, a read request, and output, via the interface, a count value in response to a read request, the count value based on identified received parameters.

公开(公告)号：US20210323315A1

公开(公告)日：2021-10-21

申请号：US16764368

申请日：2019-01-09

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

Inventor： Garrett E. Clark ,  Michael W. CUMBIE

IPC: B41J2/19 ,  B41J2/14

Abstract: A fluid ejection device may include fluid actuators, ejection chambers adjacent the fluid actuators, nozzles extending from the ejection chambers, and fluid feed holes to supply fluid from a fluid supply passage to the ejection chambers. The fluid feed holes have ports connected to the ejection chambers. The ports are sized to pass bubbles formed by the fluid actuators out of the ejection chambers.