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    INK SUPPLY WITH INK/AIR SEPARATOR ASSEMBLY THAT IS ISOLATED FROM INK UNTIL TIME OF USE
    2.
    发明申请
    INK SUPPLY WITH INK/AIR SEPARATOR ASSEMBLY THAT IS ISOLATED FROM INK UNTIL TIME OF USE 审中-公开
    油墨供应与墨水分离器组件从使用中的墨水分离出来

    公开(公告)号：WO2006115727A1

    公开(公告)日：2006-11-02

    申请号：PCT/US2006/012922

    申请日：2006-04-05

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ,  PETERSEN, Daniel W. ,  OLSEN, David N.

    Inventor： PETERSEN, Daniel W. ,  OLSEN, David N.

    IPC: B41J2/175 ,  B41J2/19

    CPC classification number: B41J2/17556 ,  B41J2/17513 ,  B41J2/1752 ,  B41J2/17536

    Abstract: An ink container (40, 100) has a first chamber (43, 104) configured to contain ink, a second chamber (46, 102) configured to enclose an ink-air separating membrane (44, 130) consisting of a wet side portion and a dry side portion, and a structure (108, 128) configured to connect the first and second chambers. A sealing arrangement (45, 106, 152) which is associated with the structure and which keeps the first and second chambers fluidly isolated from each other until the ink container (100) is disposed on a printer ink supply station and ink can be supplied from the first chamber to the printer.

    Abstract translation: 墨水容器（40,100）具有构造成容纳墨水的第一腔室（43,104），第二腔室（46,102）构造成封闭由湿侧部分组成的墨水分离膜（44,130） 和干侧部分，以及构造成连接第一和第二腔室的结构（108,128）。 与所述结构相关联并且保持所述第一和第二腔室彼此流动隔离直到墨水容器（100）设置在打印机供墨站上并且墨水可以供应的密封装置（45,106,152） 第一个房间到打印机。

    LOGIC CIRCUITRY PACKAGE
    6.
    发明申请
    LOGIC CIRCUITRY PACKAGE 审中-公开

    公开(公告)号：WO2020117390A1

    公开(公告)日：2020-06-11

    申请号：PCT/US2019/057979

    申请日：2019-10-25

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

    Inventor： WEAVER, Quinton B. ,  GARDNER, James Michael ,  OLSEN, David N. ,  STUDER, Anthony D.

    IPC: G06F21/44 ,  G06F21/60 ,  G06F13/42 ,  B41J2/175

    Abstract: A logic circuitry package for a replaceable print apparatus component includes an interface to communicate with a print apparatus logic circuit and at least one logic circuit to transmit, via the interface, a limit parameter and a count threshold parameter. The logic circuit is to receive, via the interface, initial requests to read sensor IDs with the component connected to the apparatus and the apparatus not pneumatically actuating the component. The logic circuit is to transmit, via the interface, a resting state digital value in response to each initial request. The logic circuit is to receive, via the interface, further requests to read the sensor IDs with the component connected to the apparatus and the apparatus pneumatically actuating the component. The logic circuit is to transmit, via the interface, a further digital value in response to each further request.

    PRINTHEAD LIQUID DELIVERY AND GAS REMOVAL
    8.
    发明申请
    PRINTHEAD LIQUID DELIVERY AND GAS REMOVAL 审中-公开
    打印头液体输送和气体清除

    公开(公告)号：WO2017074314A1

    公开(公告)日：2017-05-04

    申请号：PCT/US2015/057585

    申请日：2015-10-27

    Applicant: HEWLETT PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： OTIS, JR., David Ridgway ,  CHOY, Si-lam Julius ,  SWIER, Kevin Edward ,  OLSEN, David N.

    IPC: B41J2/175 ,  B41J2/19

    CPC classification number: B41J2/175 ,  B41J2/19

    Abstract: In one example, a liquid delivery and gas removal system for a printhead. The system includes a pump to provide a liquid at a positive pressure. The system also includes a filter fluidically coupled to the pump to receive the pressurized liquid at an upstream side, at a first pressure push the liquid through the filter to a downstream side, and at a higher second pressure push gas bubbles in the liquid through the filter to the downstream side. The system further includes a vent having a gas-permeable membrane. A wet side of the membrane is fluidically coupled to the downstream side and to a printhead. A vacuum is applied to a dry side of the membrane.

    Abstract translation: 在一个示例中，用于打印头的液体输送和气体去除系统。 该系统包括一个提供正压液体的泵。 该系统还包括流体地连接到泵的过滤器，以在上游侧接收加压液体，在第一压力下将液体通过过滤器推到下游侧，并且在更高的第二压力下，通过液体推动液体中的气泡 过滤到下游侧。 该系统还包括具有透气膜的通气孔。 膜的湿侧与下游侧和打印头流体耦合。 真空施加在膜的干燥侧。

    FLUID EJECTION DIE FLUID FLOW REVERSAL
    9.
    发明申请
    FLUID EJECTION DIE FLUID FLOW REVERSAL 审中-公开

    公开(公告)号：WO2021221605A1

    公开(公告)日：2021-11-04

    申请号：PCT/US2020/030151

    申请日：2020-04-27

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

    Inventor： ANDERSON, Daryl E. ,  PRZBYLA, James R. ,  CLARK, Garrett E. ,  MARTIN, Eric T. ,  OLSEN, David N.

    IPC: B41J2/175 ,  B41J2/18

    Abstract: A fluid ejection system may include a fluid ejection die, a fluid reservoir, a fluid mover, a valve system to control flow of fluid by the fluid mover and a controller. The controller is to output first control signals to the valve system to cause a first fluid flow to be directed from the fluid reservoir and across the fluid ejection die in a first direction and is to output second control signals to the valve system, to cause a second fluid flow to be directed from the fluid reservoir and across the fluid ejection die in a second direction that is a reversal of the first direction.

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