Valves for fluid ejection devices
    11.
    发明授权

    公开(公告)号:US10569561B2

    公开(公告)日:2020-02-25

    申请号:US16074913

    申请日:2016-10-27

    Abstract: In some examples, a valve assembly for a fluid ejection device includes a plurality of valves to control fluid supply from a plurality of fluid sources to the fluid ejection device, each respective valve of the plurality of valves actuatable between a first valve position to provide fluid communication through a first fluid path between a first fluid source of the plurality of fluid sources and the fluid ejection device, and a second valve position to provide fluid communication through a second fluid path between a second fluid source of the plurality of fluid sources and the fluid ejection device. A common actuator, when energized, controls movement of the plurality of valves. Each respective biasing mechanism of a plurality of biasing mechanisms is to maintain the respective valve at each of the first valve position and the second valve position without energizing the common actuator.

    Purging manifolds
    12.
    发明授权

    公开(公告)号:US11597206B2

    公开(公告)日:2023-03-07

    申请号:US16500416

    申请日:2018-03-12

    Abstract: In some examples a printing system includes purging manifolds. The printing system includes a fluid ejection device to dispense a fluid and a first reservoir to house a fluid. The system further includes a purging manifold to fluidically couple to the fluid ejection device, and the purging manifold to fluidically couple to the first reservoir. The purging manifold includes a second reservoir. The purging manifold further includes a supply port; a fluid inlet port; and a purging outlet port. The purging outlet port is disposed above the supply port to convey fluid to the first reservoir. The printing system also includes a fluid interface connector to fluidically connect to the supply port and fluidically connect to the fluid ejection device.

    Fluid extraction using fill pump activation

    公开(公告)号:US11312151B2

    公开(公告)日:2022-04-26

    申请号:US17276930

    申请日:2018-12-04

    Abstract: In one example in accordance with the present disclosure, a fluid extraction system is described. The fluid extraction system includes an interface to fluidically and electrically couple a removable extraction reservoir to a printing device. A supply line of the fluid extraction system transports fluid from the interface to a reservoir of the printing device. A return line of the fluid extraction system is coupled to the reservoir and supply line and transports fluid from the reservoir to the interface. The fluid extraction system also includes a switch to, responsive to removal of the removable extraction reservoir from the printing device, activate a fill pump to draw fluid through the supply line away from the interface.

    EXTRACTION RESERVOIR-TRIGGERED FLUID EXTRACTION

    公开(公告)号:US20220032634A1

    公开(公告)日:2022-02-03

    申请号:US17276950

    申请日:2018-12-04

    Abstract: In one example in accordance with the present disclosure, a fluid extraction system is described. The fluid extraction system includes an interface to fluidically and electrically couple a removable extraction reservoir to a printing device. A return line of the fluid extraction system is to connect the interface and a reservoir of the printing device. The fluid extraction system includes a switch to 1) responsive to attachment of the removable extraction reservoir to the printing device, open the return line to direct fluid form the reservoir to the interface and 2) responsive to removal of the removable extraction reservoir from the printing device, close the return line.

    ENGAGEABLE FLUID INTERFACE MEMBERS AND CONNECTORS

    公开(公告)号:US20200215835A1

    公开(公告)日:2020-07-09

    申请号:US16500413

    申请日:2017-09-28

    Abstract: In some examples, a fluid ejection assembly is removably mountable in a system, and includes a fluid ejection device, and a removable frame on which the fluid ejection device is mounted. The removable frame includes a plurality of fluid interface members that share a common design to releasably engage with a plurality of fluid interface connectors together as the removable frame is brought into engagement with a support structure in the system and on which the plurality of fluid interface connectors are mounted. Engagement of a first fluid interface member with a first fluid interface connector establishes a gas path through the first fluid interface member and the first fluid interface connector, and engagement of a second fluid interface member with a second fluid interface connector establishes a liquid path through the second fluid interface member and the second fluid interface connector, the liquid path to deliver a liquid to the fluid ejection device.

    PRINTING REFILL WITH RESERVE TANKS
    20.
    发明申请

    公开(公告)号:US20230008472A1

    公开(公告)日:2023-01-12

    申请号:US17782860

    申请日:2019-12-09

    Abstract: In one example in accordance with the present disclosure, a print fluid refill system is described. The print fluid refill system includes a reservoir to hold a volume of print fluid to be supplied to a printhead. The print fluid refill system also includes a pump to 1 ) draw print fluid from the reservoir via a reservoir line and 2) transport print fluid to a reserve tank via a reserve line. The print fluid refill system also includes the reserve tank to, during refill of the reservoir, supply print fluid to a printhead via a printhead line. The reserve tank supplies print fluid to the printhead when fluid is passed to the reservoir via a return line.

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