LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS

    公开(公告)号:US20230278338A1

    公开(公告)日:2023-09-07

    申请号:US18114988

    申请日:2023-02-28

    IPC分类号: B41J2/14 B41J29/377

    摘要: A liquid discharge head includes a nozzle plate having a nozzle from which a liquid is discharged, a housing holding the nozzle plate, a valve that opens and closes the nozzle, an expandable driver disposed inside the housing, and a restraint. The expandable driver has a first end that supports a rear end of the valve and a second end fixed to the housing. The expendable driver moves the valve in a longitudinal direction to push a leading end of the valve against the nozzle to close the nozzle. The restraint positions the second end with respect to the housing in the longitudinal direction. A difference between ΔL1 and ΔL2 is equal to or less than a predetermined value, where ΔL1 represents a thermal deformation amount of a first length due to temperature change, and ΔL2 represents a thermal deformation amount of a second length due to the temperature change.

    LIQUID DISCHARGER AND LIQUID STIRRING METHOD

    公开(公告)号:US20170341407A1

    公开(公告)日:2017-11-30

    申请号:US15584094

    申请日:2017-05-02

    IPC分类号: B41J2/175

    摘要: A liquid discharger includes a head including nozzles to discharge liquid from the nozzles, a detachable first container attached to the liquid discharger to accommodate the liquid, a second container connected to the head to accommodate the liquid to be supplied to the head, a supply channel to connect the first container and the second container, an irreversible pump connected to the second container, and a controller to control the irreversible pump to pressurize and decompress the second container to reciprocally move the liquid between the first detachable container and the second container via the supply channel.

    DISCHARGE HEAD, DISCHARGE UNIT, AND LIQUID DISCHARGE APPARATUS

    公开(公告)号:US20220379609A1

    公开(公告)日:2022-12-01

    申请号:US17791553

    申请日:2021-03-16

    IPC分类号: B41J2/14

    摘要: A discharge head includes a nozzle, a valve body, a piezoelectric element, and a first biasing unit. The nozzle is configured to discharge liquid. The valve body is configured to open and close the nozzle. The piezoelectric element is configured to drive the valve body. The first biasing unit is disposed in parallel with the piezoelectric element. The piezoelectric element is configured to drive the valve body in a direction to open the nozzle when a voltage is applied to the piezoelectric element. The first biasing unit is configured to bias the valve body in the direction to open the nozzle.