Single jet recirculation in an inkjet print head

    公开(公告)号:US09694582B1

    公开(公告)日:2017-07-04

    申请号:US15090335

    申请日:2016-04-04

    Abstract: An inkjet print head including a plurality of single jet elements. Each single jet element includes an aperture configured to eject ink during a jetting event, a channel for receiving ink. The inkjet print head also includes a first manifold structured to supply ink to the channel; and a plurality of recirculation paths. Each recirculation path configured to receive ink during the jetting event and a non-jetting event. Each recirculation path includes a recirculation channel connected to the channel for receiving ink, the recirculation channel is formed by half-etching one of the steel plates that forms part of the each of the single jet elements and the recirculation paths, and a second manifold structured to receive ink from the recirculation channel. The ink flows from the first manifold to the second manifold through each of the plurality of single jet elements and the recirculation paths during a non-jetting event.

    METHOD OF SENSING DEGRADATION OF PIEZOELECTRIC ACTUATORS
    3.
    发明申请
    METHOD OF SENSING DEGRADATION OF PIEZOELECTRIC ACTUATORS 有权
    压电致动器传感降解方法

    公开(公告)号:US20160082720A1

    公开(公告)日:2016-03-24

    申请号:US14495596

    申请日:2014-09-24

    CPC classification number: B41J2/04506 B41J2/0451 B41J2/04581 B41J2002/14354

    Abstract: Systems and methods for sensing degradation of a piezoelectric actuator in a print head. One or more electrical pulses may be transmitted to the piezoelectric actuator that cause the piezoelectric actuator to bend, thereby creating a pressure wave. The pressure wave may be sensed and converted into an electrical signal. The electrical signal may be compared to a reference signal.

    Abstract translation: 用于感测打印头中的压电致动器的劣化的系统和方法。 可以将一个或多个电脉冲传输到压电致动器,使得压电致动器弯曲,从而产生压力波。 可以感测压力波并将其转换成电信号。 电信号可以与参考信号进行比较。

    SINGLE JET FLUIDIC DESIGN FOR HIGH PACKING DENSITY IN INKJET PRINT HEADS
    4.
    发明申请
    SINGLE JET FLUIDIC DESIGN FOR HIGH PACKING DENSITY IN INKJET PRINT HEADS 有权
    喷墨打印头高包装密度的单流喷墨设计

    公开(公告)号:US20150151539A1

    公开(公告)日:2015-06-04

    申请号:US14095127

    申请日:2013-12-03

    CPC classification number: B41J2/14233

    Abstract: A jet stack has a set of plates forming an array of body chambers, the set of plates including a nozzle plate having an array of jets wherein each jet corresponds to a body chamber, each body chamber having an inlet to allow fluid to flow into the body chamber and an outlet to allow fluid to flow out of the body chamber, the outlet fluidically coupled to a jet in the array of jets, wherein the inlet and outlets are concentric.

    Abstract translation: 喷射堆叠具有形成身体腔阵列的一组板,该组板包括具有喷射阵列的喷嘴板,其中每个喷射对应于主体腔,每个主体腔具有允许流体流入 身体腔室和出口以允许流体从身体腔室流出,出口流体地联接到射流阵列中的射流,其中入口和出口是同心的。

    ELECTRICAL INTERCONNECT USING EMBOSSED CONTACTS ON A FLEX CIRCUIT
    5.
    发明申请
    ELECTRICAL INTERCONNECT USING EMBOSSED CONTACTS ON A FLEX CIRCUIT 审中-公开
    在柔性电路上使用嵌入式触点的电气互连

    公开(公告)号:US20140090248A1

    公开(公告)日:2014-04-03

    申请号:US14098122

    申请日:2013-12-05

    Abstract: A method of manufacturing a print head includes forming a jet stack having an array of jets, arranging an array of transducers on the jet stack such that each transducer in the array of transducers corresponds to each jet in the array of jets, embossing a flexible circuit substrate having contact pads such that the contact pads extend out of a plane of the flexible circuit substrate, and arranging the flexible circuit substrate such that the contact pads electrically connect to at least some of the transducers in the array of transducers.

    Abstract translation: 制造打印头的方法包括形成具有射流阵列的喷射叠层,在喷射叠层上布置换能器阵列,使得换能器阵列中的每个换能器对应于射流阵列中的每个射流,压印柔性电路 衬底具有接触焊盘,使得接触垫延伸出柔性电路衬底的平面,并且布置柔性电路衬底,使得接触垫电连接到换能器阵列中的至少一些换能器。

    Method of sensing degradation of piezoelectric actuators
    7.
    发明授权
    Method of sensing degradation of piezoelectric actuators 有权
    感应压电致动器退化的方法

    公开(公告)号:US09457560B2

    公开(公告)日:2016-10-04

    申请号:US14495596

    申请日:2014-09-24

    CPC classification number: B41J2/04506 B41J2/0451 B41J2/04581 B41J2002/14354

    Abstract: Systems and methods for sensing degradation of a piezoelectric actuator in a print head. One or more electrical pulses may be transmitted to the piezoelectric actuator that cause the piezoelectric actuator to bend, thereby creating a pressure wave. The pressure wave may be sensed and converted into an electrical signal. The electrical signal may be compared to a reference signal.

    Abstract translation: 用于感测打印头中的压电致动器的劣化的系统和方法。 可以将一个或多个电脉冲传输到压电致动器,使得压电致动器弯曲,从而产生压力波。 可以感测压力波并将其转换成电信号。 电信号可以与参考信号进行比较。

    Single jet fluidic design for high packing density in inkjet print heads
    8.
    发明授权
    Single jet fluidic design for high packing density in inkjet print heads 有权
    单喷射流体设计用于喷墨打印头中的高填充密度

    公开(公告)号:US09242462B2

    公开(公告)日:2016-01-26

    申请号:US14095127

    申请日:2013-12-03

    CPC classification number: B41J2/14233

    Abstract: A jet stack has a set of plates forming an array of body chambers, the set of plates including a nozzle plate having an array of jets wherein each jet corresponds to a body chamber, each body chamber having an inlet to allow fluid to flow into the body chamber and an outlet to allow fluid to flow out of the body chamber, the outlet fluidically coupled to a jet in the array of jets, wherein the inlet and outlets are concentric.

    Abstract translation: 喷射堆叠具有形成身体腔阵列的一组板,该组板包括具有喷射阵列的喷嘴板,其中每个喷射对应于主体腔,每个主体腔具有允许流体流入 身体腔室和出口以允许流体从身体腔室流出,出口流体地联接到射流阵列中的射流,其中入口和出口是同心的。

    Method for laser drilling fluid ports in multiple layers
    9.
    发明授权
    Method for laser drilling fluid ports in multiple layers 有权
    多层激光钻井液端口的方法

    公开(公告)号:US08662641B2

    公开(公告)日:2014-03-04

    申请号:US13741575

    申请日:2013-01-15

    Abstract: A method includes attaching multiple layers to a back side of at least a portion of a fluid dispensing subassembly having at least one inlet port to form a fluid dispensing assembly, aligning a laser to a region of the fluid dispensing assembly, the region corresponding to the inlet port, and forming at least one hole in the region using a laser, the hole completing a path through the layers to the inlet port. A fluid dispensing assembly has a fluid dispensing subassembly having at least one inlet port, a fluid manifold having at least one outlet, at least two layers between the fluid dispensing subassembly and the manifold, and a fluid path in the at least two layers between the outlet and the inlet port, the fluid path having smooth walls and substantially uniform width.

    Abstract translation: 一种方法包括将多层附接到具有至少一个入口端口的流体分配子组件的至少一部分的后侧,以形成流体分配组件,将激光对准流体分配组件的区域,对应于 并且使用激光在所述区域中形成至少一个孔,所述孔完成穿过所述层到所述入口的路径。 流体分配组件具有流体分配子组件,其具有至少一个入口端口,具有至少一个出口的流体歧管,流体分配子组件和歧管之间的至少两层,以及位于流体分配组件之间的至少两层中的流体路径 出口和入口,流体路径具有光滑的壁和基本均匀的宽度。

    Fluid design for recirculation within high packing density inkjet print heads

    公开(公告)号:US10214023B1

    公开(公告)日:2019-02-26

    申请号:US15690579

    申请日:2017-08-30

    Abstract: A print head has an ink source to supply and receive ink, a first channel to receive ink from the ink source, a second channel to return ink to the ink source, and a manifold structure connected to the two channels to receive ink from the first channel and return ink to the second channel. A method of operating a print head includes providing ink from an ink source at a first pressure through a first channel, routing the ink through an inlet port of at least one single jet, moving the ink through the single jet to an outlet port of the single jet, routing the ink from the outlet port of the single jet, directing the ink to a second channel, and returning ink through the second channel to the ink source at a second pressure.

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