公开(公告)号：US08727471B2

公开(公告)日：2014-05-20

申请号：US13801836

申请日：2013-03-13

Applicant: FUJIFILM Corporation

Inventor： Mats G. Ottosson ,  Christoph Menzel ,  Paul A. Hoisington

IPC: B41J29/38 ,  B41J2/045

CPC classification number: B41J2/04588 ,  B41J2/14233 ,  B41J2202/12 ,  H01L41/047

Abstract: Methods, systems, and apparatus for drive a pumping chamber of a fluid ejection system are disclosed. In one implementation, the actuator for drive the pumping chamber includes a continuous piezoelectric layer between a pair of drive electrodes and a continuous reference electrode. The pair of drive electrodes includes an inner electrode and an outer electrode surrounding the inner electrode. The actuator is further coupled to a controller which, during a fluid ejection cycle, applies a negative voltage pulse differential to the outer electrode to expand the pumping chamber for a first time period, then applies another negative voltage pulse differential to the inner electrode during a second time period after the first time period to contract the pumping chamber to eject a fluid drop.

Abstract translation: 公开了用于驱动流体喷射系统的泵送室的方法，系统和装置。 在一个实施方案中，用于驱动泵送室的致动器包括在一对驱动电极和连续参考电极之间的连续压电层。 一对驱动电极包括内电极和围绕内电极的外电极。 致动器还耦合到控制器，控制器在流体喷射循环期间向外电极施加负电压脉冲差分以使泵室膨胀第一时间段，然后在第一时间期间向内电极施加另一负电压脉冲差分 在第一时间段之后的第二时间段以收缩泵送室以喷射液滴。

公开(公告)号：US20140043404A1

公开(公告)日：2014-02-13

申请号：US14057180

申请日：2013-10-18

Applicant: FUJIFILM Corporation

Inventor： Paul A. Hoisington ,  Christoph Menzel ,  Mats G. Ottosson ,  Kevin von Essen

IPC: B41J2/175

CPC classification number: B41J2/175 ,  B41J2/14233 ,  B41J2002/14419 ,  B41J2002/14459 ,  B41J2202/12

Abstract: A fluid ejection apparatus includes a fluid distribution layer between a fluid manifold and a substrate. The fluid distribution layer includes fluid supply channels and fluid return channels. Each fluid supply channel receives fluid from the fluid supply chamber and circulates a fraction of the received fluid back to the fluid return chamber through a return-side bypass. The substrate include a plurality of flow paths, each flow path includes a nozzle for ejecting fluid droplets. Each flow path receives fluid from a respective fluid supply channel, and channel un-ejected fluid into a respective fluid return channel. Each fluid return channel can collect the un-ejected fluid from one or more flow paths and a supply-side bypass, and return the collected fluid back to the fluid supply chamber.

Abstract translation: 流体喷射装置包括在流体歧管和基底之间的流体分配层。 流体分配层包括流体供应通道和流体返回通道。 每个流体供应通道从流体供应室接收流体，并通过返回侧旁路将一部分接收的流体循环回流体返回室。 基板包括多个流路，每个流路包括用于喷射流体液滴的喷嘴。 每个流动路径从相应的流体供应通道接收流体，并将未喷射的流体通道流入相应的流体返回通道。 每个流体返回通道可以从一个或多个流动路径和供给侧旁路收集未排出的流体，并将收集的流体返回到流体供应室。

公开(公告)号：US08807719B2

公开(公告)日：2014-08-19

申请号：US14057180

申请日：2013-10-18

Applicant: FUJIFILM Corporation

Inventor： Paul A. Hoisington ,  Christoph Menzel ,  Mats G. Ottosson ,  Kevin von Essen

IPC: B41J2/175

CPC classification number: B41J2/175 ,  B41J2/14233 ,  B41J2002/14419 ,  B41J2002/14459 ,  B41J2202/12

Abstract: A fluid ejection apparatus includes a fluid distribution layer between a fluid manifold and a substrate. The fluid distribution layer includes fluid supply channels and fluid return channels. Each fluid supply channel receives fluid from the fluid supply chamber and circulates a fraction of the received fluid back to the fluid return chamber through a return-side bypass. The substrate include a plurality of flow paths, each flow path includes a nozzle for ejecting fluid droplets. Each flow path receives fluid from a respective fluid supply channel, and channel un-ejected fluid into a respective fluid return channel. Each fluid return channel can collect the un-ejected fluid from one or more flow paths and a supply-side bypass, and return the collected fluid back to the fluid supply chamber.

Abstract translation: 流体喷射装置包括在流体歧管和基底之间的流体分配层。 流体分配层包括流体供应通道和流体返回通道。 每个流体供应通道从流体供应室接收流体，并通过返回侧旁路将一部分接收的流体循环回流体返回室。 基板包括多个流路，每个流路包括用于喷射流体液滴的喷嘴。 每个流动路径从相应的流体供应通道接收流体，并将未喷射的流体通道流入相应的流体返回通道。 每个流体返回通道可以从一个或多个流动路径和供给侧旁路收集未排出的流体，并将收集的流体返回到流体供应室。

公开(公告)号：US20130249987A1

公开(公告)日：2013-09-26

申请号：US13801836

申请日：2013-03-13

Applicant: FUJIFILM Corporation

Inventor： Mats G. Ottosson ,  Christoph Menzel ,  Paul A. Hoisington

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04588 ,  B41J2/14233 ,  B41J2202/12 ,  H01L41/047

Abstract: Methods, systems, and apparatus for drive a pumping chamber of a fluid ejection system are disclosed. In one implementation, the actuator for drive the pumping chamber includes a continuous piezoelectric layer between a pair of drive electrodes and a continuous reference electrode. The pair of drive electrodes includes an inner electrode and an outer electrode surrounding the inner electrode. The actuator is further coupled to a controller which, during a fluid ejection cycle, applies a negative voltage pulse differential to the outer electrode to expand the pumping chamber for a first time period, then applies another negative voltage pulse differential to the inner electrode during a second time period after the first time period to contract the pumping chamber to eject a fluid drop.

Abstract translation: 公开了用于驱动流体喷射系统的泵送室的方法，系统和装置。 在一个实施方案中，用于驱动泵送室的致动器包括在一对驱动电极和连续参考电极之间的连续压电层。 一对驱动电极包括内电极和围绕内电极的外电极。 致动器还耦合到控制器，控制器在流体喷射循环期间向外电极施加负电压脉冲差分以使泵室膨胀第一时间段，然后在第一时间期间向内电极施加另一负电压脉冲差分 在第一时间段之后的第二时间段以收缩泵送室以喷射液滴。

公开(公告)号：US09067228B2

公开(公告)日：2015-06-30

申请号：US13891827

申请日：2013-05-10

Applicant: FUJIFILM Corporation

Inventor： Christoph Menzel ,  Andreas Bibl ,  Paul A. Hoisington

IPC: B05B17/06 ,  B41J2/14

CPC classification number: B05B17/0653 ,  B41J2/14233 ,  B41J2002/14491 ,  B41J2202/03

Abstract: A fluid ejection apparatus includes a substrate having a plurality of fluid passages for fluid flow and a plurality of nozzles fluidically connected to the fluid passages, a plurality of actuators positioned on top of the substrate to cause fluid in the plurality of fluid passages to be ejected from the plurality of nozzles, and a protective layer formed over at least a portion of the plurality of actuators, the protective layer having an intrinsic permeability to moisture less than 2.5×10−3 g/m·day.

Abstract translation: 流体喷射装置包括具有多个用于流体流动的流体通道的基板和与流体通道流体连接的多个喷嘴;位于基板顶部的多个致动器，以使多个流体通道中的流体被弹出 从所述多个喷嘴形成的保护层和形成在所述多个致动器的至少一部分上的保护层，所述保护层对于小于2.5×10-3g / m·天的水分的固有渗透性。