公开(公告)号：US06520629B1

公开(公告)日：2003-02-18

申请号：US09675831

申请日：2000-09-29

申请人： Ravi Sharma ,  John A. Lebens ,  Christopher N. Delametter ,  David P. Trauernicht

发明人： Ravi Sharma ,  John A. Lebens ,  Christopher N. Delametter ,  David P. Trauernicht

IPC分类号： B41J209

CPC分类号： B41J2/105 ,  B41J2/03 ,  B41J2/09 ,  B41J2002/032 ,  B41J2202/16

摘要： An asymmetric heat-type inkjet printer includes an inkjet printhead having at least one nozzle for continuously ejecting a stream of ink that forms a train of ink droplets, a heater disposed adjacent to the nozzle for selectively thermally deflecting the droplet forming stream of ink either toward a printing medium, or an ink gutter that captures and recirculates the ink. To increase the angle of deflection that the intermittently operated heater imposes on the droplet-forming stream of ink, a steering fluid assembly is provided in communication with the inkjet nozzle for co-extruding a thin film of fluid around the ink which has a higher volatility and a lower thermal diffusivity than the liquid forming the ink. When the ink is water based, the steering fluid may be, for example, polyethylene oxide based surfactant, or isopropanol. The invention allows water-based ink droplets in such printers to be deflected at greater angles in response to heat pulses generated by the heater, thereby enhancing printing accuracy and speed.

摘要翻译： 不对称热式喷墨打印机包括具有至少一个喷嘴的喷墨打印头，用于连续喷射形成墨滴系列的墨水流;邻近喷嘴设置的加热器，用于选择性地将墨滴形成墨水热偏转到 打印介质或捕获并再循环墨水的墨槽。 为了增加间歇操作的加热器对墨滴形成流的偏转角度，提供了一种与喷墨喷嘴连通的转向流体组件，用于将具有较高挥发性的油墨周围的薄膜流体共挤出 并且比形成油墨的液体具有更低的热扩散率。 当油墨是水基时，转向流体可以是例如聚环氧乙烷基表面活性剂或异丙醇。 本发明允许这种打印机中的水基墨滴响应于加热器产生的加热脉冲以更大的角度偏转，从而提高打印精度和速度。

公开(公告)号：US06796641B2

公开(公告)日：2004-09-28

申请号：US10229357

申请日：2002-08-26

申请人： John A. Lebens ,  Christopher N. Delametter ,  David P. Trauernicht

发明人： John A. Lebens ,  Christopher N. Delametter ,  David P. Trauernicht

IPC分类号： B41J2109

CPC分类号： B41J2/03 ,  B41J2/09 ,  B41J2/105 ,  B41J2002/032 ,  B41J2202/16 ,  B41J2202/22

摘要： A continuous inkjet printer in which a continuous ink stream is deflected at the printhead nozzle bore without the need for charged deflection plates or tunnels. The printhead includes a primary ink delivery channel which delivers a primary flow of pressurized ink through an ink staging chamber to the nozzle bore to create an undeflected ink stream from the printhead. A secondary ink delivery channel adjacent to the primary channel is controlled by a thermally actuated valve to selectively create a lateral flow of pressurized ink into the primary flow thereby causing the emitted ink stream to deflect in a direction opposite to the direction from which the secondary ink stream impinges the primary ink stream in the ink staging chamber. A method of fabricating the printhead includes layering of the thermally actuated valve over the secondary ink delivery channel formed in a silicon substrate and creating the ink staging chamber over the delivery channels with sacrificial material which is later removed through the nozzle bore etched into the chamber wall formed over the sacrificial material.

摘要翻译： 连续喷墨打印机，其中连续墨水流在打印头喷嘴孔处偏转，而不需要带电偏转板或隧道。 打印头包括主要的墨水输送通道，其将加压油墨的一次流通过墨水分级室输送到喷嘴孔，以产生来自打印头的未偏转的墨水流。 邻近主要通道的次要油墨输送通道由热致动阀控制，以选择性地产生加压油墨的侧向流入主流，从而使排出的油墨流沿与二次油墨的方向相反的方向偏转 液流撞击墨水分级室中的主墨水流。 制造打印头的方法包括在形成在硅衬底中的辅助墨水输送通道上层叠热致动阀，并且通过牺牲材料在输送通道上产生墨水分级室，该牺牲材料随后通过蚀刻到腔壁中的喷嘴孔去除 形成在牺牲材料上。

公开(公告)号：US06695440B2

公开(公告)日：2004-02-24

申请号：US10229207

申请日：2002-08-26

申请人： John A. Lebens ,  Christopher N. Delametter ,  David P. Trauernicht

发明人： John A. Lebens ,  Christopher N. Delametter ,  David P. Trauernicht

IPC分类号： B41J2095

CPC分类号： B41J2/03 ,  B41J2/09 ,  B41J2/105 ,  B41J2002/032 ,  B41J2202/16 ,  B41J2202/22

摘要： A continuous inkjet printer in which a continuous ink stream is deflected at the printhead nozzle bore without the need for charged deflection plates or tunnels. The printhead includes a primary ink delivery channel which delivers a primary flow of pressurized ink through an ink staging chamber to the nozzle bore to create an undeflected ink stream from the printhead. A secondary ink delivery channel adjacent to the primary channel is controlled by a thermally actuated valve to selectively create a lateral flow of pressurized ink into the primary flow thereby causing the emitted ink stream to deflect in a direction opposite to the direction from which the secondary ink stream impinges the primary ink stream in the ink staging chamber. A method of fabricating the printhead includes layering of the thermally actuated valve over the secondary ink delivery channel formed in a silicon substrate and creating the ink staging chamber over the delivery channels with sacrificial material which is later removed through the nozzle bore etched into the chamber wall formed over the sacrificial material.

摘要翻译： 连续喷墨打印机，其中连续墨水流在打印头喷嘴孔处偏转，而不需要带电偏转板或隧道。 打印头包括主要的墨水输送通道，其将加压油墨的一次流通过墨水分级室输送到喷嘴孔，以产生来自打印头的未偏转的墨水流。 邻近主要通道的次要油墨输送通道由热致动阀控制，以选择性地产生加压油墨的侧向流入主流，从而使排出的油墨流沿与二次油墨的方向相反的方向偏转 液流撞击墨水分级室中的主墨水流。 制造打印头的方法包括在形成在硅衬底中的辅助墨水输送通道上层叠热致动阀，并且通过牺牲材料在输送通道上产生墨水分级室，该牺牲材料随后通过蚀刻到腔壁中的喷嘴孔去除 形成在牺牲材料上。

公开(公告)号：US06588890B1

公开(公告)日：2003-07-08

申请号：US10023129

申请日：2001-12-17

申请人： Edward P. Furlani ,  Christopher N. Delametter ,  John A. Lebens ,  Ravi Sharma ,  James M. Chwalek

发明人： Edward P. Furlani ,  Christopher N. Delametter ,  John A. Lebens ,  Ravi Sharma ,  James M. Chwalek

IPC分类号： B41J2105

CPC分类号： B41J2/105 ,  B41J2/03 ,  B41J2/09 ,  B41J2202/16

摘要： Apparatus for controlling ink in a continuous inkjet printer in which a continuous stream of ink is emitted from a nozzle bore, including a reservoir containing pressurized ink; a rigid nozzle element defining an ink staging chamber and defining a nozzle bore in communication with the ink staging chamber arranged so as to establish a continuous flow of ink in a ink stream; ink delivery structure intermediate the reservoir and the ink staging chamber for communicating ink between the reservoir and defining first and second spaced ink delivery channels; and heat responsive bimorph flexible elements disposed in the first and second spaced ink delivery channels to control the flow of ink to the nozzle and thereby change the direction of ink from the nozzle.

摘要翻译： 用于控制连续喷墨打印机中的油墨的装置，其中连续的墨水流从喷嘴孔排出，包括含有加压油墨的储存器; 限定墨水分级室并限定与所述墨水分级室连通的喷嘴孔的刚性喷嘴元件，所述喷墨孔布置成在油墨流中建立连续的墨水流; 墨水输送结构位于储存器和墨水分级室之间，用于在储存器之间连通墨水并限定第一和第二间隔的墨水输送通道; 以及设置在第一和第二间隔油墨输送通道中的热响应双压电晶片柔性元件，以控制到喷嘴的油墨流动，从而改变来自喷嘴的油墨的方向。

公开(公告)号：US08540349B2

公开(公告)日：2013-09-24

申请号：US12143880

申请日：2008-06-23

申请人： John A. Lebens ,  Christopher N. Delametter ,  David P. Trauernicht ,  Emmanuel K. Dokyi ,  Weibin Zhang

发明人： John A. Lebens ,  Christopher N. Delametter ,  David P. Trauernicht ,  Emmanuel K. Dokyi ,  Weibin Zhang

IPC分类号： B41J2/05

CPC分类号： B41J2/14129 ,  B41J2/1412 ,  B41J2/1603 ,  B41J2/1628 ,  B41J2/1639 ,  B41J2/1642

摘要： A liquid ejector includes a substrate, a heating element, a dielectric material layer, and a chamber. The substrate includes a first surface. The heating element is located over the first surface of the substrate such that a cavity exists between the heating element and the first surface of the substrate. The dielectric material layer is located between the heating element and the cavity such that the cavity is laterally bounded by the dielectric material layer. The chamber, including a nozzle, is located over the heating element. The chamber is shaped to receive a liquid with the cavity being isolated from the liquid.

摘要翻译： 液体喷射器包括基板，加热元件，电介质材料层和腔室。 基板包括第一表面。 加热元件位于基板的第一表面之上，使得在加热元件和基板的第一表面之间存在空腔。 介电材料层位于加热元件和空腔之间，使得腔体被电介质材料层横向界定。 包括喷嘴的腔室位于加热元件上方。 腔室被成形为接收液体，空腔与液体隔离。

公开(公告)号：US06474795B1

公开(公告)日：2002-11-05

申请号：US09468987

申请日：1999-12-21

申请人： John A. Lebens ,  Christopher N. Delametter ,  David P. Trauernicht

发明人： John A. Lebens ,  Christopher N. Delametter ,  David P. Trauernicht

IPC分类号： B41J2105

CPC分类号： B41J2/03 ,  B41J2/09 ,  B41J2/105 ,  B41J2002/032 ,  B41J2202/16 ,  B41J2202/22

摘要： A continuous inkjet printer in which a continuous ink stream is deflected at the printhead nozzle bore without the need for charged deflection plates or tunnels. The printhead includes a primary ink delivery channel which delivers a primary flow of pressurized ink through an ink staging chamber to the nozzle bore to create an undeflected ink stream from the printhead. A secondary ink delivery channel adjacent to the primary channel is controlled by a thermally actuated valve to selectively create a lateral flow of pressurized ink into the primary flow thereby causing the emitted ink stream to deflect in a direction opposite to the direction from which the secondary ink stream impinges the primary ink stream in the ink staging chamber. A method of fabricating the printhead includes layering of the thermally actuated valve over the secondary ink delivery channel formed in a silicon substrate and creating the ink staging chamber over the delivery channels with sacrificial material which is later removed through the nozzle bore etched into the chamber wall formed over the sacrificial material.

摘要翻译： 连续喷墨打印机，其中连续墨水流在打印头喷嘴孔处偏转，而不需要带电偏转板或隧道。 打印头包括主要的墨水输送通道，其将加压油墨的一次流通过墨水分级室输送到喷嘴孔，以产生来自打印头的未偏转的墨水流。 邻近主要通道的次要油墨输送通道由热致动阀控制，以选择性地产生加压油墨的侧向流入主流，从而使排出的油墨流沿与二次油墨的方向相反的方向偏转 液流撞击墨水分级室中的主墨水流。 制造打印头的方法包括在形成在硅衬底中的辅助墨水输送通道上层叠热致动阀，并且通过牺牲材料在输送通道上产生墨水分级室，该牺牲材料随后通过蚀刻到腔壁中的喷嘴孔去除 形成在牺牲材料上。

公开(公告)号：US06817702B2

公开(公告)日：2004-11-16

申请号：US10293982

申请日：2002-11-13

申请人： Christopher N. Delametter ,  Edward P. Furlani ,  John A. Lebens ,  David P. Trauernicht ,  Antonio Cabal ,  David S. Ross ,  Stephen F. Pond

发明人： Christopher N. Delametter ,  Edward P. Furlani ,  John A. Lebens ,  David P. Trauernicht ,  Antonio Cabal ,  David S. Ross ,  Stephen F. Pond

IPC分类号： B41J205

CPC分类号： B41J2/14427 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1648

摘要： An apparatus for and method of operating a thermal actuator for a micromechanical device, especially a liquid drop emitter such as an ink jet printhead, is disclosed. The disclosed thermal actuator comprises a base element and a cantilevered element including a thermo-mechanical bender portion extending from the base element to a free end tip. The thermo-mechanical bender portion includes a barrier layer constructed of a dielectric material having low thermal conductivity, a first deflector layer constructed of a first electrically resistive material having a large coefficient of thermal expansion, and a second deflector layer constructed of a second electrically resistive material having a large coefficient of thermal expansion wherein the barrier layer is bonded between the first and second deflector layers. The thermo-mechanical bender portion further has a base end and base end width, wb, adjacent the base element, and a free end and free end width, wf, adjacent the free end tip, wherein the base end width is substantially greater than the free end width. A first heater resistor is formed in the first deflector layer and adapted to apply heat energy having a first spatial thermal pattern which results in a first deflector layer base end temperature increase, &Dgr;T1b, that is greater than a first deflector layer free end temperature increase, &Dgr;T1f. A second heater resistor is formed in the second deflector layer and adapted to apply heat energy having a second spatial thermal pattern which results in a second deflector layer base end temperature increase, &Dgr;T2b that is greater than a second deflector layer free end temperature increase, &Dgr;T2f. Application of an electrical pulse to either the first or second heater resistors causes deflection of the cantilevered element, followed by restoration of the cantilevered element to an initial position as heat diffuses through the barrier layer and the cantilevered element reaches a uniform temperature. For liquid drop emitter embodiments, the thermal actuator resides in a liquid-filled chamber that includes a nozzle for ejecting liquid. Application of electrical pulses to the heater resistors is used to adjust the characteristics of liquid drop emission. The barrier layer exhibits a heat transfer time constant &tgr;B. The thermal actuator is activated by a heat pulses of duration &tgr;P wherein &tgr;P

公开(公告)号：US07033000B2

公开(公告)日：2006-04-25

申请号：US10953401

申请日：2004-09-29

申请人： Christopher N. Delametter ,  Edward P. Furlani ,  John A. Lebens ,  David P. Trauernicht ,  Antonio Cabal ,  David S. Ross ,  Stephen F. Pond

发明人： Christopher N. Delametter ,  Edward P. Furlani ,  John A. Lebens ,  David P. Trauernicht ,  Antonio Cabal ,  David S. Ross ,  Stephen F. Pond

IPC分类号： B41J2/05 ,  B41J2/04

CPC分类号： B41J2/14427 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1648

摘要： An apparatus for and method of operating a thermal actuator for a micromechanical device, especially a liquid drop emitter for use in an ink jet printhead, is disclosed. The disclosed thermal actuator includes a base element and a cantilevered element including a thermo-mechanical bender portion extending from the base element to a free end tip. The thermo-mechanical bender portion includes a barrier layer constructed of a dielectric material having low thermal conductivity, a first deflector layer constructed of a first electrically resistive material having a large coefficient of thermal expansion, and a second deflector layer constructed of a second electrically resistive material having a large coefficient of thermal expansion wherein the barrier layer is bonded between the first and second deflector layers.

摘要翻译： 公开了一种操作用于微机械装置的热致动器的装置和方法，特别是用于喷墨打印头的液滴发射器。 所公开的热致动器包括基部元件和悬臂元件，其包括从基部元件延伸到自由端尖端的热机械弯曲部分。 热机械弯曲部分包括由具有低热导率的介电材料构成的阻挡层，由具有大的热膨胀系数的第一电阻材料构成的第一偏转器层和由第二电阻构成的第二偏转器层 具有大的热膨胀系数的材料，其中阻挡层结合在第一和第二偏转器层之间。

公开(公告)号：US07029101B2

公开(公告)日：2006-04-18

申请号：US10953398

申请日：2004-09-29

申请人： Christopher N. Delametter ,  Edward P. Furlani ,  John A. Lebens ,  David P. Trauernicht ,  Antonio Cabal ,  David S. Ross ,  Stephen F. Pond

发明人： Christopher N. Delametter ,  Edward P. Furlani ,  John A. Lebens ,  David P. Trauernicht ,  Antonio Cabal ,  David S. Ross ,  Stephen F. Pond

IPC分类号： B41J2/05 ,  B41J2/04

CPC分类号： B41J2/14427 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1648

摘要： An apparatus for and method of operating a thermal actuator for a micromechanical device, especially a liquid drop emitter for use in an ink jet printhead, is disclosed. The disclosed thermal actuator includes a base element and a cantilevered element including a thermo-mechanical bender portion extending from the base element to a free end tip. The thermo-mechanical bender portion includes a barrier layer constructed of a dielectric material having low thermal conductivity, a first deflector layer constructed of a first electrically resistive material having a large coefficient of thermal expansion, and a second deflector layer constructed of a second electrically resistive material having a large coefficient of thermal expansion wherein the baffler layer is bonded between the first and second deflector layers.

摘要翻译： 公开了一种操作用于微机械装置的热致动器的装置和方法，特别是用于喷墨打印头的液滴发射器。 所公开的热致动器包括基部元件和悬臂元件，其包括从基部元件延伸到自由端尖端的热机械弯曲部分。 热机械弯曲部分包括由具有低热导率的介电材料构成的阻挡层，由具有大的热膨胀系数的第一电阻材料构成的第一偏转器层和由第二电阻构成的第二偏转器层 具有大的热膨胀系数的材料，其中挡板层结合在第一和第二偏转器层之间。

公开(公告)号：US06824249B2

公开(公告)日：2004-11-30

申请号：US10227079

申请日：2002-08-23

申请人： Christopher N. Delametter ,  David P. Trauernicht ,  John A. Lebens ,  Edward P. Furlani ,  Stephen F. Pond

发明人： Christopher N. Delametter ,  David P. Trauernicht ,  John A. Lebens ,  Edward P. Furlani ,  Stephen F. Pond

IPC分类号： B41J204

CPC分类号： B41J2/14427

摘要： An apparatus for a thermal actuator for a micromechanical device, especially a liquid drop emitter such as an ink jet printhead, is disclosed. The disclosed thermal actuator comprises a base element and a cantilevered element including a thermo-mechanical bending portion extending from the base element and a free end portion residing in a first position. The thermo-mechanical bending portion has a base end width, wb, adjacent the base element and a free end width, wf, adjacent the free end portion wherein the base end width is substantially greater than the free end width. The thermal actuator further comprises apparatus adapted to apply a heat pulse directly to the thermo-mechanical bending portion causing the deflection of the free end portion of the cantilevered element to a second position. The width of the thermo-mechanical bending portion may reduce substantially monotonically as a function of the distance away from the base element or in at least one step reduction. The apparatus adapted to apply a heat pulse may comprise a thin film resistor. Alternatively, the thermo-mechanical bending portion may comprise a layer of electrically resistive material having a heater resistor formed therein to which is applied an electrical pulse to cause rapid deflection of the free end portion and ejection of a liquid drop.