-
公开(公告)号：US20120268513A1
公开(公告)日：2012-10-25
申请号：US13089542
申请日：2011-04-19
CPC分类号： B41J2/14427 , B41J2/14201 , B41J2/14282 , B41J2/14314
摘要： A method of ejecting a drop of fluid includes providing a fluid ejector. The fluid ejector includes a substrate, a MEMS transducing member, a compliant membrane, walls, and a nozzle. The substrate includes a cavity and a fluidic feed. A first portion of the MEMS transducing member is anchored to the substrate. A second portion of the MEMS transducing member extends over at least a portion of the cavity and is free to move relative to the cavity. The compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane covers the MEMS transducing member, A second portion of the compliant membrane being anchored to the substrate. Walls define a chamber that is fluidically connected to the fluidic feed. At least the second portion of the MEMS transducing member is enclosed within the chamber. A quantity of fluid is supplied to the chamber through the fluidic feed. An electrical pulse is applied to the MEMS transducing member to eject a drop of fluid through the nozzle.
摘要翻译： 喷射液滴的方法包括提供流体喷射器。 流体喷射器包括基板，MEMS转换构件，柔性膜，壁和喷嘴。 衬底包括空腔和流体进料。 MEMS转换构件的第一部分被锚定到基底。 MEMS转换构件的第二部分在空腔的至少一部分上延伸并且相对于空腔自由移动。 柔性膜定位成与MEMS换能件接触。 柔性膜的第一部分覆盖MEMS转导构件。柔性膜的第二部分被锚固到基底上。 壁限定了流体连接到流体进料的室。 至少MEMS转换构件的第二部分被封闭在腔室内。 通过流体进料将一定量的流体供应到腔室。 电脉冲被施加到MEMS转换构件以通过喷嘴喷射一滴液体。
-
公开(公告)号：US20120249687A1
公开(公告)日：2012-10-04
申请号：US13075312
申请日：2011-03-30
IPC分类号： B41J2/175
CPC分类号： B41J2/1753 , B41J2/1404 , B41J2002/14467
摘要： A method of printing with an inkjet printhead, the method includes providing an ink source that is fluidically connected to the printhead; filling a chamber of a drop generator of the inkjet printhead with ink; ejecting a drop of ink from the chamber of the inkjet printhead; and refilling the chamber with ink, wherein refilling the chamber comprises: providing an influx of ink into the chamber; and providing a circulating flow of ink around a periphery of the chamber.
摘要翻译： 一种使用喷墨打印头进行打印的方法，该方法包括提供流体连接到打印头的墨源; 用墨水填充喷墨打印头的液滴发生器的腔室; 从喷墨打印头的腔室喷出墨滴; 以及用油墨重新填充所述腔室，其中重新填充所述腔室包括：将墨水流入所述腔室; 以及围绕所述室的周边提供墨水的循环流动。
-
73.发明授权Continuous ink jet printer with micro-valve deflection mechanism and method of making same 失效具有微阀偏转机构的连续喷墨打印机及其制作方法公开(公告)号：US06796641B2
公开(公告)日：2004-09-28
申请号：US10229357
申请日：2002-08-26
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。
-
74.发明授权Continuous ink jet printer with micro-valve deflection mechanism and method of making same 失效具有微型阀偏转机构的连续喷墨打印机及其控制方法公开(公告)号：US06695440B2
公开(公告)日：2004-02-24
申请号：US10229207
申请日：2002-08-26
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：US06592201B2
公开(公告)日：2003-07-15
申请号：US09939868
申请日：2001-08-27
IPC分类号： B41J2165
CPC分类号： B41J2/16552 , B41J2/185
摘要： An ink jet printer is provided having a printhead defining a plurality of orifices for ejecting ink droplets. The printer comprises a source of cleaning fluid, a cleaning member having a surface partially dipped in the cleaning fluid, a first drive mechanism to move the cleaning member surface creating a flow of cleaning fluid on the surface and a second drive mechanism to advance the printhead and the cleaning member surface into a proximate and separate relation with the cleaning member surface wherein at least one of the orifices of the printhead enters the flow of cleaning fluid wherein the print head and the cleaning member surface are separated by gap of between 0.1 mm and 2.54 mm.
-
76.发明授权公开(公告)号：US06186610B1
公开(公告)日：2001-02-13
申请号：US09157455
申请日：1998-09-21
IPC分类号： B41J2938
CPC分类号： B41J2/04516 , B41J2/04551 , B41J2/04581 , B41J2/04588 , B41J2/04596 , B41J2/055 , B41J2002/14354 , B41J2202/10
摘要： An imaging apparatus capable of suppressing inadvertent ejection of a satellite ink droplet and method of assembling the apparatus. The imaging apparatus comprises a print head transducer including a pair of sidewalls defining a chamber therebetween, the channel having an ink body disposed therein. The transducer is capable of inducing a first pressure wave in the ink body in order to eject an intended ink droplet. A waveform generator is connected to the transducer for supplying a voltage waveform to the transducer, so that the transducer induces pressure waves in the ink body to eject the ink droplet. However, the first pressure wave has a reflected portion formed by the first pressure wave reflecting from the sidewalls. The reflected portion is sufficient to inadvertently eject unintended satellite ink droplets following ejection of the intended ink droplet. To avoid formation of satellite ink droplets, a sensor is in fluid communication with the ink body for sensing the reflected portion. A feedback circuit interconnects the transducer and the sensor for inducing a second pressure wave in the ink body in response to the reflected portion sensed by the sensor. The second pressure wave has an amplitude and phase damping the reflected portion of the first pressure wave in order to the suppress inadvertent ejection of the satellite ink droplets.
摘要翻译： 能够抑制卫星墨滴的意外喷射的成像装置及组装装置的方法。 该成像设备包括一个打印头转换器，该打印头换能器包括一对在其间限定腔室的侧壁，该通道具有设置在其中的墨体。 传感器能够在墨体中引入第一压力波，以便喷射预期的墨滴。 波形发生器连接到换能器以向换能器提供电压波形，使得换能器在墨体中引起压力波以喷射墨滴。 然而，第一压力波具有由从侧壁反射的第一压力波形成的反射部分。 反射部分足以在弹出预期的墨滴之后无意中弹出非预期的卫星墨滴。 为了避免形成卫星墨滴，传感器与墨体流体连通，用于感测反射部分。 反馈电路将换能器和传感器互连，以响应于由传感器感测的反射部分而在墨体中感应第二压力波。 第二压力波具有振幅和相位阻尼第一压力波的反射部分，以便抑制卫星墨滴的无意的喷射。
-
77.发明授权Self-cleaning ink jet printer having ultrasonics with reverse flow and method of assembling same 有权具有反向流动的超声波的自清洁喷墨打印机及其组装方法公开(公告)号：US06183057B2
公开(公告)日：2001-02-06
申请号：US09206272
申请日：1998-12-04
IPC分类号： B41J2165
CPC分类号： B41J2/16585 , B41J2/16552
摘要： Self-cleaning printer with reverse fluid flow and ultrasonics and method of assembling the printer. The printer comprises a print head defining a plurality of ink channels therein, each ink channel terminating in an ink ejection orifice. The print head also has a surface thereon surrounding all the orifices. Contaminant may reside on the surface and also may completely or partially obstruct the orifice. Therefore, a cleaning assembly is disposed relative to the surface and/or orifice for directing a flow of fluid along the surface and/or across the orifice to clean the contaminant from the surface and/or orifice. The cleaning assembly includes a septum disposed opposite the surface or orifice for defining a gap therebetween. Presence of the septum accelerates the flow of fluid through the gap to induce a hydrodynamic shearing force in the fluid. This shearing force acts against the contaminant to clean the contaminant from the surface and/or orifice. A pump in fluid communication with the gap is also provided for pumping the fluid through the gap. As the surface and/or orifice is cleaned, the contaminant is entrained in the fluid. A filter is provided to separate the contaminant from the fluid. In addition, a valve system in fluid communication with the gap is operable to direct flow of the fluid through the gap in a first direction and then in a second direction opposite the first direction to enhance cleaning effectiveness. Moreover, an ultrasonic transducer induces pressure waves in the fluid to dislodge the contaminant and thus clean the surface and/or orifice.
摘要翻译： 具有反向流体和超声波的自清洁打印机以及组装打印机的方法。 打印机包括在其中限定多个墨水通道的打印头，每个墨水通道终止于墨水喷射口。 打印头还具有围绕所有孔的表面。 污染物可能驻留在表面上，也可能完全或部分地堵塞孔口。 因此，相对于表面和/或孔设置清洁组件，用于沿着表面和/或穿过孔引导流体流，以从表面和/或孔口清洁污染物。 清洁组件包括与表面或孔相对设置的隔膜，用于在其间限定间隙。 隔垫的存在加速流体通过间隙的流动，以在流体中引起流体动力剪切力。 该剪切力作用在污染物上以从表面和/或孔口清洁污染物。 还提供与间隙流体连通的泵，用于泵送流体通过间隙。 当表面和/或孔被清洁时，污染物被夹带在流体中。 提供过滤器以将污染物与流体分离。 此外，与间隙流体连通的阀系统可操作以引导流体在第一方向上流过间隙，然后在与第一方向相反的第二方向上引导流体，以提高清洁效果。 此外，超声换能器在流体中引起压力波，以排除污染物并因此清洁表面和/或孔。
-
78.发明授权公开(公告)号：US07824017B2
公开(公告)日：2010-11-02
申请号：US12272860
申请日：2008-11-18
IPC分类号： B41J2/05
CPC分类号： B41J2/1412 , B41J2002/14177 , B41J2202/16
摘要： An apparatus and method for controlling temperature profiles in ejection mechanisms is provided. A heater includes a first resistor segment having an electrical resistivity, a second resistor segment; and a coupling segment positioned between the first resistor segment and the second resistor segment. The coupling segment has an electrical resistivity, wherein the ratio of the resistivity of the coupling segment to the resistivity of the first resistor segment is substantially zero. Alternatively, the first resistor segment has an electrical conductivity and the coupling segment has an electrical conductivity, wherein the electrical conductivity of the coupling segment is greater than the electrical conductivity of the first resistor segment.
摘要翻译： 提供了一种用于控制喷射机构温度分布的装置和方法。 加热器包括具有电阻率的第一电阻器段，第二电阻器段; 以及位于第一电阻器段和第二电阻器段之间的耦合段。 耦合段具有电阻率，其中耦合段的电阻率与第一电阻器段的电阻率之比基本为零。 或者，第一电阻器段具有导电性，并且耦合段具有导电性，其中耦合段的电导率大于第一电阻器段的电导率。
-
公开(公告)号：US20090315951A1
公开(公告)日：2009-12-24
申请号：US12143880
申请日：2008-06-23
申请人： John A. Lebens , Christopher N. Delametter , David P. Trauemicht , Emmanuel K. Dokyi , Weibin Zhang
发明人： John A. Lebens , Christopher N. Delametter , David P. Trauemicht , 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。
-
80.发明授权Drop-on-demand ink jet printer with controlled fluid flow to effect drop ejection 失效具有受控流体流动的点滴式喷墨打印机以实现液滴喷射公开(公告)号：US06568799B1
公开(公告)日：2003-05-27
申请号：US10055295
申请日：2002-01-23
IPC分类号： B41J275
CPC分类号： B41J2/14 , B41J2202/12
摘要： A drop on demand microfluidic ink jet printing system includes an ink flow chamber having a nozzle opening in a wall of the flow chamber through which ink droplets are ejected when ink in the flow chamber is at or above a predetermined positive pressure. An inlet channel opens into the flow chamber to supply thermally-responsive ink to the flow chamber at or above the predetermined pressure. A microfluidic outlet channel communicates the flow chamber with a low pressure ink reservoir such that thermally-responsive ink is normally transported from the flow chamber at a flow velocity sufficient to maintain ink in the flow chamber at a pressure less than the predetermined positive pressure. A valve selectively restricts the flow of the thermally-responsive ink through the microfluidic outlet channel sufficiently to cause an increase in ink pressure in the flow chamber to at least the predetermined positive pressure, the valve including a heater in contact with at least a portion of the associated microfluidic outlet channel, whereby the viscosity of the thermally-responsive ink can selectively be increased by heat from the heater to restrict the flow of the thermally-responsive ink from the flow chamber such that an ink droplet is ejected through the nozzle opening.
摘要翻译： 按需微型喷墨打印系统包括墨水流动室，其具有在流动室的壁中的喷嘴开口，当流动室中的墨水处于或高于预定的正压时，通过该喷嘴开口喷射墨滴。 入口通道通向流动室，以在预定压力或高于预定压力的情况下向流动室供应热响应性油墨。 微流出口通道将流动室与低压储墨器连通，使得热响应性油墨通常以足以将流动室中的墨维持在小于预定正压力的压力的流速从流动室输送。 阀选择性地限制热响应性油墨通过微流体出口通道的流动，足以使流动室中的油墨压力增加到至少预定的正压，该阀包括与至少一部分 相关联的微流体出口通道，由此热响应性油墨的粘度可以通过来自加热器的热量而选择性地增加，以限制来自流动室的热响应性油墨的流动，使得墨滴通过喷嘴开口喷射。
-
-
-
-
-
-
-
-
-
搜索结果
86 条记录 (耗时 0.034 秒)
