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    • 7. 发明授权
    • Self cleaning ink jet printhead cartridges
    • 自清洁喷墨打印头墨盒
    • US06267464B1
    • 2001-07-31
    • US09221349
    • 1998-12-28
    • Edward P. FurlaniSyamal K. GhoshDilip K. Chatterjee
    • Edward P. FurlaniSyamal K. GhoshDilip K. Chatterjee
    • B41J2165
    • B41J2/16552B41J2002/16567
    • Ink jet cartridge for an ink jet printer including an orifice plate having a plurality of orifices for ink ejection; a cartridge for receiving a reservoir having ink which is adapted to be ejected through the orifices, the cartridge including a cleaning manifold having a plurality of inlet and outlet passages through which cleaning fluid can be applied so that such fluid is directed across the surface of the orifice plate; and a plurality of actuable ultrasonic transducers disposed in operative relationship with respect to the orifice plate and which when actuated produce ultrasonic sound waves which impinge upon the orifice plate to loosen debris whereby the cleaning fluid directed across the surface of the orifice plate carries away such loosened debris.
    • 一种用于喷墨打印机的喷墨盒,包括具有多个用于喷墨的喷嘴的孔板; 用于容纳具有适于通过所述孔排出墨水的储存器的墨盒,所述墨盒包括具有多个入口和出口通道的清洁歧管,通过所述入口和出口通道清洁流体,使得这样的流体被引导穿过所述孔的表面 孔板; 以及多个可致动的超声波换能器,其相对于孔板以可操作的关系设置,并且当致动时产生撞击孔板的超声波,以松动碎屑,由此导向穿过孔板表面的清洁流体带走了这种松动的 碎片
    • 8. 发明授权
    • Piezoelectric actuating element for an ink jet head and the like
    • 用于喷墨头的压电致动元件等
    • US06169355A
    • 2001-01-02
    • US09120995
    • 1998-07-22
    • Edward P. FurlaniSyamal K. GhoshDilip K. Chatterjee
    • Edward P. FurlaniSyamal K. GhoshDilip K. Chatterjee
    • H01L4108
    • B41J2/14201
    • An ink jet head has body having a plurality of independent ink compartments each having an inlet orifice, an outlet orifice and a piezoelectric ink actuating element structurally associated with each of said independent ink compartments, said piezoelectric ink actuating element enabling said ink jet head to receive ink from an ink reservoir in fluid communications with said inlet orifice of each one of said plurality of independent ink compartments and then eject droplets of the ink onto a receiver to form an image. The piezoelectric actuating element includes a substantially planar piezoelectric transducer comprising a slab of piezoelectric material having a functionally gradient d-coefficient selected so that the slab changes geometry in response to an applied voltage which produces an electric field in the slab.
    • 一种喷墨头具有多个独立的油墨室,每个独立的油墨室具有与每个所述独立油墨室结构相关的入口孔,出口孔和压电油墨致动元件,所述压电油墨致动元件使所述喷墨头能够接收 来自墨水储存器的墨水与所述多个独立墨水隔室中的每一个的所述入口孔流体连通,然后将墨滴喷射到接收器上以形成图像。 压电致动元件包括基本上平面的压电换能器,其包括具有选择的功能梯度d系数的压电材料板,使得板坯响应于在板坯中产生电场的施加电压而改变几何形状。
    • 10. 发明授权
    • Making printheads using tapecasting
    • 使用tapecasting打印头
    • US6161270A
    • 2000-12-19
    • US240752
    • 1999-01-29
    • Syamal K. GhoshDilip K. ChatterjeeEdward P. FurlaniJames K. Lee
    • Syamal K. GhoshDilip K. ChatterjeeEdward P. FurlaniJames K. Lee
    • B41J2/16H04R17/00
    • B41J2/1637B41J2/1609B41J2/1632Y10T29/42Y10T29/49401Y10T29/49982Y10T29/49988
    • A method of making a printhead includes forming a channel member by providing a mold having a top portion having peaks and valleys and by tape casting a slurry of piezoelectric material into the mold and onto the peaks and valleys of the top portion of the mold to form a tape cast member having a bottom surface with peaks and valleys and a flat top surface and removing the tape cast member. After removing the tape cast member, the top surface of the tape cast member is embossed so as to provide peaks and valleys in opposite sides of the tape cast member wherein the valleys in the top surface are disposed in an offset relationship to the peaks in the bottom surface. Thereafter, the embossed tape cast member is poled to align the electrical dipoles within the piezoelectric material; and a coating of conductive material is formed over the top and bottom surfaces of the tape cast member and then cutting grooves through conductive coating into the top surface in the valleys of the tape cast member to form a channel member. Finally, an orifice plate is provided over top surface of the channel member and a substrate over the bottom surface of the channel member.
    • 制造打印头的方法包括通过提供具有顶部和顶部的顶部的模具形成通道构件,并且通过将压电材料的浆料浇铸到模具中并在模具的顶部的顶部和谷部上形成 具有底部表面具有峰谷的带状铸造件和平坦的顶表面并且移除带状铸件。 在移除胶带铸造件之后,带状铸造件的顶部表面被压花以便在胶带铸造件的相对侧中提供峰和谷,其中顶表面中的谷设置成与 底面。 此后,压花带铸造件被极化以将电偶极子对准压电材料; 并且在带状铸造件的顶表面和底表面上形成导电材料涂层,然后通过导电涂层将沟槽切割成带状浇铸构件的谷中的顶表面,以形成通道构件。 最后,在通道构件的顶表面上设置孔板,并在通道构件的底表面上设置基板。