Piezo-electric/electrostrictive film type chip
    5.
    发明授权
    Piezo-electric/electrostrictive film type chip 失效
    压电/电致伸缩薄膜型芯片

    公开(公告)号:US06440174B1

    公开(公告)日:2002-08-27

    申请号:US08809042

    申请日:1997-03-07

    IPC分类号: H01L4108

    摘要: A piezo-electric/electrostrictive film type chip (50) includes: a ceramic substrate (70) having a spacer plate (74) having a windows-disposed pattern (100) having a plurality of window portions (75) and a thin closure plate (72) for closing the window portions (75) which is unitarily connected with the spacer plate; and a piezo-electric/electrostrictive working portion (71) having a lower electrode (81), a piezo-electric/electrostrictive layer (82), and an upper electrode (83), each being formed in the form of a layer and laminated in this order at a closure portion of the window (75) on the outer surface of the closure plate (72) by a film formation method. A pin hole (52) for positioning is formed in or near the center of gravity of the windows-disposed pattern (100). Deterioration of positional preciseness of the pin hole and a through hole of the piezo-electric/electrostrictive actuator can be minimized, and the piezo-electric/electrostrictive actuator can be unitarily connected with an ink nozzle member with high positional preciseness.

    摘要翻译: 压电/电致伸缩薄膜型芯片(50)包括:具有隔板(74)的陶瓷基板(70),所述间隔板具有具有多个窗口部分(75)的窗口布置图案(100)和薄的封闭板 (72),用于封闭与间隔板一体连接的窗口部分(75); 以及具有下电极(81),压电/电致伸缩层(82)和上电极(83)的压电/电致伸缩工作部分(71),每个都以层的形式形成并层压 按照这种顺序,通过成膜方法在封闭板(72)的外表面上的窗口(75)的封闭部分处。 用于定位的销孔(52)形成在窗户布置图案(100)的重心附近或附近。 压电/电致伸缩致动器的销孔和通孔的位置精度的恶化可以最小化,并且压电/电致伸缩致动器可以与具有高位置精度的墨喷嘴构件一体地连接。

    Ink jet recording apparatus
    7.
    发明授权
    Ink jet recording apparatus 失效
    喷墨记录装置

    公开(公告)号:US5818472A

    公开(公告)日:1998-10-06

    申请号:US496974

    申请日:1995-06-30

    IPC分类号: B41J2/045 B41J2/055 B41J29/38

    摘要: An ink jet recording apparatus provided with: an ink jet recording head having a pressurizing chamber communicated with a nozzle opening and a common ink chamber, and a piezoelectric vibrating plate which is formed at a surface of the pressurizing chamber and deflection-displaced, the head being caused to eject an ink drop by the deflection displacement of the piezoelectric vibrating plate; a charging circuit which supplies a current to the piezoelectric vibrating plate in response to a print signal, thereby producing the deflection displacement for ink ejection, and which outputs a signal for holding a charge final voltage during a fixed time period after an end of charge; and a discharging circuit which has a first discharge time constant suitable for sucking meniscus formed immediately after ink ejection toward the pressurizing chamber, thereby preventing the meniscus from being ejected from the nozzle opening, which stops discharge in a range which is (n+3/4) to (n+1) times (where n is 1, 2, 3, . . . , or 8) a natural vibration period T of the piezoelectric vibrating plate, and which conducts discharge at a second and different discharge time constant at an elapse of a predetermined time period.

    摘要翻译: 一种喷墨记录装置,具备:喷墨记录头,其具有与喷嘴开口和公共墨室连通的加压室,以及形成在加压室的表面并偏移的压电振动板,头部 通过压电振动板的偏转位移而喷出墨滴; 充电电路,其响应于打印信号向压电振动板提供电流,从而产生用于喷墨的偏转位移,并且在充电结束之后的固定时间段期间输出用于保持充电最终电压的信号; 以及放电电路,其具有适于吸入刚刚在喷墨朝向加压室之后形成的弯液面的第一放电时间常数,从而防止弯液面从喷嘴开口喷射,其停止在(n ++ E ,3/4 + EE)至(n + 1)次(其中n为1,2,3或...)为压电振动板的固有振动周期T,并且在第二 并且在预定时间段内经过不同的放电时间常数。

    Ink jet recording apparatus and ink suction method of the recording head

    公开(公告)号:US06540322B2

    公开(公告)日:2003-04-01

    申请号:US09950714

    申请日:2001-09-13

    IPC分类号: B41J2165

    CPC分类号: B41J2/16508 B41J2/16547

    摘要: An ink jet recording apparatus in which a nozzle ink jet recording head provided with a nozzle plate provided with apertures for jetting an ink droplet and a capping device provided with a cap unit for sealing the apertures of the nozzle plate when the recording apparatus is not used are mounted, in which in the cap unit of the capping device, in a sealed state, an ink suction port for supplying negative pressure for exhausting ink from a nozzle aperture if necessary is arranged at the bottom and an atmospheric air open port for releasing negative pressure is arranged on one side and in which a porous plate provided with plural through holes for adjusting the distribution of pressure in the longitudinal direction of the cap unit is housed between the inner bottom face and the upper open face of the cap unit and further, an ink suction method of a recording head are provided.

    Ink jet recording apparatus and ink suction method of the recording head
    9.
    发明授权
    Ink jet recording apparatus and ink suction method of the recording head 失效
    喷墨记录装置和记录头的吸墨方法

    公开(公告)号:US06312092B1

    公开(公告)日:2001-11-06

    申请号:US09047333

    申请日:1998-03-25

    IPC分类号: B41J2165

    CPC分类号: B41J2/16508 B41J2/16547

    摘要: An ink jet recording apparatus in which a nozzle ink jet recording head provided with a nozzle plate provided with apertures for jetting an ink droplet and a capping device provided with a cap unit for sealing the apertures of the nozzle plate when the recording apparatus is not used are mounted, in which in the cap unit of the capping device, in a sealed state, an ink suction port for supplying negative pressure for exhausting ink from a nozzle aperture if necessary is arranged at the bottom and an atmospheric air open port for releasing negative pressure is arranged on one side and in which a porous plate provided with plural through holes for adjusting the distribution of pressure in the longitudinal direction of the cap unit is housed between the inner bottom face and the upper open face of the cap unit and further, an ink suction method of a recording head are provided.

    摘要翻译: 一种喷墨记录装置,其中设置有喷嘴板的喷嘴喷墨记录头,该喷嘴板设有用于喷射墨滴的孔,以及当不使用记录装置时设置有用于密封喷嘴板的孔的盖单元的封盖装置 在密封状态下安装在封盖装置的盖单元中,如果需要,则从喷嘴孔排出墨水的墨水吸入口设置在底部,并且设有用于释放负极的大气开口 压力设置在一侧,并且其中设置有用于调节盖单元的纵向方向上的压力分布的多个通孔的多孔板被容纳在盖单元的内底面和上开口面之间, 提供了一种记录头的吸墨方法。