Method and apparatus for driving ink jet recording head
    1.
    发明授权
    Method and apparatus for driving ink jet recording head 失效
    用于驱动喷墨记录头的方法和装置

    公开(公告)号:US5510816A

    公开(公告)日:1996-04-23

    申请号:US972558

    申请日:1992-11-06

    IPC分类号: B41J2/045

    摘要: A method of driving an ink jet recording head comprising the steps of: retreating a vibrating plate to a predetermined position from a nozzle opening at such a speed as to allow a meniscus at the nozzle opening to be jetted from the nozzle opening while applying a drive voltage to a piezoelectric vibrating element; holding the vibrating plate at the position; and advancing the vibrating plate toward the nozzle opening when the meniscus has returned to a position 1/3 or more of the farthest retreat position thereof. As a result, a pressure chamber contracted to thereby apply pressure to ink when inertial stream of the ink become stable and heads toward the nozzle opening, producing an ink droplet to be jetted at a predetermined speed irrespective of the position of the meniscus.

    摘要翻译: 一种驱动喷墨记录头的方法,包括以下步骤:将振动板从喷嘴开口退回到预定位置,以允许喷嘴开口处的弯液面从喷嘴开口喷射,同时施加驱动 电压到压电振动元件; 将振动板固定在该位置; 并且当弯液面已经返回其最远的退避位置的1/3或更多的位置时,使振动板朝向喷嘴开口前进。 结果,压缩室收缩,从而当油墨的惯性流变得稳定并且朝向喷嘴开口时朝向油墨施加压力,产生以预定速度喷射的墨滴,而不管弯液面的位置如何。

    Ink jet type recording head driving circuit
    2.
    发明授权
    Ink jet type recording head driving circuit 失效
    喷墨式记录头驱动电路

    公开(公告)号:US5426454A

    公开(公告)日:1995-06-20

    申请号:US996620

    申请日:1992-12-24

    IPC分类号: B41J2/045 B41J2/055

    摘要: An ink jet type recording head driving circuit comprises: a capacitor which is connected through a first switching transistor and a charging time constant adjusting resistor to a power source, and grounded through a second switching transistor and a discharging time constant adjusting resistor; and a current buffer through which the terminal voltage of the capacitor is applied to a pressure generating member scanning switch circuit. In the circuit, a first pulse for contracting a pressure generating member forming the recording head is applied to the first switching transistor, and a second pulse for expanding the pressure generating member is applied to the second switching transistor, so that the pressure generating member is contracted at a rate set by the capacitor and the charging time constant adjusting resistor, to supply ink into the pressure chamber of the recording head, and then it is expanded at a rate set by the capacitor and the discharging time constant adjusting resistor.

    摘要翻译: 一种喷墨式记录头驱动电路,包括:电容器,其通过第一开关晶体管和充电时间常数调节电阻器连接到电源,并通过第二开关晶体管和放电时间常数调节电阻器接地; 以及电流缓冲器,电容器的端子电压通过该缓冲器施加到压力产生部件扫描开关电路。 在该电路中,将形成记录头的压力产生部件收缩的第一脉冲施加到第一开关晶体管,并且用于使压力产生部件膨胀的第二脉冲施加到第二开关晶体管,使得压力产生部件为 以电容器和充电时间常数调节电阻器设定的速率收缩,将墨水供应到记录头的压力室中,然后以由电容器和放电时间常数调节电阻器设定的速率扩展。

    Liquid ejecting apparatus
    3.
    发明授权
    Liquid ejecting apparatus 有权
    液体喷射装置

    公开(公告)号:US08303066B2

    公开(公告)日:2012-11-06

    申请号:US13179943

    申请日:2011-07-11

    IPC分类号: B41J29/38

    摘要: A liquid ejecting apparatus includes: a head having a nozzle; a pressure-changing unit for changing pressure of liquid in the nozzle in such a manner that the liquid is ejected from the nozzle; a first level-data setting unit for setting a selected first level data from a plurality of first level data, based on an ejecting data for a first kind of liquid; a second level-data setting unit for setting a selected second level data from a plurality of second level data, based on an ejecting data for a second kind of liquid; a driving-signal generator for generating a driving signal; and a driving-pulse generator for generating a driving pulse based on the selected first or second level data and the driving signal. The plurality of first level data and the plurality of second level data are different from each other.

    摘要翻译: 液体喷射装置包括:具有喷嘴的头部; 压力改变单元,用于以使得液体从喷嘴喷射的方式改变喷嘴中的液体的压力; 第一电平数据设定单元,用于基于第一类液体的喷射数据,从多个第一电平数据中设定所选择的第一电平数据; 第二电平数据设定单元,用于基于第二类液体的喷射数据,从多个第二电平数据中设定所选择的第二电平数据; 用于产生驱动信号的驱动信号发生器; 以及驱动脉冲发生器,用于基于所选择的第一或第二电平数据和驱动信号产生驱动脉冲。 多个第一级数据和多个第二级数据彼此不同。

    Liquid ejecting apparatus driving-signals generation
    4.
    发明授权
    Liquid ejecting apparatus driving-signals generation 有权
    液体喷射装置的驱动信号产生

    公开(公告)号:US07500726B2

    公开(公告)日:2009-03-10

    申请号:US11393711

    申请日:2006-03-31

    IPC分类号: B41J29/38 B41J2/205

    摘要: A liquid ejecting apparatus includes: a head having a nozzle; a pressure-changing unit for changing pressure of liquid in the nozzle in such a manner that the liquid is ejected from the nozzle; a first level-data setting unit for setting a selected first level data from a plurality of first level data, based on an ejecting data for a first kind of liquid; a second level-data setting unit for setting a selected second level data from a plurality of second level data, based on an ejecting data for a second kind of liquid; a driving-signal generator for generating a driving signal; and a driving-pulse generator for generating a driving pulse based on the selected first or second level data and the driving signal. The plurality of first level data and the plurality of second level data are different from each other.

    摘要翻译: 液体喷射装置包括:具有喷嘴的头部; 压力改变单元,用于以使得液体从喷嘴喷射的方式改变喷嘴中的液体的压力; 第一电平数据设定单元,用于基于第一类液体的喷射数据,从多个第一电平数据中设定所选择的第一电平数据; 第二电平数据设定单元,用于基于第二类液体的喷射数据,从多个第二电平数据中设定所选择的第二电平数据; 用于产生驱动信号的驱动信号发生器; 以及驱动脉冲发生器,用于基于所选择的第一或第二电平数据和驱动信号产生驱动脉冲。 多个第一级数据和多个第二级数据彼此不同。

    Liquid ejecting apparatus
    5.
    发明授权
    Liquid ejecting apparatus 有权
    液体喷射装置

    公开(公告)号:US07988249B2

    公开(公告)日:2011-08-02

    申请号:US12366505

    申请日:2009-02-05

    IPC分类号: B41J29/38

    摘要: A liquid ejecting apparatus includes: a head having a nozzle; a pressure-changing unit for changing pressure of liquid in the nozzle in such a manner that the liquid is ejected from the nozzle; a first level-data setting unit for setting a selected first level data from a plurality of first level data, based on an ejecting data for a first kind of liquid; a second level-data setting unit for setting a selected second level data from a plurality of second level data, based on an ejecting data for a second kind of liquid; a driving-signal generator for generating a driving signal; and a driving-pulse generator for generating a driving pulse based on the selected first or second level data and the driving signal. The plurality of first level data and the plurality of second level data are different from each other.

    摘要翻译: 液体喷射装置包括:具有喷嘴的头部; 压力改变单元,用于以使得液体从喷嘴喷射的方式改变喷嘴中的液体的压力; 第一电平数据设定单元,用于基于第一类液体的喷射数据,从多个第一电平数据中设定所选择的第一电平数据; 第二电平数据设定单元,用于基于第二类液体的喷射数据,从多个第二电平数据中设定所选择的第二电平数据; 用于产生驱动信号的驱动信号发生器; 以及驱动脉冲发生器,用于基于所选择的第一或第二电平数据和驱动信号产生驱动脉冲。 多个第一级数据和多个第二级数据彼此不同。

    Liquid ejecting apparatus
    6.
    发明申请
    Liquid ejecting apparatus 有权
    液体喷射装置

    公开(公告)号:US20060232616A1

    公开(公告)日:2006-10-19

    申请号:US11393711

    申请日:2006-03-31

    IPC分类号: B41J2/01

    摘要: A liquid ejecting apparatus includes: a head having a nozzle; a pressure-changing unit for changing pressure of liquid in the nozzle in such a manner that the liquid is ejected from the nozzle; a first level-data setting unit for setting a selected first level data from a plurality of first level data, based on an ejecting data for a first kind of liquid; a second level-data setting unit for setting a selected second level data from a plurality of second level data, based on an ejecting data for a second kind of liquid; a driving-signal generator for generating a driving signal; and a driving-pulse generator for generating a driving pulse based on the selected first or second level data and the driving signal. The plurality of first level data and the plurality of second level data are different from each other.

    摘要翻译: 液体喷射装置包括:具有喷嘴的头部; 压力改变单元,用于以使得液体从喷嘴喷射的方式改变喷嘴中的液体的压力; 第一电平数据设定单元,用于基于第一类液体的喷射数据,从多个第一电平数据中设定所选择的第一电平数据; 第二电平数据设定单元,用于基于第二类液体的喷射数据,从多个第二电平数据中设定所选择的第二电平数据; 用于产生驱动信号的驱动信号发生器; 以及驱动脉冲发生器,用于基于所选择的第一或第二电平数据和驱动信号产生驱动脉冲。 多个第一级数据和多个第二级数据彼此不同。