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    Ink jet type recording head driving circuit
    5.
    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

    申请人： Satoru Hosono ,  Tomoaki Abe ,  Shuji Yonekubo ,  Minoru Usui ,  Masahiko Yoshida

    发明人： Satoru Hosono ,  Tomoaki Abe ,  Shuji Yonekubo ,  Minoru Usui ,  Masahiko Yoshida

    IPC分类号： B41J2/045 ,  B41J2/055

    CPC分类号： B41J2/04506 ,  B41J2/04541 ,  B41J2/04563 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/0459 ,  B41J2/04591 ,  B41J2002/14387

    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。

    Method and apparatus for driving ink jet recording head
    6.
    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

    申请人： Satoru Hosono ,  Tomoaki Abe ,  Shuji Yonekubo ,  Tsuyoshi Kitahara ,  Takahiro Katakura

    发明人： Satoru Hosono ,  Tomoaki Abe ,  Shuji Yonekubo ,  Tsuyoshi Kitahara ,  Takahiro Katakura

    IPC分类号： B41J2/045

    CPC分类号： B41J2/04541 ,  B41J2/04581 ,  B41J2002/14387

    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。

    Drop-on-demand ink-jet printing head
    7.
    发明授权
    Drop-on-demand ink-jet printing head 失效
    按需喷墨打印头

    公开(公告)号：US06742875B2

    公开(公告)日：2004-06-01

    申请号：US09758163

    申请日：2001-01-12

    申请人： Minoru Usui ,  Haruhiko Koto ,  Haruo Nakamura ,  Yozo Shimada ,  Tomoaki Abe

    发明人： Minoru Usui ,  Haruhiko Koto ,  Haruo Nakamura ,  Yozo Shimada ,  Tomoaki Abe

    IPC分类号： B41J245

    CPC分类号： B41J2/14274

    摘要： A drop-on-demand ink-jet printing head provided with an array of a plurality of piezoelectric elements arranged at regular intervals and fixed at their one ends to a base, the other ends of the respective piezoelectric elements being free ends which are disposed in opposition to nozzle respective apertures, the piezoelectric elements being formed by cutting, at predetermined width, a piezoelectric plate obtained by firing a lamination of paste-like piezoelectric material conductive material stacked alternately in layers. Since each piezoelectric element is composed of a thin piezoelectric plate interposed between electrodes, if a voltage of only about 30 V, which is sufficient to drive the thin piezoelectric plate, is applied across the electrodes, it is possible to largely flex the whole of the piezoelectric element. By this transformation, ink between the top end of the piezoelectric element and the nozzle aperture is discharged to the outside as an ink drop. Because the driving voltage required for forming an ink drop is as low as possible, it is possible to simplify a driving circuit, and because of cutting a piezoelectric plate, it is possible to form small-sized piezoelectric elements with the same accuracy as in a process of producing a semiconductor.

    摘要翻译： 一种按需喷墨打印头，其设置有以规则间隔布置的多个压电元件的阵列，并且其一端固定在基座上，各个压电元件的另一端为自由端，其位于 与喷嘴相应的孔相对，压电元件通过以预定的宽度切割通过烧结层叠交替层叠的糊状压电材料导电材料而获得的压电板而形成。 由于每个压电元件由介于电极之间的薄压电板构成，所以如果仅在电极之间施加足以驱动薄压电板的约30V的电压，则可以将整个 压电元件 通过这种变换，压电元件的顶端和喷嘴孔之间的墨水作为墨滴被排放到外部。 由于形成墨滴所需的驱动电压尽可能地低，所以可以简化驱动电路，并且由于切割压电板，所以可以形成小型压电元件，其精度与 制造半导体的工艺。

    Drop-on-demand ink-jet printing head
    9.
    发明授权
    Drop-on-demand ink-jet printing head 失效

    公开(公告)号：US5910809A

    公开(公告)日：1999-06-08

    申请号：US393920

    申请日：1995-02-24

    申请人： Minoru Usui ,  Haruhiko Koto ,  Haruo Nakamura ,  Yozo Shimada ,  Tomoaki Abe

    发明人： Minoru Usui ,  Haruhiko Koto ,  Haruo Nakamura ,  Yozo Shimada ,  Tomoaki Abe

    IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/14 ,  B41J2/16 ,  G01D15/18

    CPC分类号： B41J2/1623 ,  B41J2/14274 ,  B41J2/14282 ,  B41J2/161 ,  B41J2/1612 ,  B41J2/1614 ,  B41J2/1626 ,  B41J2/1632 ,  B41J2002/14387

    摘要： A drop-on-demand ink-jet printing head provided with an array of a plurality of piezoelectric elements arranged at regular intervals and fixed at their one ends to a base, the other ends of the respective piezoelectric elements being free ends which are disposed in opposition to nozzle respective apertures, the piezoelectric elements being formed by cutting, at predetermined width, a piezoelectric plate obtained by firing a lamination of paste-like piezoelectric material and conductive material stacked alternately in layers. Since each piezoelectric element is composed of a thin piezoelectric plate interposed between electrodes, if a voltage of only about 30 V, which is sufficient to drive the thin piezoelectric plate, is applied across the electrodes, it is possible to largely flex the whole of the piezoelectric element. By this transformation, ink between the top end of the piezoelectric element and the nozzle aperture is discharged to the outside as an ink drop. Because the driving voltage required for forming an ink drop is as low as possible, it is possible to simplify a driving circuit, and because of cutting a piezoelectric plate, it is possible to form small-sized piezoelectric elements with the same accuracy as in a process of producing a semiconductor.

    Drop-on-demand ink-jet printing head
    10.
    发明授权
    Drop-on-demand ink-jet printing head 失效
    按需喷墨打印头

    公开(公告)号：US5600357A

    公开(公告)日：1997-02-04

    申请号：US433756

    申请日：1995-05-04

    申请人： Minoru Usui ,  Haruhiko Koto ,  Haruo Nakamura ,  Yozo Shimada ,  Tomoaki Abe

    发明人： Minoru Usui ,  Haruhiko Koto ,  Haruo Nakamura ,  Yozo Shimada ,  Tomoaki Abe

    IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/14 ,  B41J2/16 ,  G01D15/18

    CPC分类号： B41J2/1623 ,  B41J2/14274 ,  B41J2/14282 ,  B41J2/161 ,  B41J2/1612 ,  B41J2/1614 ,  B41J2/1626 ,  B41J2/1632 ,  B41J2002/14387

    摘要： A drop-on-demand ink-jet printing head provided with an array of a plurality of piezoelectric elements arranged at regular intervals and fixed at their one ends to a base, the other ends of the respective piezoelectric elements being free ends which are disposed in opposition to nozzle respective apertures, the piezoelectric elements being formed by cutting, at predetermined width, a piezoelectric plate obtained by firing a lamination of paste-like piezoelectric material and conductive material stacked alternately in layers. Since each piezoelectric element is composed of a thin piezoelectric plate interposed between electrodes, if a voltage of only about 30 V, which is sufficient to drive the thin piezoelectric plate, is applied across the electrodes, it is possible to largely flex the whole of the piezoelectric element. By this transformation, ink between the top end of the piezoelectric element and the nozzle aperture is discharged to the outside as an ink drop. Because the driving voltage required for forming an ink drop is as low as possible, it is possible to simplify a driving circuit, and because of cutting a piezoelectric plate, it is possible to form small-sized piezoelectric elements with the same accuracy as in a process of producing a semiconductor.

    摘要翻译： 一种按需喷墨打印头，其设置有以规则间隔布置的多个压电元件的阵列，并且其一端固定在基座上，各个压电元件的另一端为自由端，其位于 与喷嘴相应的孔相对，压电元件通过以预定的宽度切割通过焙烧层状的糊状压电材料和交替层叠的导电材料而获得的压电板而形成。 由于每个压电元件由介于电极之间的薄压电板构成，所以如果仅在电极之间施加足以驱动薄压电板的约30V的电压，则可以将整个 压电元件 通过这种变换，压电元件的顶端和喷嘴孔之间的墨水作为墨滴被排放到外部。 由于形成墨滴所需的驱动电压尽可能地低，所以可以简化驱动电路，并且由于切割压电板，所以可以形成小型压电元件，其精度与 制造半导体的工艺。