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    • 2. 发明授权
    • Liquid jet head with a movable member, head cartridge using the liquid jet head, liquid jet apparatus and liquid discharging method
    • 具有可移动部件的液体喷射头,使用液体喷射头的头部盒,液体喷射装置和液体排出方法
    • US06318848B1
    • 2001-11-20
    • US08888048
    • 1997-07-03
    • Osamu IwasakiToshio KashinoHiroshi TajikaYasutoshi SaitoMasaya UetukiHidehiko KandaYoshie Asakawa
    • Osamu IwasakiToshio KashinoHiroshi TajikaYasutoshi SaitoMasaya UetukiHidehiko KandaYoshie Asakawa
    • B41J205
    • B41J2/14048B41J2/14056
    • A liquid jet head is provided with discharge ports for discharging liquid, liquid flow paths conductively connected with the discharge ports, air bubble generating areas for creating air bubbles in the liquid, and movable members arranged to face the air bubble generating areas, each having a free end in a position relatively near to the discharge port with respect to a fulcrum thereof. This movable member is inclined to position the free end of the movable member to release the air bubble generating area partly to the discharge port so as to enable the tangential line of the free end of the movable member on the side of the air bubble generating area or the extended line thereof to reach directly the discharge port formation area having the discharge port on the liquid flow path side before the creation of air bubble on the air bubble generating area, and with this position as reference, the movable member is displaced following the creation of air bubble on the air bubble generating area. With this arrangement, the liquid discharging efficiency and speed are significantly enhanced as compared with the conventional liquid jet head, and due to more stabilized discharge of droplets from the discharge ports, the quality of recorded images is improved.
    • 液体喷射头设置有用于排放液体的排出口,与排出口导电连接的液体流动通道,用于在液体中产生气泡的气泡生成区域和布置成面对气泡生成区域的可动构件,每个具有 自由端相对于其支点相对靠近排出口的位置。 该可动件倾斜以定位可移动部件的自由端,以将气泡生成区域部分地释放到排出口,以便可动件的自由端在气泡生成区域侧的切线 或其延伸线在气泡生成区域产生气泡之前直接到达具有在液体流路侧上的排出口的排出口形成区域,并且以该位置为基准,可移动部件沿着 在气泡发生区产生气泡。 通过这种布置,与传统的液体喷射头相比,液体排放效率和速度显着提高,并且由于来自排出口的液滴的更稳定的排放,提高了记录图像的质量。
    • 4. 发明授权
    • Method for preserving a liquid-ejection head, and liquid-ejection
apparatus
    • 用于保存液体喷射头的方法和液体喷射装置
    • US6095639A
    • 2000-08-01
    • US890333
    • 1997-07-09
    • Masaya UetsukiToshio KashinoHiroshi TajikaOsamu IwasakiHidehiko KandaYoshie Asakawa
    • Masaya UetsukiToshio KashinoHiroshi TajikaOsamu IwasakiHidehiko KandaYoshie Asakawa
    • B41J2/01B41J2/05B41J2/14B41J2/175B41J2/21
    • B41J2/14048B41J2/211B41J2202/21
    • A method for preserving a liquid-ejection head is disclosed. The method uses the liquid-ejection head having a first liquid-flowing passage that receives a supply of a first liquid and communicates with an ejection port; a second liquid-flowing passage that receives a supply of a second liquid that differs from the first liquid; a bubble generation area formed on the second liquid-flowing passage for heating the second liquid to generate a bubble in said second liquid; and a movable member positioned between the bubble generation area, having a free end on an ejection port's side of the first liquid-flowing passage and a supporting end on other side of the first liquid-flowing passage, where the free end of the movable member is displaced toward the first liquid-flowing passage by a pressure caused by a generation of the bubble when said second liquid is heated. The method includes a step of performing a replacement of one of the fist liquid and the second liquid with the other at least at a periphery of the ejection port or a periphery of the movable member. Thus the liquid-ejection head is able to perform an excellent recording whether it has not been used for a long time.
    • 公开了一种用于保持液体喷射头的方法。 该方法使用具有第一液体流动通道的液体喷射头,其接收第一液体的供应并与排出口连通; 第二液体流通通道,其接收与第一液体不同的第二液体的供给; 形成在第二液体流通通道上用于加热第二液体以在所述第二液体中产生气泡的气泡产生区域; 以及位于所述气泡生成区域之间的可动件,所述气泡产生区域具有在所述第一液体流通通道的喷射口侧的自由端和在所述第一液体流道的另一侧的支撑端,所述可移动部件的自由端 当所述第二液体被加热时,通过由气泡的产生引起的压力朝着第一液体流动通道移位。 该方法包括至少在喷射口的周边或可移动部件的周边处更换第一液体和第二液体中的一个的步骤。 因此,液体喷射头能够执行优异的记录,不管它是否长时间使用。
    • 6. 发明授权
    • Liquid ejection method, head and apparatus in which an amount of liquid ejected is controlled
    • 液体喷射方法,头部和其中喷射的液体量被控制的装置
    • US06252616B1
    • 2001-06-26
    • US08872627
    • 1997-06-09
    • Takeshi OkazakiToshio KashinoHiroshi TajikaKouichi OmataAya YoshihiraKiyomitsu KudoMasao KatoYoshie AsakawaHitoshi Tsuboi
    • Takeshi OkazakiToshio KashinoHiroshi TajikaKouichi OmataAya YoshihiraKiyomitsu KudoMasao KatoYoshie AsakawaHitoshi Tsuboi
    • B41J205
    • B41J2/04528B41J2/04563B41J2/0458B41J2/04588B41J2/04591B41J2/04593B41J2/04598B41J2/14024B41J2/14048B41J2/14056B41J2202/21
    • A liquid ejection method involves supplying liquid along a heat generating element disposed along a flow path from upstream of the heat generating element, applying heat generated by the heat generating element to the thus supplied liquid to generate a bubble, thus moving a free end of a movable member having the free end adjacent the ejection outlet side by pressure produced by the bubble, the movable member facing the heat generating element, supplying, to a heat generating element for applying thermal energy to the bubble generating region, a driving pulse divided into a first pulse and an adjacent second pulse with interval time therebetween, pre-heating the liquid by the first pulse to an extent insufficient to eject liquid through the ejection outlet, and generating a bubble by heating the liquid by the second pulse to eject the liquid through the ejection outlet. The method also includes ejecting liquid in an amount determined by controlling a degree of pre-heating of the liquid by changing at least one of a width of the first pulse or the interval time. The change rate of the ejection amount of the liquid increases non-linearly with an increase of the width of the first pulse or an increase of the interval time period. Recording heads and apparatuses control the ejection amount of liquid in like manner.
    • 液体喷射方法包括沿着沿着流动路径从发热元件的上游设置的发热元件供应液体,将由发热元件产生的热量施加到如此供应的液体以产生气泡,从而使自由端 可移动构件,其具有通过由气泡产生的压力而邻近喷射出口侧的自由端,可动构件面向发热元件,供应到用于向气泡发生区域施加热能的发热元件,分配为 第一脉冲和相邻的第二脉冲之间具有间隔时间,通过第一脉冲将液体预加热到不足以通过喷射出口喷射液体的程度,并且通过用第二脉冲加热液体产生气泡以将液体通过 喷出口。 该方法还包括以通过改变第一脉冲的宽度或间隔时间中的至少一个来控​​制液体的预热程度而确定的量来喷射液体。 随着第一脉冲的宽度的增加或间隔时间的增加,液体的喷射量的变化率非线性地增加。 记录头和装置以类似的方式控制液体的喷射量。