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    • 93. 发明授权
    • Ink jet recording head and an ink jet recording apparatus
    • 喷墨记录头和喷墨记录装置
    • US06179411B2
    • 2001-01-30
    • US09149278
    • 1998-09-09
    • Hideo SaikawaRyoji Inoue
    • Hideo SaikawaRyoji Inoue
    • B41J214
    • B41J2/14129B41J2/14056B41J2202/11
    • An ink jet recording head comprises a discharge port for discharging ink, two electrothermal converting elements for generating thermal energy utilized for discharging the ink, and an ink flow path provided with the two electrothermal converting elements, at the same time, being conductively connected with the discharge port, and this head has a first discharge mode for discharging liquid droplets from the discharge port when the electrothermal converting element on the side nearer to the discharge port, of the two electrothermal converting elements, receives driving signals to generate the thermal energy, and also, a second discharge mode for discharging liquid droplets from the discharge port in the larger discharge amount than that of the first mode when both of the two electrothermal converting elements receive driving signals to generate the thermal energy. Then, of the two electrothermal converting elements, the length of the electrothermal converting element on the side farther away from the discharge port in the ink discharge direction is made shorter than that of the other electrothermal converting element. With the ink jet recording head thus structured, it is possible to perform higher speed printing in higher image quality and higher gradation.
    • 喷墨记录头包括用于排出墨的排出口,用于产生用于排出墨的热能的两个电热转换元件和设置有两个电热转换元件的墨流路,同时与 并且该头部具有第一放电模式,用于当两个电热转换元件的更靠近排出口侧的电热转换元件接收驱动信号以产生热能时,从排出口排出液滴;以及 此外,当两个电热转换元件都接收驱动信号以产生热能时,第二放电模式用于以比第一模式更大的放电量从放电端口排出液滴。 然后,在两个电热转换元件中,使电热转换元件在喷墨方向上远离排出口的一侧的长度比其他电热转换元件的长度短。 通过这样构造的喷墨记录头,可以以更高的图像质量和更高的灰度进行更高速的打印。
    • 98. 发明授权
    • Liquid discharge method, liquid discharge head, liquid discharge apparatus, and method for manufacturing liquid discharge head
    • 液体排出法,排液头,液体排出装置以及液体排出头的制造方法
    • US06854831B2
    • 2005-02-15
    • US10255833
    • 2002-09-27
    • Masahiko KubotaHiroshi SugitaniMasanori TakenouchiMasami IkedaKiyomitsu KudoRyoji InoueTakashi Saito
    • Masahiko KubotaHiroshi SugitaniMasanori TakenouchiMasami IkedaKiyomitsu KudoRyoji InoueTakashi Saito
    • B41J2/005B41J2/14B41J2/16B41J2/05
    • B41J2/14048B41J2/1604B41J2/1623B41J2/1628B41J2/1629B41J2/1631B41J2/1642B41J2/1645B41J2/1646
    • A liquid discharging method for a liquid head discharge head, which is provided with a plurality of discharge ports for discharging liquid, a plurality of liquid flow paths communicated always with each of the discharge ports at one end, each having bubble generating area for creating bubble in liquid, bubble generating means for generating energy to create and grow the bubble, a plurality of liquid supply ports each arranged for each of the liquid flow paths to be communicated with common liquid supply chamber, and movable member supported with minute gap to the liquid supply port on the liquid flow path side, and provided with free end, the area of the movable member surrounded at least by the free end portion and both sides continued therefrom being made larger than the opening area of the liquid supply port facing the liquid flow path, comprises the step of setting a period for the movable member to close and essentially cut off the opening area during the period from the application of driving voltage to the bubble generating means to the substantial termination of isotropical growth of the entire bubble by the bubble generating means, hence making it possible to enhance the suppressing efficiency of the bubble growing component in the direction opposite to the discharge port, and the refilling characteristics of liquid simultaneously.
    • 一种用于液体排出头的液体排放方法,其具有多个用于排出液体的排出口,多个液体流路一端与每个排出口连通,每个具有用于产生气泡的气泡生成区域 在液体中,产生用于产生和增长气泡的能量的气泡生成装置,多个液体供给口,每个液体供给口设置用于与液体供应室连通的每个液体流动通道,以及以微小间隙支撑到液体的可动构件 供给口在液体流路侧,并且设置有自由端,至少被自由端部和从其继续的两侧包围的可动件的面积大于面向液体流的液体供给口的开口面积 包括在应用期间设定可动构件的周期闭合并基本上切断开口区域的步骤 通过气泡生成装置对气泡产生装置的驱动电压到达整个气泡的等温生长的基础上,从而可以提高气泡生长成分在与排出口相反的方向上的抑制效率,以及 同时液体的补液特性。
    • 99. 发明授权
    • Liquid discharging method
    • 液体排放法
    • US06533400B1
    • 2003-03-18
    • US09652664
    • 2000-08-31
    • Kiyomitsu KudoHiroshi SugitaniMasanori TakenouchiMasami IkedaMasahiko KubotaRyoji InoueTakashi Saito
    • Kiyomitsu KudoHiroshi SugitaniMasanori TakenouchiMasami IkedaMasahiko KubotaRyoji InoueTakashi Saito
    • B41J205
    • B41J2/14048
    • There is disclosed a liquid discharge head comprising: a plurality of discharge ports for discharging a liquid; a plurality of liquid flow paths whose one end portion always communicates with each of the discharge ports and which comprise a bubble generating area for generating a bubble in the liquid; bubble generating means for generating an energy to generate and grow the bubble; a plurality of liquid supply ports, disposed in the liquid flow paths, for communicating with a common liquid supply chamber; and a movable member having a free end supported at a slight gap with respect to the liquid flow path of the liquid supply port, so that recording of a high quality level image is achieved at a high speed. When a volume of a liquid droplet discharged from the discharge port is Vd, and during discharge of the liquid from the discharge port, a drawing volume from the discharge port to a liquid surface retracted to maximum into the liquid flow path is Vm, a relation of Vd>Vm is established. Therefore, meniscus returns fast, and a refill frequency can be enhanced.
    • 公开了一种液体排出头,包括:用于排出液体的多个排出口; 多个液体流动通道,其一个端部总是与每个排放口连通并且包括用于在液体中产生气泡的气泡生成区域; 用于产生能量以产生和增长气泡的气泡产生装置; 多个液体供给口,设置在所述液体流路中,用于与公共液体供给室连通; 以及可动构件,其具有相对于液体供给口的液体流动路径稍微间隙地支撑的自由端,从而高速地实现高质量水平图像的记录。 当从排出口排出的液滴的体积为Vd时,并且在从排出口排出液体时,从排出口到最终缩回到液体流路的液面的抽吸量为Vm,关系 的Vd> Vm。 因此,弯液面快速返回,并且可以提高再填充频率。
    • 100. 发明授权
    • Liquid discharge head, liquid discharge method and liquid discharge apparatus
    • 排液头,液体排出法和排液装置
    • US06435661B1
    • 2002-08-20
    • US09650996
    • 2000-08-31
    • Ryoji InoueHiroshi SugitaniMasanori TakenouchiMasami IkedaMasahiko KubotaKiyomitsu KudoTakashi Saito
    • Ryoji InoueHiroshi SugitaniMasanori TakenouchiMasami IkedaMasahiko KubotaKiyomitsu KudoTakashi Saito
    • B41J214
    • B41J2/14056B41J2/055B41J2/14048B41J2/14129
    • There is disclosed a liquid discharge head comprises a discharge port for discharging a liquid, a liquid flow path with one end constantly communicating with the discharge port and with a bubble generating area for generating a bubble in the liquid, a liquid supply port disposed in the liquid flow path and connected to a common liquid supply chamber for storing the liquid to be supplied to the liquid flow path, a plurality of bubble generating means, disposed in the liquid flow path, for generating the bubble in the liquid, and a plate-like movable member disposed in the liquid flow path with the side of the discharge port supported as a free end at a gap of 10 &mgr;m or less with respect to the liquid supply port on the side of the liquid flow path, and provided with a projection area larger than an opening area of the liquid supply port. The discharge port is in a linear communication state with the bubble generating means, and by driving the bubble generating means for generating the bubble with a smallest volume among the plurality of bubble generating means, the movable member seals and substantially shuts off the liquid supply port, which can increase a discharge amount ratio of liquid droplets, equalize liquid droplet discharge speeds, and raise a refill frequency after discharge.
    • 公开了一种液体排出头,其包括用于排出液体的排出口,一端与排出口恒定连通的液体流路,以及用于在液体中产生气泡的气泡发生区域, 液体流动路径并连接到公共液体供应室,用于储存要供应到液体流动通道的液体;多个气泡发生装置,设置在液体流动通道中,用于在液体中产生气泡; 所述液体流路中的所述液体流动路径中的所述液体流动路径中的液体供给口相对于所述液体流路的一侧的所述液体供给口以与所述液体流路相同的方式被支撑为自由端, 面积大于液体供应口的开口面积。 排出口与气泡产生装置处于线性连通状态,并且通过驱动用于在多个气泡生成装置中产生体积最小的气泡的气泡产生装置,可移动件密封并基本上关闭液体供应口 能够提高液滴的排出量比,均匀化液滴喷出速度,并且在排出后提高再充填频率。