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    • 1. 发明授权
    • Bubble jet recording method and apparatus in which a heating element
generates bubbles in a liquid flow path to project droplets
    • 气泡喷射记录方法和装置,其中加热元件在液体流动路径中产生气泡以投影液滴
    • US4723129A
    • 1988-02-02
    • US827489
    • 1986-02-06
    • Ichiro EndoYasushi SatoSeiji SaitoTakashi NakagiriShigeru Ohno
    • Ichiro EndoYasushi SatoSeiji SaitoTakashi NakagiriShigeru Ohno
    • B41J2/05B41J2/135B41J2/195B41J2/21G01D15/16
    • B41J2/0458B41J2/04593B41J2/195B41J2/2128
    • A liquid jet recording process comprises the step of providing a continuous passageway defining a path through which liquid can flow. The passageway has an inlet thereto and an outlet orifice therefrom and further defines a thermal chamber portion located directly in the path intermediate the inlet and the outlet orifice and spaced upstream from the outlet orifice. Liquid is supplied to the passageway to fill it and an input signal is generated each time it is desired to produce a liquid droplet. The liquid in the thermal chamber portion is heated in response to each input signal and heating is sufficient instantaneously to cause a change of state of the liquid in the thermal portion chamber sufficient to produce a force acting on liquid filling the passageway between the thermal chamber portion and the orifice that overcomes the surface tension of liquid at the orifice and thereby projects a droplet of liquid from the orifice. After projection of the droplet of liquid and with attenuation of the change of state and the force produced thereby, the liquid chamber portion is replenished with liquid.Apparatus for performing the liquid jet recording process is also disclosed.
    • 液体喷射记录方法包括提供限定液体可以流过的路径的连续通道的步骤。 该通道具有入口及其出口孔,并进一步限定位于入口和出口孔之间的路径中的热室部分,并且在出口孔的上游间隔开。 液体被供应到通道以填充它,并且每当需要产生液滴时产生输入信号。 热室部分中的液体响应于每个输入信号被加热,并且加热足以瞬间地加热,以使得热部分室中的液体的状态改变足以产生作用在液体上的力,该液体填充热室部分之间的通道 以及孔口,其克服了孔口处的液体的表面张力,从而从孔口突出液滴。 在液滴突出之后,随着状态变化和由此产生的力的衰减,液体室部分被补充液体。 还公开了用于进行液体喷射记录处理的装置。
    • 7. 发明授权
    • Bubble jet recording apparatus with processing circuit for tone
gradation recording
    • 具有用于音调灰度记录的处理电路的气泡喷射记录装置
    • US5521621A
    • 1996-05-28
    • US180831
    • 1994-01-12
    • Ichiro EndoYasushi SatoSeiji SaitoTakashi NakagiriShigeru Ohno
    • Ichiro EndoYasushi SatoSeiji SaitoTakashi NakagiriShigeru Ohno
    • B41J2/05B41J2/135B41J2/195B41J2/21B41J2/205
    • B41J2/0458B41J2/04593B41J2/195B41J2/2128
    • A recording apparatus comprises an inlet for accepting a liquid to be delivered to an outlet orifice through a liquid flow path. Liquid is supplied to the inlet for flow through the liquid flow path to a heating element, which heats liquid in the liquid flow path. Heating is sufficient to cause a change of state of the liquid (that is, to generate a bubble) and produce a force acting on the liquid which overcomes the surface tension of liquid at the orifice and thereby projects a droplet of liquid from the orifice. The temperature of the heating element is raised at each actuation to a temperature above the maximum temperature at which the liquid in the liquid flow path is subjected only to nucleate boiling so as to promote substantially instantaneous transfer of heat to the liquid proximate to the heating element and to retard the transfer of heat from the heating element to liquid at other locations in the liquid flow path. A processing circuit changes either the size or number of the projected droplets to effect tone gradation recording.
    • 记录装置包括用于接收通过液体流动路径输送到出口孔的液体的入口。 液体被供应到入口以流过液体流动路径到加热元件,加热元件加热液体流动路径中的液体。 加热足以引起液体状态的变化(即产生气泡)并产生作用在液体上的力,其克服了孔处液体的表面张力,从而从孔突出液滴。 加热元件的温度在每个致动时升高到高于液体流动路径中的液体仅经受核沸腾的最高温度的温度,以便促使热量基本上瞬时转移到靠近加热元件的液体 并且阻止在液体流路中的其它位置处的热量从加热元件传递到液体。 处理电路改变投影液滴的大小或数量,以进行色调灰度记录。