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    • 8. 发明授权
    • Liquid detection method and apparatus therefor, ink-jet printing apparatus, and ink detection method for the ink-jet printing apparatus
    • 液体检测方法及其设备,喷墨打印设备和用于喷墨打印设备的油墨检测方法
    • US06540318B1
    • 2003-04-01
    • US09544166
    • 2000-04-06
    • Tetsuhito Ikeda
    • Tetsuhito Ikeda
    • B41J201
    • B41J2/16579B41J2/125B41J2/17566B41J2002/17579
    • Detection of whether or not liquid or a liquid droplet (ink) has passed is realized without contacting the passing liquid or liquid droplet, by providing a radiated-wave detector, arranged near the liquid or liquid droplet, for detecting an infrared ray radiated from the passing liquid or liquid droplet, and a detector for detecting variation of an output value of the radiated-wave detector. Furthermore, the variation of an output value detected by the detector is integrated to obtain the variation amount of the output values, thereby obtaining the amount of liquid or liquid droplet (ink) passed. With the use of the foregoing configuration, further provided is an ink-jet printing apparatus which can accurately determine whether or not ink has been discharged by a printhead and which can measure the amount of ink discharged without contacting the ink, and an ink detection method for the ink-jet printing apparatus.
    • 通过提供布置在液体或液滴附近的辐射波检测器,可以实现液体或液滴(墨水)是否已经通过的检测而不与通过的液体或液滴接触,用于检测从液体或液滴辐射的红外线 通过液体或液滴,以及检测器,用于检测辐射波检测器的输出值的变化。 此外,由检测器检测的输出值的变化被积分以获得输出值的变化量,从而获得通过的液体或液滴(墨水)的量。 通过使用上述结构,还提供了一种喷墨打印设备,其可以精确地确定墨是否已被打印头排出,并且可以测量在不接触墨的情况下排出的墨量,以及墨检测方法 用于喷墨打印设备。