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    • 3. 发明授权
    • Apparatus for providing ink to an ink jet print head
    • 用于向喷墨打印头提供墨水的设备
    • US06685307B2
    • 2004-02-03
    • US10213817
    • 2002-08-07
    • Daniel D. DowellLouis BarinagaJames P. Kearns
    • Daniel D. DowellLouis BarinagaJames P. Kearns
    • B41J2175
    • B41J2/17556
    • Apparatus for providing ink to an ink jet print head. The apparatus includes a back pressure regulator for receiving ink from an ink reservoir and for delivering ink to the print head. The regulator has a compliant wall that responds to atmospheric pressure on one side and to the pressure of the ink in the regulator on the another side. Within the regulator is a valve that regulates the pressure of the ink delivered to the print head and is actuated by the wall. Also within the regulator is a compression spring that simultaneously pre-loads the valve shut and urges the compliant wall against the atmospheric pressure. In an other aspect, an apparatus is provided with a print head having two arrays of nozzles and two back pressure regulators that independently deliver inks of different hues to separate arrays of nozzles on the print head. In still a further aspect, the apparatus performs bi-directional ink jet color printing without hue shift through positioning the regulators and print heads with respect to the printer carriage.
    • 用于向喷墨打印头提供墨水的设备。 该装置包括用于从墨水容器接收墨水并将墨水输送到打印头的背压调节器。 调节器具有柔性壁,其响应于一侧的大气压力和另一侧的调节器中的墨水的压力。 在调节器内部是一个调节输送到打印头并由壁致动的墨的压力的阀。 在调节器内部也是压缩弹簧,其同时预先关闭阀门并且推动顺应性壁抵抗大气压力。 在另一方面,一种装置设置有具有两个喷嘴阵列和两个背压调节器的打印头,所述两个背压调节器独立地将不同色调的油墨分配给打印头上的喷嘴阵列。 在另一方面,该装置通过将调节器和打印头相对于打印机托架定位而执行双向喷墨彩色打印,而不进行色调偏移。