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    • 10. 发明授权
    • Dual reservoir and valve system for an ink jet head
    • 用于喷墨头的双储存器和阀门系统
    • US5189438A
    • 1993-02-23
    • US799745
    • 1991-11-22
    • Nathan P. HinePaul A. HoisingtonCharles W. Spehrley, JrMelvin L. BiggsRichard Carden
    • Nathan P. HinePaul A. HoisingtonCharles W. Spehrley, JrMelvin L. BiggsRichard Carden
    • B41J2/175B41J2/19
    • B41J2/175B41J2/19B41J2/17596
    • In the representative ink supply system described in the specification, continuous circulation of ink in an ink jet head is accomplished by providing two reservoirs connected to each ink jet orifice through corresponding passages so that ink flows continuously from a high-level reservoir past the orifice to a low-level reservoir. The difference between the levels of ink in the reservoirs is maintained relatively constant by inertial pumping during reciprocal motion of the ink jet head or by pressure transfer of ink from one reservoir to the other reservoir. Cross-flow purging of air or debris from the ink jet head is effected by covering the ink jet orifices and applying air pressure to one reservoir to cause ink and any trapped air or debris to flow from the head to the other reservoir. A pump responsive to reciprocal motion of the ink jet head generates a positive air pressure which is applied during purging and a negative air pressure which is applied to a deaerator for removing dissolved air from the ink.
    • 在本说明书中描述的代表性供墨系统中,油墨在喷墨头中的连续循环通过提供通过相应通道连接到每个喷墨孔的两个储存器来实现,使得墨水从高级储存器连续流过孔, 一个低层次的水库。 通过在喷墨头的往复运动期间的惯性泵送或通过将油墨从一个储存器压力转移到另一储存器,储存器中的墨水量之间的差异保持相对恒定。 通过覆盖喷墨孔并将空气压力施加到一个储存器以使油墨和任何被捕获的空气或碎屑从头部流到另一个储存器来实现来自喷墨头的空气或碎屑的交叉流吹扫。 响应于喷墨头的往复运动的泵产生在吹扫期间施加的正空气压力和施加到脱气器的负空气压力,以从油墨中除去溶解的空气。