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    • 1. 发明授权
    • Out-of-ink sensing system for an ink-jet printer
    • 用于喷墨打印机的墨水感测系统
    • US5844579A
    • 1998-12-01
    • US566819
    • 1995-12-04
    • John A. BarinagaJames M. CameronJohn A. Underwood
    • John A. BarinagaJames M. CameronJohn A. Underwood
    • B41J2/125B41J2/175B41J2/195
    • B41J2/1752B41J2/17513B41J2/17566B41J2002/17573B41J2002/17576
    • An ink supply for an ink-jet printer is provided with a main reservoir, which is typically maintained at ambient pressure. The main reservoir is coupled to a variable volume chamber via a one-way valve which allows the flow of ink from the reservoir to the chamber and prevents the flow of ink from the chamber to the reservoir. The chamber is coupled to a fluid outlet which is normally closed to prevent the flow of ink. However, when the ink supply is installed in a printer, the fluid outlet establishes a fluid connection between the chamber and the printer. The chamber is part of a pump provided with the ink supply that can be actuated to supply ink from the reservoir to the printer. The volume of the chamber can be monitored during actuation of the pump to detect when the quantity of ink within the ink supply is low.
    • 用于喷墨打印机的墨水供应装置设置有主储存器,其通常保持在环境压力下。 主储存器通过单向阀连接到可变容积室,该单向阀允许墨从储存器流到腔室并防止墨从腔室流到储存器。 腔室联接到通常关闭的流体出口以防止墨水流动。 然而,当墨水供应安装在打印机中时,流体出口在腔室和打印机之间建立流体连接。 该室是设置有墨水供应源的泵的一部分,其可以被致动以将油墨从储存器供应到打印机。 在泵的启动期间可以监测室的体积,以检测墨水供应中的墨水量何时低。