IMPROVEMENTS IN OR RELATING TO INKJET PRINTERS
    2.
    发明公开
    IMPROVEMENTS IN OR RELATING TO INKJET PRINTERS 有权
    关于喷墨打印机的改进或与喷墨打印机有关的改进

    公开(公告)号:EP2640577A1

    公开(公告)日:2013-09-25

    申请号:EP11788217.5

    申请日:2011-11-21

    IPC分类号: B41J2/175

    摘要: The invention provides a method and system for determining fluid levels in an inkjet printer. A non-contact sensor array is provided external to the container in which the levels are to be determined and each sensor in the array is sequentially switched into a sensing circuit until a change in capacitance is noted. The sensing circuit is preferably a frequency oscillation circuit whose frequency is defined by circuit capacitance.

    摘要翻译: 本发明提供了一种用于确定喷墨打印机中的液位的方法和系统。 非接触式传感器阵列设置在容器的外部,其中要确定电平,并且将阵列中的每个传感器顺序地切换到感测电路中,直到注意到电容的变化。 感测电路最好是频率振荡电路,其频率由电路电容确定。