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DISPENSING SYSTEM AND JUDGING METHOD OF DISCHARGE CONDITION THEREOF

  • US 20090071242A1
  • Filed: 09/17/2008
  • Published: 03/19/2009
  • Est. Priority Date: 09/19/2007
  • Status: Abandoned Application
First Claim
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1. A dispensing system comprising:

  • a first flow path coupled with a liquid supply source;

    a flow-rate detector provided on the first flow path;

    a branch section branching the first flow path;

    N pieces of second flow paths, branched from the first flow path in the branch section, each of the second flow paths having a discharge head for a liquid at an end thereof;

    N pieces of valves capable of opening and closing the N pieces of second flow paths individually;

    a first flow-rate calculator configured to detect a flow rate of the liquid by the flow-rate detector under a condition in which all the valves are open;

    a first judgment section configured to judge a discharge condition of the liquid by comparing the flow rate detected by the flow-rate detector with a setting flow rate conducted from a total flow rate to be discharged from all the discharge heads;

    a second flow-rate calculator configured to detect respective flow rates of the liquid by the flow-rate detector under conditions that, when the N pieces of the second flow paths are divided into N pieces of groups each having a same number of at least one and at most (N−

    1) pieces of the second flow paths, one or more of the valves corresponding to the second flow paths included in each of the groups are open; and

    a second judgment section configured to identify any of the second flow paths that are clogged or have possibility of being clogged based on the respective flow rates of the groups of the second flow paths detected by the second flow-rate calculator.

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