Ink detection circuit and ink cartridge

Ink detection circuit and ink cartridge

  • CN 202,169,767 U
  • Filed: 07/19/2011
  • Issued: 03/21/2012
  • Est. Priority Date: 07/19/2011
  • Status: Active Grant
First Claim
Patent Images

1. the ink detection circuit comprisesIt is characterized in that:

  • First, second electrode, said first electrode grounding, said second electrode connects power supply, and when being covered with ink between said first, second electrode, it is conducting between the two;

    Switching device, the detection signal of said second electrode exports the control end of said switching device to;

    Alarm appliance, said alarm appliance and said switching device are connected between power supply and the ground wire.

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