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Visual performance information of an ejection device

  • US 10,335,819 B2
  • Filed: 07/31/2014
  • Issued: 07/02/2019
  • Est. Priority Date: 07/31/2014
  • Status: Active Grant
First Claim
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1. A print cartridge, comprising:

  • a housing;

    an ejection device mounted to the housing, the ejection device to dispense a composition;

    an array mounted to the housing and comprising a visible marker, the visible marker to store information regarding performance of the ejection device; and

    a circuit coupled to the ejection device, the circuit to;

    measure performance of the ejection device and create information regarding the measured performance of the ejection device; and

    actuate the visible marker to store the information regarding the measured performance of the ejection device in the visible marker, the visual marker having a physical characteristic to be changed in response to the actuation by the circuit, the changed physical characteristic persistently storing, in the visible marker, the information regarding the measured performance and being visually perceptible from outside the housing.

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