×

METHOD AND APPARATUS FOR CONTROLLING THE TEMPERATURE OF AN ELECTRICALLY-HEATED DISCHARGE NOZZLE

  • US 20100188457A1
  • Filed: 10/16/2009
  • Published: 07/29/2010
  • Est. Priority Date: 01/05/2009
  • Status: Abandoned Application
First Claim
Patent Images

1. A method for controlling the temperature of a discharge nozzle, the method comprising:

  • providing a discharge nozzle for dispensing ink, the discharge nozzle having a thermally-conductive membrane with an integrated thin film electric heater and the thin film electric heater defining a resistance;

    receiving a quantity of ink in liquid-form at the discharge nozzle;

    energizing the thin-film heater by applying a substantially constant current to the thin-film heater;

    measuring a voltage across the heater and a current through the heater; and

    determining temperature of the heater as a function of the voltage and the current; and

    determining the temperature of the ink droplet as a function of the heater temperature.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×