Systems and methods for heating and measuring temperature of print head jet stacks

A print head, comprising:

• a jet stack;
• a jet stack heating and temperature measuring element that is thermally connected to the jet stack, the jet stack heating and temperature measuring element including:
• a first, etched copper layer having heat spreading characteristics through the first layer thereby avoiding the use of a heat sink, and including a resistive heat source having etched copper traces formed by etching the copper of the first layer, the restive heat source electrically connected in series to a voltage source and a switch;
• an electrically insulative layer on a back side of the first copper layer;
• and
• a second, etched copper layer on a side of the electrically insulative layer opposite the first copper layer, the second copper layer having a temperature sensing element formed of etched traces formed by etching the copper of the second layer, the temperature sensing element to sense a temperature of the print head based upon a change in resistance of the temperature sensing element, the temperature sensing element connected in series with a voltage source and a transistor.