There is disclosed an ink jet printhead which comprises a plurality of nozzles and one or more heater elements (10) corresponding to each nozzle. Each heater element (10) is configured to heat a bubble forming liquid in the printhead to a temperature above its boiling point to form a gas bubble therein....http://www.google.es/patents/US7306326?utm_source=gb-gplus-sharePatente US7306326 - Thermal ink jet printhead with low heater mass
