There is disclosed an ink jet printhead that has a plurality of nozzles 3 and a bubble forming chamber 7 corresponding to each nozzle respectively. At least one heater element 10 suspended in each bubble forming chamber 7 to heat a bubble forming liquid 11 to a temperature above its boiling point to...http://www.google.com/patents/US7111926?utm_source=gb-gplus-sharePatent US7111926 - Thermal ink jet printhead with rotatable heater element
