This invention provides for a nozzle arrangement for a printhead. The nozzle arrangement includes a substrate that defines an ink inlet passage. A nozzle plate is arranged on the substrate and defines an ink chamber in fluid communication with the ink inlet passage and a nozzle aperture in fluid communication...http://www.google.fr/patents/US7771015?utm_source=gb-gplus-shareBrevet US7771015 - Printhead nozzle arrangement having a looped heater element
Printhead nozzle arrangement having a looped heater element