Patent ID: 6719913
Filing Date: 2004-04-13
Classification: B41J

Abstract:
Method for manufacturing a thermal ink jet printhead (40) comprising a reservoir (103) suitable for containing ink, a die (61), a slot (102) etched into said die (61) and a plurality of ejectors (73), each of which in turn comprises a chamber (74), a resistor (27) and a nozzle (56), characterized in that it comprises the steps of:(205) etching a plurality of elementary ducts (72), a tank (63) and a basin (76) fluidly connected with said slot (102); (213) covering said plurality of elementary ducts (72) and said tank (63) by means of a layer (107); and (214) producing in said layer (107) said chamber (74), fluidly connected with said plurality of elementary ducts (72) and with said tank (63).