Printhead with multiple ink feeding channels
AssigneeOlivetti Tecnost S.p.A.
InventorsRenato Conta, Alessandro Scardovi
Life of this patent
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Abstract
A thermal ink jet printhead (40) for the emission of droplets of ink on a print medium (46) comprises a reservoir (103) containing ink (142), a die (61), a slot (102) engraved in 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), each of said chambers (74) being put in fluid communication with said slot (102) through a plurality of elementary ducts (72) lying on a different plane from the bottom (67) of said chamber (74).
Claims2
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).
Dependencies are inferred from the claim text.