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...http://www.google.com.tw/patents/US7052116?utm_source=gb-gplus-share專利 US7052116 - Printhead with multiple ink feeding channels
