Thermal inkjet print head

Details Thermal inkjet print head Thermal inkjet print head

2008-09-12

2011-11-29

Mruk, Geoffrey (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S054000

Reexamination Certificate

active

08066356

ABSTRACT:
A thermal inkjet printhead is provided including a substrate, and a chamber layer, which is stacked on the substrate. The chamber layer includes an ink chamber that is filled with ink supplied from an ink feed hole. The printhead includes a heater inside the ink chamber that heats the ink, an island, which is formed on the substrate at an ink inlet port of the ink chamber, and a nozzle layer, which is stacked on the chamber layer, including a nozzle for ejecting the ink. The walls of the ink chamber and the island that face each other are symmetrical with respect to the center of the nozzle.

REFERENCES:
patent: 5883650 (1999-03-01), Figueredo et al.
patent: 6409312 (2002-06-01), Mrvos et al.
patent: 2003/0117462 (2003-06-01), Cleland et al.
patent: 10-2002-0025588 (2002-04-01), None
English language abstract of KR 10-2002-0025588, published Apr. 4, 2002.

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