Thermal inkjet printhead on a metallic substrate

Details Thermal inkjet printhead on a metallic substrate Thermal inkjet printhead on a metallic substrate

2011-03-08

2011-03-08

Do, An H (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C428S432000

Reexamination Certificate

active

07901057

ABSTRACT:
A printhead and method of forming the printhead are provided. The method includes forming an ink feed passage through a print head substrate by providing a metallic substrate having a first surface and a second surface; providing an ink ejector structure on a first surface of the metallic substrate; providing a mask over the second surface of the metallic substrate to define the ink feed passage; and forming the ink feed passage from the second surface of the metallic substrate using a liquid etchant.

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patent: 6969158 (2005-11-01), Taira
patent: 2008/0007927 (2008-01-01), Ito et al.

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