Nozzle guard alignment for ink jet printhead

Details Nozzle guard alignment for ink jet printhead Nozzle guard alignment for ink jet printhead

2005-01-04

2005-01-04

Nguyen, Thinh (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S022000, C347S067000

Reexamination Certificate

active

06837567

ABSTRACT:
A printhead for an ink jet printer with an array14of ink ejection nozzles22formed from MEMS techniques. To protect the delicate nozzle structures, a nozzle guard80covers the exterior surface of the array14. A corresponding array of apertures84is formed in the guard80. To attach the guard80to the silicon substrate16carrying the nozzles22, alignment formations148configured for engagement with complementary formations on a nozzle guard80. For precise registration between the nozzles22and the respective apertures84in the guard80, the alignment formations148may be formed using the same etching and deposition techniques used to form the nozzles22.

REFERENCES:
patent: 4612554 (1986-09-01), Poleshuk
patent: 4623904 (1986-11-01), Conta et al.
patent: 5734394 (1998-03-01), Hackleman
patent: 6270191 (2001-08-01), Morikoshi et al.
Derwent Abstract Accession No. 2000-358645/31, Class P75, T04, JP 2000117976 A (Sony Corp) 25.4.00.

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