Nozzle guard for an ink jet printhead

Details Nozzle guard for an ink jet printhead Nozzle guard for an ink jet printhead

2005-04-05

2005-04-05

Hsieh, Shih-Wen (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S021000

Reexamination Certificate

active

06874868

ABSTRACT:
A nozzle guard (80) for an ink jet printhead includes a body member (82) mountable on a substrate (16) which carries a nozzle array (14). The body member defines a plurality of passages (84) through it such that, in use, each passage (84) is in register with a nozzle opening of one of the nozzles of the array (14). The body member (22) further defines fluid inlet openings (88) for directing fluid through the passages (84), from an inlet end of the passages (84), for inhibiting the build up of foreign particles on the nozzle (14).

REFERENCES:
patent: 4417259 (1983-11-01), Maeda
patent: 4736212 (1988-04-01), Oda et al.
patent: 5665249 (1997-09-01), Burke et al.
patent: 5877788 (1999-03-01), Haan et al.
patent: 5929877 (1999-07-01), Hetzer et al.
patent: 6390591 (2002-05-01), Silverbrook

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