Cavity unit and ink-jet recording head and apparatus

Details Cavity unit and ink-jet recording head and apparatus Cavity unit and ink-jet recording head and apparatus

2006-09-05

2010-11-23

Meier, Stephen D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

Reexamination Certificate

active

07837315

ABSTRACT:
A cavity unit for use in an ink jet recording head, including plate members which stacked on each other and having an ink-introducing passage, a filter portion which removes foreign matters from introduced ink, two communication chambers which communicate with each other through the filter portion, and nozzles each of which ejects a droplet of the ink. The plate members include a filter plate including the filter portion, and a guide-passage plate which is provided adjacent the filter plate and which has, on an upstream side of an upstream-side one of the two communication chambers with respect to an ink-flow path, a guide passage which causes the introduced ink to flow, before the ink flows into the upstream-side communication chamber, in a direction along one surface of the filter plate.

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