Ink-jet head with ink blockage prevention device

Details Ink-jet head with ink blockage prevention device Ink-jet head with ink blockage prevention device

2008-07-22

2008-07-22

Huffman, Julian D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S071000, C347S092000

Reexamination Certificate

active

11236796

ABSTRACT:
An inkjet head includes a plurality of nozzles, a plurality of pressure chambers corresponding to the nozzles and connected to the nozzles, a common ink chamber for supplying ink to the pressure chambers, a supply passage for supplying ink to the common ink chamber, a plurality of connection passages corresponding to the respective pressure chambers, one ends of which are connected to the common ink chamber and the other ends of which are connected to the respective pressure chambers, a first member forming the common ink chamber, and a second member connected to the first member and having openings of the connection passages aligned in a surface at a side of the first member. A projection of an opening positioned at a most downstream end in an ink flowing direction from the supply passage in the common ink chamber, on the first member in a connecting direction straddles a contour of the common ink chamber.

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