Ink jet recording head including beams dividing supply ports

Details Ink jet recording head including beams dividing supply ports Ink jet recording head including beams dividing supply ports

2011-05-03

2011-05-03

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S065000

Reexamination Certificate

active

07934810

ABSTRACT:
An ink jet recording head has sufficient and uniform ink refill for all orifices and separate flow paths even though the substrate has high rigidity by dividing a supply port into a plurality of ports. The substrate of the ink jet recording head has a plurality of separate flow paths corresponding to discharge pressure generating elements, a common flow path communicating with the separate flow paths, an ink supply port communicating with the common flow path and supplying ink to the common flow path, and a plurality of beam portions dividing the ink supply port. A recess is formed on the common flow path, extending to the separate flow paths formed nearest to the beam portion.

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