Ink jet recording head with ink filter formed of a plurality...

Details Ink jet recording head with ink filter formed of a plurality... Ink jet recording head with ink filter formed of a plurality...

2011-03-08

2011-03-08

Shah, Manish S (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S065000, C347S071000

Reexamination Certificate

active

07901064

ABSTRACT:
An ink jet recording head includes: a substrate; a plurality of ink discharge ports formed to a front face side of the substrate, and a plurality of ink flow paths communicating with the ink discharge ports; an ink supply opening extending through the substrate and communicating with the plurality of ink flow paths; and a filter formed in an opening portion of the ink supply opening arranged in the front face side of the substrate, the filter being constituted of two or more stacked films having formed therein a plurality of opening portions. In this case, the stacked films are arranged with a spacing therebetween.

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