| http://www.w3.org/ns/prov#value | - Each ink flow passage 78 bi (i=1 to n, n is an integer), as shown in FIG. 1B, is formed in parallel to each other by two partition wall members 78 ai (i=1 to n, n is an integer) provided in opposite at the position opposing the electro-thermal conversion device board 76 in the ink ejection member 78 and the electro-thermal conversion device board 76.
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