| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet recording head that has a channel structure capable of improving discharging power, filter performance and discharging frequency characteristics even when ink is made into small liquid drops. SOLUTION: A channel structure 3 capable of decreasing the crosssectional area of a flow path intersecting at right angles a liquid flow direction and changing the area (shape) is provided in a feed path 5. The channel structure 3 consists of a flat square pole 3a being a first structure blocking a part of the feeding path 5, and a plurality of columns 3b being a second structure blocking a part of the feeding path 5. The square pole 3a is formed by the whole width of the feed path 5 on a base sheet 34 and blocks the base sheet 34 side of the feed path 5. A plurality of the columns 3b are symmetrically arranged around the center of the feed path 5 on the square pole 3a, and are extended from the square pole 3a to a discharging opening plate 8 in the height direction of feed path 5. COPYRIGHT: (C)2004,JPO
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