Patent ID: 7571997
Filing Date: 2009-08-11
Classification: B41J

Abstract:
1. An inkjet recording head comprising: a plurality of nozzles that are arranged in a matrix pattern and discharge ink droplets; a plurality of pressure chambers that are communicated with each of the nozzles and into which ink is filled; a vibration plate forming a portion of the pressure chambers; a piezoelectric element that displaces the vibration plate; an ink pool chamber that is provided at a side opposite to the pressure chambers with the vibration plate placed between the ink pool chamber and the pressure chambers and which accumulates ink supplied through ink supply paths communicated with each pressure chamber; wherein the ink pool chamber is provided with an injection port that injects ink into the ink pool chamber; a plurality of supply openings of the ink supply paths provided at an undersurface of the ink pool chamber; and a current plate, which is provided along the supply openings, that forms a channel for ink injected from the injection port, the current plate extending from the undersurface of the ink pool chamber and into the ink pool chamber, and gaps are formed between the current plate and a top panel which faces a bottom of the ink pool chamber.