Patent ID: 7665825

Claim:
An ink jet recording head, comprising: a substrate on which a plurality of ink supply openings are formed; a first recording element array formed of a plurality of recording elements arranged at a predetermined interval in rows on both sides of a first supply opening of said plurality of ink supply openings on said substrate so that said rows sandwich said first supply opening; a second recording element array formed of, at least at one of both sides of a second supply opening of said plurality of ink supply openings, recording elements located relatively closer to said second supply opening and recording elements located relatively far from said second supply opening arranged in a staggered manner at an arrangement interval narrower than that of said recording elements of said first recording element array; and first and second ink flow path arrays formed of ink flow paths arranged in rows corresponding to said plurality of recording elements, for guiding ink from said ink supply openings to said recording elements, wherein said first ink flow path array corresponds to said first recording element array, and said second ink flow path array corresponds to said second recording element array, and wherein a distance (La) between one end portion of said ink flow paths and another end portion thereof across said first supply opening in said first ink flow path array is substantially equal to a distance (Lb) between one end portion of said ink flow paths corresponding to the recording elements located relatively far from said second supply opening and another end portion thereof across said second supply opening in said second ink flow path array.