Patent ID: 8342646

Claim:
An ink jet print head comprising: a first black ink ejection chip and a second black ink ejection chip each including a black ink ejection port row having a plurality of ejection ports through which black ink is ejected; a color ink ejection chip including a plurality of color ink ejection port rows each having a plurality of ejection ports through which color ink is ejected; and a support member that supports the first black ink ejection chip, the second black ink ejection chip and the color ink ejection chip, wherein each of the plurality of ejection ports through which the black ink is ejected has a larger ejection amount than each of the plurality of ejection ports through which the color ink is ejected, and at least one black ink ejection port row is provided in each of the first and second black ink ejection chips, and the first and second black ink ejection chips are arranged on respective sides of the color ink ejection chip.