| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiarray type multicolor ink jet printing head having an ink supply route simple in structure and easy to produce. SOLUTION: A multiarray type multicolor ink jet printing head consists of a main substrate 65, the ink tank unit 66 arranged to one end of the substrate, four ink supply channels 68 (68-1, 68-2) communicating with the ink tanks 67Bk, 67Y, 67M, 67C of the tank unit and circulating as shown by arrows P, Q, R and the head chips 50 arranged zigzag thereon in two rows. The arranging order along the head chip arranging direction (the direction from above to below in the drawing) of the ink supply channels at every four color inks of black(Bk), yellow(Y), magenta(M) and cyan(C) supplied to two rows of the head chips 50 is made reverse mutually with respect to four ink supply channels 68-1 being forward channels and four ink supply passages 68-2 being backward channels to constitute the ink supply channels so that they are merely bent on a plane at the reciprocal folding-back point shown by the arrow Q without crossing each other. |
