| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid discharge head which suppresses the entry of a liquid and prevents dropping of a liquid collected in a part where a plurality of positioning holes are arranged in a row. SOLUTION: An inkjet head has a flow path unit 4 prepared by laminating eight plates 22-29. Holes 2a-2g are formed in both longitudinal ends of seven plates 22-28, respectively, except a nozzle plate 29. There formed are three holes 3a-3c having a diameter less than√3/2 times the largest diameter of the holes 2a-2g, respectively, in both longitudinal ends of the nozzle plate 29. The center of gravity G of a triangle formed by three line segments L1-L3 which connect the centers of the three holes 3a-3c is mutually overlapped with the center C of the holes 2a-2g with respect to laminating direction. COPYRIGHT: (C)2009,JPO&INPIT
|
