| 摘要 |
PROBLEM TO BE SOLVED: To circulate a liquid in the vicinity of discharge ports, and to suppress generation of crosstalk between the discharge ports.SOLUTION: A liquid discharge head includes: a piezoelectric block body which has a plurality of pressure chambers and at least one through-hole, and in which a liquid can circulate in the plurality of pressure chambers and the through-hole; a discharge port forming member which has a plurality of discharge ports from which the liquid is discharged; and a flow passage forming member which is sandwiched between the piezoelectric block body and the discharge port forming member. The flow passage forming member has: a plurality of liquid communication holes 741, 743 communicating with the pressure chambers and the discharge ports; and a plurality of circulation flow passages 744 for communicating the through-hole and the liquid communication holes 741, 743. The plurality of liquid communication holes 741, 743 are divided into a plurality of liquid communication groups 747, and each of the liquid communication hole groups 747 is associated with one of the circulation flow passages 744, and connected only to the associated circulation flow passage 744.SELECTED DRAWING: Figure 12 |
