Patent ID: 8465127

Claim:
A liquid ejecting head unit comprising: a liquid ejecting head including a nozzle formation surface in which a nozzle row configured by arranging a plurality of nozzles that eject a liquid in a row is formed; and a head anchoring member to which the liquid ejecting head is anchored with intermediate members provided therebetween, wherein the liquid ejecting head includes intermediate member anchoring portions, to which the intermediate member is anchored and abutted thereto, at both ends with a main head unit therebetween; intermediate member attachment holes for attaching the intermediate members are provided in each of the intermediate member anchoring portions in the center of the width direction that is orthogonal to the nozzle row in the liquid ejecting head, and head-side positioning holes that serve as a reference for positioning relative to the intermediate member are provided in the intermediate member anchoring portion in positions that are distanced from a centerline of the width direction; intermediate member-side positioning holes that serve as a reference for positioning relative to the intermediate member anchoring portions are provided in each intermediate member in a position that corresponds to the head-side positioning hole of the corresponding intermediate member anchoring portion; the intermediate members are anchored to the intermediate member anchoring portions on both sides so as to be oriented symmetrically to each other, in a positioned state in which the positions of the intermediate member-side positioning holes are aligned with the head-side positioning holes; the head anchoring member is anchored to the intermediate members by the head anchoring bolts, and the intermediate members are anchored to the intermediate member anchoring portions by spacer anchoring bolts.