Patent ID: 8376521

Claim:
A head attachment member in which a plurality of liquid ejection heads is attached with respect to a support drum for supporting an ejection-receiving medium and rotating about a rotation shaft, the head attachment member comprising: a plurality of head attachment parts each having a first attachment surface to which a plurality of head groups are attached, the head groups each including the liquid ejection heads; and a base part having second attachment surfaces to which the head attachment parts are attached, the second attachment surfaces each having a different tilt angle, a tilt angle of the head attachment member being adjustable about a boundary line of mutually adjacent ones of the second attachment surfaces, the first attachment surface of each of the head attachment parts being arranged so as to be parallel to a tangent line which is tangent to a peripheral surface of the support drum at an intersection point of a line segment which connects the center of the support drum and the center on the first attachment surface between the head groups attached to the first attachment surface, and the second attachment surfaces being integrally and continuously formed.