Disclosed is a head alignment assembly in which a deviation of the head can be aligned conveniently with simple operation from the outside of the printer head section. The head alignment assembly includes a base plate to which at least one head unit is fixed to be exposed downward by a first head support block and a second head support block; a first fine adjustment section configured to shift the first head support block in a longitudinal direction of the head unit; and a second fine adjustment section configured to shift the second head support block in a transverse direction orthogonal to the longitudinal direction of the head unit. The first fine adjustment section includes a first push rod supported by fixed guides which are fixed on the base plate to press the first head support block; and a first handle fixed to one end of the first push rod to move the first push rod in the longitudinal direction. The second fine adjustment section includes a second push block configured to press the second head support block in the transverse direction; a second push rod supported by a plurality of fixed guides which are fixed on the base plate; and a second handle fixed to one end of the second push rod to move the second push rod in the axial direction.