Abstract: A device for adjusting the position of a printer head of a barcode printer includes a casing mounted to the barcode printer and a base movably coupled to the casing. A slide board is slidably supported on the base and carries the printer head. A first adjuster is arranged between the slide board and the base to selectively move and thus adjust the position of the printer head in the longitudinal direction. A second adjuster couples the first adjuster to the base to selectively move the slide board on the base in the transverse direction, which in turn adjusts the transverse position of the printer head. A third adjuster couples the base to the casing to selectively move the base with respect to the casing and thus adjust the position of the printer head in the vertical direction.