Patent ID: 8054521

Claim:
A method for adjusting a galvano scanner system, comprising: arranging a two-dimensional position sensor on a surface to be scanned by a galvano scanner, in a scanning center position that corresponds to an origin position of the galvano scanner; inputting to the galvano scanner an origin position command for positioning the galvano scanner in the origin position, and positioning the galvano scanner in the origin position on the basis of sensor output from a scanner position sensor mounted on the galvano scanner; detecting with the aid of the two-dimensional position sensor a light spot of laser light produced by the galvano scanner positioned in the origin position; monitoring a first difference between the output of the two-dimensional sensor and the origin position output of the two-dimensional sensor obtained for the case in which the center of the light spot is positioned in the center of the detection surface of the two-dimensional position sensor; driving the galvano scanner so that the first difference is equal to or less than a specific preset value; and using as an offset adjustment value a second difference, determined in relation to the origin position command, of the position command inputted to the galvano scanner when the first difference has reached the specific value or less.