Correcting scanning errors in a shuttle scanner

摘要

A method for correcting scanning errors in a shuttle scanner is described. A pattern sheet on which pattern data having a specified shape are recorded is scanned. Errors for incline of the pattern data are corrected by using pattern data of a straight line form among the scanned pattern data having the specified shape. Then, errors for distance between bands are corrected by using pattern data of a specified shape. Accordingly, since the errors for incline and the errors for distance between the bands can be corrected by using a computer program, correcting the errors of the pattern data is very simple. Furthermore, even if the scanner is subjected to an impact from an exterior, correcting the errors for incline and the errors for distance between the bands can be promptly performed.