| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for printing an identifier capable of preventing from printing it at a wrong position in printing the idetifier on a printed-circuit board. <P>SOLUTION: In printing the identifier such as a manufacturing number by a laser marker 7 at the predetrmined position of the printed-circuit board 11 positioned on an XY-stage 8, the right direction of an installation of the printed-circuit board can be checked by detecting a different positional relation of the positioning mark when the printed-circuit board is positioned in a wrong direction to the laser marking device so that the direction, the right side, the back side, or the like can be detected with the positional relation of a plurality of positioning marks provided on the printed-circuit board 11 to the positional relation on the printed-circuit board determined asymmetric or the like. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
