| 摘要 |
PROBLEM TO BE SOLVED: To enable marking of clear characters or the like by injecting gas and removing smoke generating from a marking area. SOLUTION: A clean gas 47 (air) is injected from a gas ejecting nozzle 45 to a marking area, thereby instantly removing from the marking area the smoke or soot, etc., (50) generated from the surface of a resin package, an object 3 to be marked by laser marking. Consequently, in printing the next character, interposition is eliminated such as smoke 50 obstructing a laser beam 34, thereby enabling marking by the laser beam 34 with a prescribed light intensity and realizing a clear marking. In addition, the smoke 50 blown off by the gas 47 from the ejecting nozzle 45 is instantly removed from the working space by a ventilator 41; therefore, possibility is eliminated for the gas to enter the marking area again, so that a clear marking is attained. |
