| 摘要 |
An ink jet printing apparatus is provided to increase resolution by minimizing the size of droplet and to improve printing accuracy by minimizing influence including manpower, adhesive force or resistance of air acting between nozzle and droplet. An ink jet printing apparatus comprises an injector(10) which sprays droplets of solution to the printing spot of a printing object; and a beam irradiator(30) which heats up a part of droplets and evaporates it by irradiating the light which is incident to the droplets at an acute angle about the line connecting the injector and the printing spot before the sprayed droplets reach the printing spot, and in that way accelerates the droplets along the extended line. The beam irradiator includes two or more light sources(31,32,33) which irradiate the light to the droplets in different directions.
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