An ink jet printer ejects ink droplets of a plurality of sizes based on image data, and prints dots of a plurality of sizes corresponding to the ink droplets of the plurality of sizes for recording the image. In the ink jet printer, in order to print a smoothing dot close to a normal dot, pulse voltage...http://www.google.com.au/patents/US7201459?utm_source=gb-gplus-sharePatent US7201459 - Ink jet printer capable of forming high definition images
