The object of the present invention is to provide an ink jet printing apparatus which can realize both a high speed printing and a high quality printing without color deviations when each of the print areas is printed in a plurality of scans by a plurality of print heads ejecting different kinds of ...http://www.google.de/patents/US6789867?utm_source=gb-gplus-sharePatent US6789867 - Ink jet printing apparatus and ink jet printing method
