Each nozzle array on a print head 28b has a plurality of nozzles arranged along sub-scanning direction for discharging a same ink, and at least a pair of nozzle arrays that discharge different inks (a leading nozzle array FN and a trailing nozzle array RN) are arranged in a staggered manner. In an interlace...http://www.google.com/patents/US7048357?utm_source=gb-gplus-sharePatent US7048357 - Printing using a print head with staggered nozzle arrangements
