A printhead, a scanning type inkjet image forming apparatus having the same, and a method of performing a printing operation with a high resolution. Separate N nozzle units are disposed in the printhead such that images can be printed with higher resolution. In addition, the printing operation can be...http://www.google.de/patents/US7637590?utm_source=gb-gplus-sharePatent US7637590 - Printhead, scanning type inkjet image forming apparatus having the same, and method of performing a printing operation with high resolution
