This present invention is embodied in a low-cost printing system including a printhead and an ink composition that provides photographic-quality resolution. The printhead of the present invention includes a high-density array of drop generators that eject ink drops having a low drop weight and that operate...http://www.google.com/patents/US6536878?utm_source=gb-gplus-sharePatent US6536878 - Ink jet drop generator and ink composition printing system for producing low ink drop weight with high frequency operation
