From Software Imaging:
InkSaver allows you to control the amount of ink used by your inkjet printer, making your ink cartridges last longer. Using patent pending software algorithms, InkSaver optimizes printer data so that your printer uses less ink--even when printing at your inkjet's highest resolution. InkSaver works with all printer brands including HP, Epson, Canon, Lexmark. The program also works with any type of ink or refill kit. An intuitive savings estimator lets you see how much money you can save. You can configure your ink savings once and never worry about it again, or you can adjust your savings level for every document you print.