While this may be O.K. as a one time deal, ($1.50 + cost of sending them your 2 cartridges), cheap ink is readily available for many printers.
For my Epson 600 and 860, I've been using:
megatoners----Epson Ink
and highly recommend them. I first spotted them on e8ay, and saw something like 3000+ positives, and 2 negatives, so checked them out. Wow!. Brand new cartridges, (not refills), cost $2.40 for black, and $4.99 for color. Free shipping with any mixed order of 10 or more, or $3.95 shipping if ordering less than 10. They come in retail boxes just like Epson uses, including the foil pack, and yellow peal off strip. Many other brand are similiarly priced. Click on printer toner.