Summary: I had been relying on an manufacturer that supplied me sponge-type refillable cartridges and their inks (for refilling) for about 3 years. To my disappointment they announced they had reformulated their ink. I believe in mixing ink formulation is "bad" for printer. Typically would be easier to clean out the existing refillable cartridge, but cartridge have sponge, which means a lot of effort and money (for cleaner) to clean ink out.
This printer seems to have some problems, Not reliable
4 September 2007
Summary: I would not buy this product again. This product looks good and is advertised as a good reliable inexpensive printer. It seems to have a very short usable life. It was a mistake to purchase it in the first place.
Summary: Ink too expensive because the printer refuses to print when one cartridge is maxed out (it counts the letters, evidently)I filled mine with 3 full colored ink cartridges, and the ink went down the same rate as the black, even though I never printed color.