Thanks for replying and helping out,Steve. I have the latest drivers and they do not assist in identifying the empty cartridge. I also downloaded the manual as Kees suggested and it instructs you on how to do everything you've ever wanted to know about installing, replacing, cleaning and aligning the cartridges, everything but detecting which one is out of ink! A poster, leroyal, from FixYa.com simply suggested printing a "text only" document. When it printed ok, I changed the color cartridge and was back in business. It seemed like a simple enough problem, I had just forgotten how to identify the empty one. I guess I've become spoiled by using Epson printers which not only detect and report empty cartridges, but also monitor the ink levels to assist in ordering new ones. Thanks again!