I purchased an Epson WorkForce 500 Printer, copier, (all in one type unit). (Purchased from a Target Store in Wisconsin.) I set it up with using Just the black ink. I don't ever use the color cartridges. It comes with seperate colors (yellow, red and blue), and the black cartridge. Even though the printer is rather slow, it seemed to work okay. Then one day it would not print. A message appeared that one of the color cartridges was empty. In other words, if one of the color cartridges is empty, the whole system shuts down and it is not... read full review »