Epson printers require at minimum, cartridges that appear to the printer
to have ink still in them for the printer to continue working.
I suggest to people if they tend no use only black for printing, and
already own an inkjet (as opposed to a B&W aser printer) that they
refill their color cartridge with something like windex or dilute glycol
or glycerol mixture and have the cartridge chip reset. Resetters sell
for between $5 and $15 US "around the internet" Just get the one
correct for the cartridge type you use.
The other option is to use the "ink freezing" feature from the website
shown below. In most cases this needs to be done prior to the cartridge
reading empty. Also, should the cartridge run out of ink, the head may
clog with the ink residue and be more difficult to rehydrate and make
funtional should you later decide to print with color again.
http://www.ssclg.com/epsone.shtml
Art