I am trying to print out some of my school work in black ink only, but it keeps telling me because the blue is out it will not print. Do I have to replace the blue, I do not print in color anyway, I always use the draft print to save ink. I print a lot of stuff for school, but now it won’t let me. Anyone know if I really have to go out and buy a color cartridge? My printer is an Epson Stylus CX7400.

Lovie