BC-31e Color BJ Cartridge:
Replacing the BC-31 Color Cartridge.

Use the BC-31e cartridge for color printing projects. It can be used with the BC-30e Black BJ cartridge for black and color printing, or with the BC-32e Photo BJ cartridge for photo printing. The BC-31e contains the print head unit and three replaceable BCI-3e color tanks (cyan, magenta, yellow), also available separately. If you run out of a color, simply replace the individual tank.