Digital BW, The Print

I've been using my EPSON R800 for two weeks, and I'm satistied with 
its results in color. But when I print B&W (most of the time), the 
prints are coldish. And I don't think this is the best way. In my 
opinion all the inks are used, and I don't know if it´s posible to 
print BO method. If not, does anyone know which would be the best way?

Image Print, maybe? Other inks?

Thank you, and sorry because of my poor english.