Digital BW, The Print

First of all, excuse me because of my poor english.

It´s the first time that I enter here. So hello everybody !

I,ve bought the new EPSON R800 so that I can get color copies. But I 
also like B&W, and I want an other printer only for that. I don't 
want to expend too much money. ( A4 size is enough )

Does anyone know which printer I could buy ? (so that I coul print 
with Piezography inks).

Thank you.