From what I understand, the original Piezography BW inks and the new PiezoTone inks are not compatible, and shouldn't be mixed. You should be able to find more information on their website.
Message
Re: Mixing Cone Ink Sets
2004-03-09 by yes
Yahoo Groups archive
Message
2004-03-09 by yes
From what I understand, the original Piezography BW inks and the new PiezoTone inks are not compatible, and shouldn't be mixed. You should be able to find more information on their website.