Ine fact I'm using a Epson R1900 printer : great fot colour printing but no grey inks. I have one photo black ink (for glossy papers) and one matte black (for matte paper). If I do b&w with the epson driver it uses colour inks to do the greys, and the result isn't grey but something between rd and green grey. Even if I set up the driver for greyscale it uses colour inks (no black only in that driver) that's why I use QTR. And In QTR for the R1900 there are only profiles for Enhanced Matte paper. In France we do not have enhnced matte but archival mat. I thinks that there are different names for the same paper depending on where one is located. If I do a curve with photo black ink (for glossy papers or RC papers) it's not really black ot grey, but something grey. I need to use the matte black ink to have a better greyscale, and on some pictures, it's still too warm and I need to use also the "cool" curve in addidtion, at around 15-25 %. If I use that ink csetup on QTR on baryta or glossy paper, I need to varnish the picture after.