Digital BW, The Print

I'm new to this forum.  

Having a big problem getting a "reasonable" print on my new K7 inkset
using the latest QTR RIP and profiles.  Printing on Epson Enhanced
Matte and tried Hahnamule PhotoRag 308.  The blacks are "smokey" (to
quote Bill Atkinson).  They don't even measure up to the sample prints
I got from Inkjetmall.  I have followed instrucitons on using K7 inks
per the Inkjetmall web site.  Nozzle check and test pattern all work fine.

I'm stumped...any ideas?

Milt