QTR-Quadtone RIP

I have made a lot of test prints and always the same. B&W tiff printed 
from Photoshop with Advanced B&W look OK, the same tiff printed from 
QTR is VERY light, like washed up. I check this with matt and photo 
black ink. 

For last test I have printed patern with little squers filed from L100 
to L00. QTR setup: UCpk-raw-neut, 720 dpi, Uni-directional, Photo Ink. 

On print form QTR L100 squer looks like L50 from Photoshop. Inspite of 
choosing "UCpk-raw-neut", image looks like sepia, not neutral.

Any suggestions?