Digital BW, The Print

Hi Roy

I have just finished (finally) calculating and loading some softproofs for Permajet Alpha.  
The softproofing capability is great.  Thanks to you and to Carl!  One question comes to 
mind again though and it has to do with the way QTR prints a lot lighter than the image on 
screen.  The softproofing feature highlights this dramatically.  I find I have to punch the 
blacks to get close to a match (duplicating the image on screen with one softproofed and 
the other not).  Thinking out loud, given the two end points are fixed, ie paper white and 
100% black, this begs the question as to whether something is out of whack in the original 
curve linearisation process.  Either that or QTR/Gimp maps pixels with a bias away from 
100%.  In general, I would expect the softproof to only show me (a) the hue of the output 
paper and ink combo and (b) the lower dmax (assuming out-of-gamut is not an issue).  A 
curve adjustment can't alter (b) cos 100% black is as black as can be. What am I missing?

Cheers

Steve

PS:  Do you check simulate paper white in the softproof? (I have not but many in the colour 
world argue you should)