Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Clayton Jones" 
<cj@c...> wrote:
> Hello Peter,
> 
> >>...in many cases less Dmax. 
>  
> >But I don't understand why DMAX should be an issue.
> 
> I am referring to the fact (according to Paul Roark) that some 
systems
> underlay the black with some other ink, which lessens the Dmax a 
bit.


I certainly agree that if it did mix in other colors, even for 
values at RGB 0,0,0 that it could certainly reduce the dynamic range 
of the print.   But why would they do that?