QTR-Quadtone RIP

Just a correction of a typo here in case someone looks at this six months from now. I meant to recommend changing the black boost in my hypothetical example from 55 to 60 (not 6!!)


> If not, simply use some black boost in your ink description to get that white you are looking for in your prints. If your K limit is now 55, for instance, crank the black boost to 6 and see where that leaves you.
> 
> --- In QuadtoneRIP@yahoogroups.com, "alxbk" <alxbk@> wrote:
> >
> > Hello,
> > 
> > Maybe someone had a similar experience and can point out what I might be doing wrong.
> > 
> > So basically I was trying to polish a gray curve for the silver paper profile I'm working on, when I noticed that the whites are slightly muddy on the final print. The same profile was working just fine the day before, but now all of the sudden I can't get pure highlights in my prints. As if black inks can't master enough density to block the light completely. Default ink limit in profile is 100%, and so is K density.
> > My first though was, something wrong with the chemistry, or the silver paper. So I placed a piece of black plastic over a portion of the negative, and that developed to pure white. 
> > 
> > So either something is wrong with the printer, or the profile. 
> > I keep exact records of every change I do to my profile, so I went back to the point where my stepwedge print showed pure highlights. Reprinted it with the same settings and got muddy whites again.
> > If anyone has any clue as to what else might be affecting highlights like that, please share.
> > 
> > The printer is 3880.  
> > 
> > Thank you.
> >
>