QTR-Quadtone RIP

Thanks for the feedback, Howard.

I'm using double sided paper, and the nozzle checks are perfect. The
only other paper I have is EEM, but it has a smoother surface than
Entrada so, not surprisingly, EEM prints are less grainy.

I started with a 100% black boost and worked my way down, because
high levels just resulted in shiny black patches and scuffs. I also
started with an overlap but eliminated it because once again blacks
were too inky.

I'm a little puzzled, because Entrada is a thick paper and can
allegedly handle a LOT of ink.

Mark

--- In QuadtoneRIP@yahoogroups.com, Howard Shaw <glassman@...> wrote:
>
> I would check you're printing on the right side of the paper and that 
> you have good nozzle checks. Do you get this problem with other papers?
> 
> The only slightly odd thing in your curve set up is that black boost is 
> less than your black ink limit. Normally it would be slightly more. You 
> could also introduce an overlap of say 8-12 to smooth the transitions.
> 
> Howard
> 
> Mark McCarvill wrote:
> > I'm seeking suggestions on how to reduce `grain' in my QTR
> > prints on Entrada natural. I'm using UT7 inks with eboni black on a
> > 7600, printing at 1440 super. Here 
<http://www.stepwise.ca/QTR.jpg>  is
> > a test strip to illustrate the problem.
> > 
> > For those interested in the detailed curve data, here 
> > <http://www.stepwise.ca/QTR_Curve.jpg>  it is.
> > 
> > In a nutshell, I'm using a very low ink limit (30%), which I know
> > contributes to grain. But going higher (even 35%) results in
shiny, inky
> > lines in the 90 - 100% black patches. And printing at 2880 doesn't
> > improve things.
> > 
> > Any ideas would be welcome on how to introduce more smoothness without
> > adding excessive ink.
> > 
> > Thanks
> > 
> > 
> > 
> > 
> > [Non-text portions of this message have been removed]
> > 
> > 
> > 
> >  
> > Yahoo! Groups Links
> > 
> > 
> > 
> >
>