QTR-Quadtone RIP

David,

Five days ago on your thread about this on the FB Digital Negatives group, I offered to send you a different profile to try. You did not respond. The offer still stands. It is a profile that I made for a friend who is printing Pd on very thin translucent Japanese washi with negs made on a P800. I can send it to you with and/or without a GrayCurve, though without would probably be more suitable since you would need to customize the GrayCurve anyhow. I have seen her negatives and they are beautiful with no sign of dithering or any kind of pattern and a Dmax of around 3.2 which is way more than OEM inks produce on my 3880.

At the very least, trying this might help to determine whether the cause of your problem lies with the profile or if it is something else.

Cheers,
Keith

Keith Schreiber
jkschreiber.com




> On Nov 21, 2016, at 6:54 AM, daimone@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:
> 
> Does anyone have a clue why I'm getting these patterns with QTR and the Epson P800?
> 
> 
> I've gone through nozzle checks and print head alignment, no different.  When I print a digital negative without QTR, the patterns are not there.  But QTR gives me a better negative otherwise.
> 
> Is something about using only three inks and specifying an ink limit making this a risk with QTR?
> 
>