QTR-Quadtone RIP

Try different "dithers" (QTR adjustment)...hard to predict which will
work best..I'm currently using Floyd Steinberg with Moab Kayenta. 

--- In QuadtoneRIP@yahoogroups.com, "curiousiz" <m@...> wrote:
>
> Hello, I'm new to QTR.  I've looked through the archives and haven't
found this problem, but 
> hope someone might have insight.  I am printing to an Epson 2200
using PS CS2 and the UT7 
> inkset from MIS, onto Moab Entrada paper.  I have made about 20
prints that have worked 
> great but in some of the most recent prints I have been getting sets
of very fine lines in the 
> deepest shadow areas.  Not on all prints and only in some shadow
areas.  I've tried cleaning 
> the nozzles but the problem continues in just those select  prints
and repeats identically in 
> those images in those specific areas.  ?  Any thoughts would be
greatly appreciated.  Many 
> thanks in advance.  Morgan
>