QTR-Quadtone RIP

--- In QuadtoneRIP@yahoogroups.com, "Roy Harrington" <roy@...> wrote:
>
> --- In QuadtoneRIP@yahoogroups.com, "thephilipjon" <philipjon@> wrote:
> >
> > --- In QuadtoneRIP@yahoogroups.com, "warmzone5" <bill@> wrote:
> > >
> > > Hi All,
> > > 
> > > I love qtr and was using it with my epson 2200 without a hitch.
 Now I
> > > have the R2400 printer and need some help.  
> > > 
> > > I am getting a very small width banding pattern.  I have tried
> > > everything I can think of .... using different dithering patterns,
> > > paper, inks,etc.  I am not getting any banding pattern at all using
> > > the epson driver in the advanced black and white mode... smooth as
> > > silk. I am using the curves that came in the recent release 2.3.1
> > > 
> > > I would love to be able to use the QTR software because of the
> > > incredible control it offers.
> > > 
> > > I have combed this forum in search for answers... perhaps a math
issue
> > > because of the extra nozzles and or difficulty in changing the dot
> > > size? Roy.... can you help?
> > > 
> > > Is anyone else printing successfully on Kirkland glossy using
QTR, the
> > > R2400, and epson ultrachrome inks?
> > > 
> > > Thank you again for your time and for a wonderful software and
forum,
> > > 
> > > Bill
> > >
> >  
> > 
> > Hi Bill and others,
> > I posted almost the same question on Feb. 13th ( described in detail )
> > and I am now pleased to see that I am not the only one!!!!! 
> > Christians description of the problem is identical to mine. 
> > As I have been out of town I didn't keep up to date but I don't think
> > there has been a solution offered.
> > Maybe Roy can help as I would really like to experience QTR's full
> > potential as others obviously do?
> > Hope further posts are forthcoming and thanks to all.
> > Philip
> >
> 
> First of course is to make sure you don't have any nozzle clogs.
> 
> The other difference that I see with the R2400 vs the 2200 is that
it has a bigger
> print head and correspondingly more nozzles.  What this means is
that paper
> movement has to be more accurate -- over a range of one inch rather
than half an inch.
> 
> Anyway banding can be a little more likely.  For this reason I
typically use a resolution 
> of 1440x1440super on the R2400 as compared to 1440x720super on the 2200.
> Incidentally the Epson driver also uses this resolution in many cases.
> 
> Fortunately on the R2400 dot sizes are ideal for using the same
profiles at different
> resolutions.   2880 dpi is also a possibility but I don't find it
necessary usually.
> 
> Roy
>

Thanks for your response, Roy. 
I have experienced, after many weeks of trial and error, that the
resolution of 1440x1440 super is the ideal resolution and indeed, l
have noticed little, if any, benefit of 2880.
With  nozzles checked and aligned I am still unable to produce a print
without the banding that a few of us are experiencing.
Are you saying that banding is likely with a 2400 and we have to
except this with QTR and/or is there a way of improving the paper feed
which may be a contributing factor?

Philip