QTR-Quadtone RIP

John,

InkjetMall built a unique profiler for monochromatic inks. Originally
it used it to produce 
the ICC profiles of PiezographyBW ICC. IJM also uses it for the
custom profiles it produces 
for Piezography iQuads customers. It was adapted for use with Roy
Harrington's QuadTone 
RIP. A simple target is printed and measured via a spectrophotometer.
It is a short 
process. The software's internal complexities are not going to be
published at this time. 
The goal in the ICCs, iQuads, and QTR curves is absolute smoothness
of tone through 
crossovers, and dot-less-ness. The results can be plotted against any
reasonable Gamma. 
We are plotting QTR curves against Gamma 2.2. PiezographyBW ICC and
iQuads are 
plotted against the Gamma 1.8. I hope that this is enough information
to satisfy your 
curiosity.

regards,

Jon Cone
InkjetMall

--- In QuadtoneRIP@yahoogroups.com, "John Moody" <moodymz3@y...>
wrote:
> The curves from inkjetmall were not created with Roy's
software, so no
> descriptor files exist.  The channel crossovers are very smooth,
something
> you don't get using the QTR curve generation tools.  I'm
patiently waiting
> for information on how those curves were created, as I would like
to create
> curves with similar smooth crossovers.
> 
> Best regards,
> John Moody
> 
> -----Original Message-----
> From: QuadtoneRIP@yahoogroups.com [mailto:Quadto
neRIP@yahoogroups.com]On
> Behalf Of Tom Husband
> Sent: Tuesday, October 04, 2005 2:07 PM
> To: QuadtoneRIP@yahoogroups.com
> Subject: Re: [QuadtoneRIP] Re: NK7 Ink
> 
> Hi Ed,
> 
> Not dumb at all.  I wonder the same thing but if there
> are no descriptor files how can it be done?  It seems
> to me that the only way would be to create your own
> curve, measure the patches for the descriptor file and
> then linearize.
> 
> Tom
> 
> --- edrudolpho <erudolph@p...> wrote:
> 
> 
> ---------------------------------
> Excuse the dumb question, but using the NK7 curves,
> you'd still linearize for your printer,
> right?
> 
> Ed
> 
> --- In QuadtoneRIP@yahoogroups.com, "piezobw"
> <piezobw@c...> wrote:
> > Tom,
> >
> > We produce the NK7 curves with a proprietary
> software system that we built in-house,
> and
> > then make these compatible with QTR, and send them
> to Roy Harrington. This is why
> there
> > are no descriptor files. Its a different system. But
> the end effect is making as perfect a
> set
> > of curves as possible.
> >
> > regards,
> >
> > Jon Cone
> 
>