Digital BW, The Print

Rodolpho,

First the quads appear to be dilutions but may also have a slight 
shift in tints to increase tonal differences. If you want to mix your 
own then MIS sells the necessary inks and base. Go to:

http://www.inksupply.com/index.cfm?source=html/quadtone.html

Check out their Custom Tinting Inks. With this approach you can get 
exactly what you want but the price is the need to create custom 
curves to translate the correct information to the printer driver. 
This can and has been done, but be prepared to invest some serious 
time in the process.

Martin


--- In DigitalBlackandWhiteThePrint@y..., Rodolpho Pajuaba 
<rodolpho@p...> wrote:
> 
> > 
> > This leads me to wonder what you could do with a duo-ink system. 
Use
> > the black and a 50% dilution of the black. All this strongly 
supports
> > the people who have said you really only need three inks to get a
> > full tone print.
> > 
> > I hope someone will read this stuff, play with it and let us know.
> > 
> > Martin
> 
> Is this possible? I mean, I always believed (I had never made any 
research;
> I just assumed) that the 4-ink sets were done with 1 black and 3 
different
> additions of white ink onto black ink. If the 3 other inks are 
simply
> dillutions, why bother to buy the sets? Just dillute them yourself, 
with a
> little trial-and-error dillutions, to find the match that works 
fine for you
> - is this (me) too dumb? Or too much of work for a not-so-good 
result?
> Regards,
> 
> -- 
> Rodolpho Pajuaba
> www.pajuaba.com.br