Digital BW, The Print

Cher Pierre-François,

CMYK is not an option unless you use a sophisticated RIP. With RGB you 
have better control of the way the image will print if you use the Epson dr=
iver. 
You may find RGB curves - such as the ones Paul Roark et al have written - =
to 
partition the inks into the grays of the image. Look in our archives for mo=
re 
info.

Better yet, see if you can get software and profiles that will do that for =
you, 
such as the R9 or Colorbyte products - though I don't remember if ImagePrin=
t  
supports Lyson inks. I doubt either will work with Photoshop versions pre 5=
.

Antonis.


--- In DigitalBlackandWhiteThePrint@y..., "pcbladefr" <bonnefoi@u...> wrote=
:
> Hello,
> 
> I'm new to quadtones technique, and I would know what is the best mode
> to use in order to print with my Epson 780 model (6 colors).
> 
> I use Photoshop 3 and quadtones from Lyson (Quadblack neutral).
> 
> I can use RGB or CMYK in the Epson driver, but it's quite disturbing
> to use RGB mode for greyscale image, hoping that the automatic
> conversion facility of the printer can achieve the best assignment of
> the 6 greys inks.
> 
> So, I would like to know if I must stay in RGB, perhaps with some CMYK
> adjustment or if I have to go through real CMYK process.
> 
> If someone has some fine transfer functions for Lyson inks, I would
> appreciate to get them.
> 
> Thank you, a french newbie !
> 
> Pierre-François Bonnefoi.