Digital BW, The Print

Thanks, Paul. 
Just to see what happens I opened 21-step image in Photoshop, converted to
RGB, applied the curve and I measured (with the eyedropper tool) the three
zones which look cyan, magenta and yellow, and I saw that the values are
RGB(0,255,255), RGB(255,0,255) and RGB(255,255,0). I must suppose that the
epson driver consider these values as pure C, M and Y, and therefore outputs
a single ink for each of them, am I right? 
Sorry if this seems obvious, but I want to double check because knowing how
the driver maps RGB values to inks is the starting point for the duotone
curves I'm going to write.
 
Thanks again,
Alessandro Pardi

-----Original Message-----
From: Paul Roark [mailto:paul.roark@...]
Sent: martedì 6 novembre 2001 00.20
To: DigitalB&WPrint
Subject: RE: [Digital BW] Quad Ink Densities -- Color Test and 21-step test
file locations
 
<snip> 

All the "Color Test" does is pump out 100% of each quad (not hex) ink
separately.  It'll be obvious which ink is which.  The black ink is in the
100% spot (ignore the 90-95% blocks, they are a mix), the cyan is the second
from the left, the magenta (on a quad machine) is the second from the right,
and the toner on the MIS VM or lightest gray (yellow position) Piezo/FS ink
is on the right.





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