Digital BW, The Print

ferdinand_paris wrote:

> Thanks for this reply, but I may have misled you a little.  I am not
> trying BO through QTR.  And QTR is working just fine using the full UC
> ink set.

I get it. But your term "black plate only" suggested a non Epson 
driver.

> 
> My problem with light prints is when trying to print BO using the
> Epson driver, with the driver set to "Black" rather than "Colour". 
> 
> As mentioned in my other posts, I seem to have tracked the problem to
> the Epson driver printing only the black plate.

Many on this list will envy you when you get that "black plate 
only" = "black generation" printing through the Epson driver, 
that driver is transparent nor controllable on that level.  Epson 
drivers will make RGB input of anything they get as input when 
driving the CcMmYK channels and there's no way you can get the 
CMYK separated. The other choice is BO printing only which is 
using the K channel only from 0-100%. Some Epsons don't have that 
last choice in practice. Wasn't there a difference between 
European and US drivers on that option ?  The C84 etc have a 
similar issue if I'm not mistaken. I'm not that familiar with 
desktop models. Getting a loupe to check which channels are 
actually used may clear things up, even the shadows.

Ernst