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Digital BW, The Print

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Re: Why back to RGB in B&W workflow?

2003-11-14 by alnchiem

Alex
thanks for that explanation. That ould mean much more work than just 
converting from grayscale to RGB. Or is there some 'already 
available' adjustment file to segment the greys in an RGB file so 
that the Epson driver knows what to do? Is that the software in a QTR 
or these adjustment curves?
Andrew

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "B. Alex Pettit 
Jr." <a_pettit_jr@y...> wrote:
> I think what it is to which you are referring is the technique to
> segment the various grey ink tones to grey shades of the print...
> 
> Consider the Epson driver: it creates grey shades by a balanced 
mixing
> of cyan magenta and yellow inks to make grey. Thus the lighter 
shades
> of a print above black will have small dots of CM&Y sprayed out on 
to
> the paper. If the color inks are replaced with three shades of grey,
> the Epson driver, if printing a B&W image, will do the same thing. 
The
> result is that the darkest grey will be included in the very light
> tones and visible dots will result.
> 
> Now a way to use only the light grey in the light areas, medium in
> medium and the darkest grey ink in the shadows: If the lightest grey
> is in the Yellow position, tell the Epson driver to print levels of
> yellow ( 'color' ) and you will use Only the lightest ink for the
> shades near white and render the print 'dotless'. Make areas of the
> print a nice ugly magenta, and only the medium grey will be applied,
> cyan colors in your RGB print (as shown on the monitor) will make 
the
> dark greys.
> 
> So, your print must be converted to RGB, then turned in to intensely
> colored areas to force the Epson driver to use an appropriate grey 
ink
> for a particular grey level. If adjusted correctly, a segemented
> workflow can create a wonderful dot free, fine quality black and 
white 
> print !
> 
> Best,
> Alex

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