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Digital BW, The Print

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Re: Epson R2400 ABW system - overview

2007-03-07 by Clayton Jones

Hello Paul,

>I've searched the archives, but I have yet to find a clear
>description of just the ABW system does and how it does it. If 
>someone could explain it clearly and in detail or provide a link, 
>it would help me understand.

Tom mentioned my article (#9 at the link below).  It contains a step
by step workflow for using the 2400 in ABW mode.  It's more of a "How
To"  than "How it works" article, but it should give a good overview.

 
>For example, what do the horizontal and vertical controls do? 

The ABW driver displays a color tone circle with a dot in the middle.
 The H and V controls change coordinates which move the dot around.
0h,0v is the center point and creates a print tone close to neutral
(the actual tone varies with different papers).  The controls can be
positive or negative numbers and can position the dot anywhere in the
circle to produce whatever tone you want.  The left/right axis is
green/magenta, up/down axis is yellow/blue.  So a sepia tone, for
example, can be produced with 20h,40v.  My favorite setting is 2h,8v
which produces a slightly warm tone on Photorag and VFA papers.


>That is just one question among many I have.

Go ahead and ask, happy to help.


Regards,
Clayton

Info on black and white digital printing at    
http://www.cjcom.net/digiprnarts.htm

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