Digital BW, The Print

Here

<http://www.luminous-landscape.com/essays/4000-cost.shtml>

is a professional analysis of the author's costs of printing A4 and 
A3 prints on EEM on his own 4000.

The aggregate unit cost of keepers is given for each size in the last 
table at the very end of the piece. So is a link to the author's 
model.
--
Sam