At outbackphoto.com there is a recently posted tutorial about using
qtr icc create written by Georgio Trucco. It's called Printing
Insights 045, posted 12/16/06. This is a long article, and the qtr
portion is at the end. The bulk of the article is a very interesting
analysis on the innards of thee Epson ABW driver. This article is well
worth a read.There are many here who can read this piece much more
critically than I. If there is anything to be said, please share.