That's a great link; thanks much.
Those of us who make photographic prints with inkjets are often ignorant of the extremely broad and deep history of printing. Personally I love letterpress text printing, and collect finely printed books from the golden age of small press fine art book printing, circa 1895 to 1940.
The best resource on the subject of photographic printing technology is Richard Benson's fantastic book, The Printed Picture (Museum of Modern Art, 2008). It'll teach you anything you want to know about collotypes, Woodburytypes, web offset printing, photogravure....whatever. It's a must for anyone remotely interested in how the tools we use came to be.