Many Xerox laserprinters use a J11-based (same CPU chip as PDP-11/73, 83, 84, 93, and 94) controller. Some have it on a Q-bus backplane, but most J11-based Xerox engines that I've seen have their own custom bus. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927