>I've heard the 360 ppi rule lots of places, too, but I always assumed >it was just a matter of speed.
No it is a matter of detail with Epsons. It will only matter with certain files with high frequency data. Although theoretical all prints should be sharper when sent the right ppi data. >Any of the "image quality" advocates up for doing a comparison test? It has been done. http://www.inkjetart.com/tips/ppi/ Other testers have found the same results with Epsons. For most prints any ppi over 180 will do. Some testers find a bit more detail at 720 ppi than 360 with a good printer on glossy paper. For prints free of artifacts on an Epson (which most of the time you can not see) print at 180, 360 or 720 ppi. These are the native resolutions of the Epson printer, depending on which print quality is chosen. I think the native resolutions of Canon printers is 300 and 600. Powell
