I think the best thing to use would be something like several circles inside themselves closely spaced together. It would look something like this except much much smaller. http://www.cs.duke.edu/courses/spring03/cps296.1/homework/1/circles.gif Any other pictures in high resolution I can test on a printer is welcome as well. It's a color laser printer I'm testing so a bit of color in the picture wouldn't hurt either. Thanks everyone. I guess the better word to use would be micro print. Pictures with micro print. Doh, I did say that, in the title :-P