On Mar 5, 2013, at 7:53 PM, Al Grappone wrote: > Worked with Leopard. Now I have Mountain Lion. Keep getting error -30870. Have you consulted the following relevant documents, which are readily available from the Apple Support website: <http://support.apple.com/kb/HT3669#canon> <http://support.apple.com/kb/PH10622> <http://support.apple.com/kb/PH11145> > If I cannot get it to open what printer works with Mountain Lion? My several old Canon printers (Pixma MX870, Pixma MP500, ImageClass D480) all work just fine under OS 10.8. Fabian