I'm trying to print a document to a Ricoh Aficio MP 7001 copier/scanner/fax/etc. It want to just use USB printing by hooking up the printer to my Mac. I go to Add a New Printer, though, and the Aficio doesn't show up. I read something about PostScript, but don't quite understand what that's all about. Is there an easy way to use this multi-function copier as a simple USB printer? Thanks!