Is there some way of setting up a spare Mac (such as an older MacMini or an old MacBook say Core2Duo era) as a combined printer and file server? My home network is mostly wireless, though my Mac Pro is connected via ethernet. I have a rather nice laser copier/printer/fax which I use mostly as a printer and occasionally as a scanner. Basically, I don't want to have to carry my MacBook downstairs just to print a document. Is there a way I can hook up the printer to a spare Mac via USB and then have the Mac running as an always-on Printer and File Server?