We have a couple of printers hooked up to our wireless network (airport extreme). They're not wifi capable, but rather connected by usb to airport expresses around the house, and show up on the network. We print to them from various iMacs and macbook pros. Now my wife has an ipad2 and wants to print from that. All the information available seems to be about wifi enabled printers. Is there a way to print from her iPad2 to our printers on our home network? Thanks!