Once you get a card, all you have to do is select the printer in the Chooser as "AppleTalk ImageWriter". You may need the drivers for these (Apple should have them on their website). The name of your printer will come up. (If you don't like the name, change it using The Namer). Also, for AppleTalk networking, you need both AppleTalk turned on in the Chooser and all devices connected to the printer port.