[link|http://www.asante.com/downloads/guides/ATALK_Trouble_TD.pdf|AsanteTalk Troubleshooting Guide] (8 page .pdf). It is a [link|http://www.asante.com/products/productsLvl3/AsanteTalk.asp|Ethernet to Localtalk Bridge] and sounds similar to your Dayna EtherPrint-T. It's apparently still available for ~ $90. The paperwork says it'll work with a hub or a switch. It says it is very particular about the order in which things are turned on...
HTH!
Cheers,
Scott.