OK, if it's anything like my 6400 line printer then the configuration will be done on the printer through the menu. You just have to scroll through the menu options until you get to the ethernet interface menu and you can change from there.
If not, then you can "probably" do it through AS/400 commands. I'm looking right now for how to do it (my printers are on twinax, so I've never done it). Might want to try "go printer" and see if there is something you can do from there, or "go network" and see if you can change the description.
I'm having an IBM rep come over today for some maintenance, so I'll be sure to ask him about it today. Hopefully we'll get this narrowed down for you. J.R. Juiliano
Information Systems Specialist
Tri-City Emergency Medical Group