HP Designjet 130nr will not communicate with mac

[hewlio]

I have a 130nr that I've been using for 3-4 years. Now all of the sudden it has stopped communicating with the mac that it was hooked upto. That mac has snow leopard. When I tried to print yesterday the computer said the printer was offline when it was on. Then in pint & fax setting it said it was in use. I tried restarting everything. That didn't work. So I deleted the printer out of print & fax to try and reinstall the printer. Now when I plug it in and try to add the printer to the computer I can't get anything to show up. So I am stuck with no idea what to do. I've tried different cables, tried printing from a different mac that is on the same network because all my printers are shared. Any help would be appreciated. Thanks