My kodak 5250 printer is not recognised by my Macbook as a wireless printer

I cannot add my Kodak 5250 printer wirelessly to my MacBook - it does not come up in the 'add printer' menu. I've done everything suggested in the Kodak support page about this - updated software and hardware, turned everything off, turned it on again, checked the printer is connected to the network - so what next? It works fine using a USB cable.