How do I connect my printer via the wifi? Kodak 3.2 ESP

My mac will not continually keep my printer's info for wifi printing and I have to meander through everything to try to get it back in communication with the printer. My other computer does not have a problem with this. Only this mac (Lion 10.7.5).

My printer is connected to the wifi properly.

I have sharing on in preferences.

If I hit the + button to add a printer nothing shows up.

I can connect a USB cable but that isn't the point.

Printer is up to date and both applicance's software is up to date.

I am starting to loathe this mac.

Jason