If this is a wireless printer then all you need to do is set an address reservation on your router and then set up a fixed IP port on your printer driver.
First: Install the printer driver as a normal USB printer by connecting the cable during the install process dont use the wizard if you can help it.
Second : Find your MAC address for the printer (all types of Network Cards MUST have one) this will either be in the LCD control panel or on the bottom of the printer on a label and set this in your admin panel of your router to say 192.168.0.10 for example. You can normally enter this using 192.168.0.1 but all routers are different. Check here for your make and model http://www.routerpasswords.com/
Last : Goto the printer driver properties for the USB printer you have just install click the port tab and click add standard IP port as shown below, then disconnect the USB lead this is only required to make sure the correct inf file is used on the driver install.
Thats is. !!!