You can setup a AD-hoc network between the PC and printer. This is equivalent to connecting the two with a crossover cable. follow the wizards in the wireless software on the pc and the interface on the printer to setup ad-hoc on the PC first where you will select the SSID and encryption and then do it on the printer and it should find the newly created adhoc network.
Or you could purchase a wireless router or access point and connect both the pc and printer to it. This would be equivilant to connecting to a wired switch or router.
