I have the same printer. So you will have to go into the menu and enable the wireless portion of the printer.
Device Settings > LAN settings > change wireless/wired. (set wireless as active). Then you'll go to Wireless LAN settings and choose between WPS or WCN setting. I do the WPS, then choose the push button method, or the PIN method. PIN works well for me since it's displayed by my router.
Hollar if you get hung up
Mobo: Biostar TA880GU3+ uATX
Proc: AMD Phenom II 960T unlocked/6 cores @ 3.5ghz
Ram: (4) 4gb GSkill 1600mhz (16gb total)
HDDs: (2) 640GB WD AAKS, (1) 750GB Seagate Ext
Vid: Sapphire 6870 1gb DDR5 1000mhz core, 1100 mhz mem
Camera: Pentax K5, I'm not a Canikon fanboy.