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
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Vid: Sapphire 6870 1gb DDR5 1000mhz core, 1100 mhz mem