The 52xx series doesnt come with network scanning from the factory. You need to find the Network Scanning Kit its a little book in a white cardboard-ish mailer the Enablement Key is in the front page.
SMB and FTP are there yes they are a system feature but will not work untill the Enablement Key is entered.
If you are not sure if Scanning was purchased call your sales rep they can confirm. If you h ave lost your key call the sales rep to see what needs to be done.