Does the 3115cn work with Document hub?

I am trying to connect the 3115cn printer I have to the document hub, but the hub says there is no printer connected?  I print from it everyday and is in the devices tab.  I did a little research and it says i have to manually enter the IP address, but my printer is just connected via USB cable.  

I guess i can make it a network printer if that is what it takes, but how do I do that?  

Thanks for any help!