Unsecure Network, Access to Printer, Now What?

I am on an open wifi network. The gateway I am connected to , 192.168.1.1, has a secure network behind it at gateway 192.168.11.1. A series of Nmap commands painted me a picture of the network, to include CCTV server, POS system, and a computer. Some more digging and I was able to open up the network printer in browser. It has no admin password. I can see the WPA passphrase on the website, but it is dotted out. Using the network printer, how do I access other computers on the network, see the WPA passphrase, or do anything really. Metasploit has been unable to open any session. Is this because the network I am trying to exploit is two hops away? Any help is appreciated. Thanks.