Click on the Main Menu in the top left corner then select Printer Settings
Click on the Bluetooth button then select the USB option
Click on New Search
Click on /dev/bus/usb/..... option
The Printer will now show as Device online and click the Back Button
If printing is via IP LAN printing. Install app called Net analyzer from the Playstore and do a LAN search to identify the IP address of the printer.
Input the IP Address in the prompt then select the connection source as Ethernet instead of USB per the above instructions.