If you did not understand a word of that, don't worry. I did not either.
Here is an alternative, but you may have to use a Windows computer to update the firmware on your Samsung M2070 FW printer. Once that is done, connect it to your router using WPS, or your preferred method. Once the printer is connected to the wireless network, your Ubuntu based computer will detect the printer.
Now go to System Settings, and then Printers, and hit ADD PRINTER,and the wizard will start.
Click NETWORK PRINTER, and choose 'Samsung M2070 FW'.
On the lower right hand corner, choose APP SOCKET/HP DIRECT. Your port settings will display, but you will probably not want to mess with that.
The Wizard will then search for drivers.
But wait! The Samsung M2070 FW is not in the driver list. No problem.
Under PRINTERS choose GENERIC, and on the next menu choose GENERIC PCL LASER.
Finish up the wizard and you are in business!