Click “Forward” and it should automatically find the driver you just installed above and let you add the printer.Find the “Samsung ML-331x (SEC, )” and verify the MAC address and IP address in the name are the correct ones corresponding to the printer you want to install. Start menu → “Printers” → Add → Printer → click “Network Printer”.Example screenshots in Ubuntu shown here:.Now install the network printer via the “Printers” GUI in Xubuntu.Install this driver as follows: suld-driver-* for example: sudo apt-get install suld-driver-3.00.90.Ex: for ML-331x the table recommends 3.00.90. Find your required driver for your printer in the list of supported printers.Another user reported that once the (Samsung) driver is installed with a lot of pain, it fails to communicate properly with CUPS. See here for a list of supported printers - One user reported that the driver downloaded from the Samsung web site makes this printer working perfectly out of the box on Fedora Core 5.Install the latest repository key: sudo apt-get install suldr-keyring.Refresh your repository settings: sudo apt-get update.ex: sudo nano /etc/apt/sources.list, then type in the line and save and exit.To /etc/apt/sources.list (root/sudo access required to edit), add the line:.sudo cp /etc/apt/sources.list /etc/apt/.I ended up having to use The Samsung Unified Linux Driver Repository, like Huge did in his answer, but the instructions I came up with for myself are slightly different: The accepted answer by Lucio didn't work for me.