Samsung ML-1520P - Manual (Page 123)

A PPENDIX
7.4
5 If you selected Recommended, go to Step 6.
For Expert, select the desired option and then click Begin
Install.
6 The printer driver installation begins. When the installation
is completed, click Start.
7 The Linux Printer Configuration window opens. Click the
Add Printer icon on the toolbar at the top of the window.
Note: Depending on the printing system in use, the Administrator
Login window may appear. Type in “root” in the Login field and
enter the system password.