Samsung SL-M2070W-XAA - Manual (Page 215)

Printing features
215 4. Special Features
Printing files
You can print many different types of files on your machine using the standard
CUPS, directly from the command line interface. The CUPS lpr utility allows you
to do that. You can print these files by using below command format.
“lp -d <printer name> -o <option> <file name>”
Please refer to lp or lpr man page on your system for more details.
Configuring Printer Properties
You can change the default printing options or connection type with Printing
utility supplied by O/S.
1 Launch Printing utility (Go to System > Administration > Printing
menu or execute “System-config-printer“ command in Terminal
program).
2 Select your printer and double-click it.
3 Change default printing options or connection type.
4 Click Apply button.