Samsung SL-M4020ND-TAA - Manual (Page 34)

Machine’s basic settings
34 2. Menu Overview and Basic Setup
4 Select the option you want, then press OK.
5 Press OK to save the selection.
6 Press (Cancel) to return to ready mode.
Refer to below links to set other settings useful for using the machine.
• See "Setting the paper size and type" on page 44.
• See "Keypad letters and numbers" on page 191.