Brother HL-7050N - Manual (Page 96)

CONTROL PANEL 3 - 12
HL7050_US_UG_FM5.5
+ or - button
If you press the + or - button when the printer is on-line (READY), it
goes off-line and the LCD displays the menu.
To move through menus on the LCD
If you press the + or - button when the printer is the on-line (READY),
it goes off-line and the LCD displays the current mode.
You can go to other menus by pressing the + or - button. Pressing
the + or - button allows you to move forward or backward through
the menus and settings on the display. Press or keep pressing the
button until you see the setting you want.
To enter numbers
You can enter numbers in two ways. You can press the + or - button
to move up or down one number at a time, or you can hold down the
+ or - button to move faster. When you see the number you want,
press the Set button.