Acer 9500 manual Using the keyboard, Lock keys, Lock key Description, Fn + F12

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Using the keyboard

The keyboard has full-sized keys and an embedded numeric keypad, separate cursor, lock, Windows, function and special keys.

Lock keys

The keyboard has three lock keys which you can toggle on and off.

Lock key	Description
Caps Lock	When Caps Lock is on, all alphabetic characters typed are
	in uppercase.
Num Lock	When Num Lock is on, the right hand side numeric keypad is
	in numeric mode. The keys function as a calculator (complete
	with the arithmetic operators +, -, *, and /). When Num Lock
	is off, the keys assume cursor and other shortcut functions.
Scroll Lock	When Scroll Lock is on, the screen moves one line up or down
<Fn> + <F12>	when you press the up or down arrow keys respectively.
	Scroll Lock does not work with some applications.