HP ProBook 5220m HP ProBook Notebook PC User Guide - Windows Vista - Page 52
Switching key functions on the embedded numeric keypad, Using an optional external numeric keypad
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NOTE: The embedded numeric keypad will not function while an external keyboard or numeric keypad is connected to the computer, an optional docking device, or an optional expansion product. Switching key functions on the embedded numeric keypad You can temporarily alternate the functions of keys on the embedded numeric keypad between their standard keyboard functions and their keypad functions by using the fn key or the fn+shift key combination. ● To change the function of a keypad key to keypad functions while the keypad is off, press and hold the fn key while pressing the keypad key. ● To use the keypad keys temporarily as standard keys while the keypad is on: ◦ Press and hold the fn key to type in lowercase. ◦ Press and hold fn+shift to type in uppercase. Using an optional external numeric keypad Keys on most external numeric keypads function differently according to whether num lock is on or off. (Num lock is turned off at the factory.) For example: ● When num lock is on, most keypad keys type numbers. ● When num lock is off, most keypad keys function like the arrow, page up, or page down keys. To turn num lock on or off on an external keypad as you work: ▲ Press the num lk key on the external keypad, not on the computer. 40 Chapter 3 Pointing devices and keyboard