CipherLab CP55 Reference Manual page 38

CP55 Mobile Computer
FUNCTION KEY
The Function key [Fn] serves as a specified key, and the functionality of each key
combination is application-dependent.
1) To enable this special key, press [Fn] on the keypad. Its icon
status bar.
2) Now press another key to get the value of key combination (say, press [1] to get the
value of F1).
3) To get the value of another key combination specified by the function key, repeat step
2.
4) To disable the special key function, press [Fn] again, and the icon
Note: There is no need to long press the [Fn] key.
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