Your MK320 keyboard has a row of function keys (also called F-keys) above the number keys. These F-keys have two states:
NOTE: MK320 F-keys cannot be re-programmed. They have pre-programmed functionality only.
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Normal: F-keys in their normal state can be programmed to perform a variety of tasks. To use F-keys in the normal state, press the F-key you wish to use.
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Enhanced: The F-key will send a pre-programmed command (ie. Print) when the FN key (shown below) is pressed simultaneously with the F key.

 
Enhanced Functions:
Please see the following table for a description of the Enhanced functions of the F-keys::
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PC Search | ![]()  | 
Sleep | 
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Lock Computer | ![]()  | 
Contextual Menu | 
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My Computer | ![]()  | 
Scroll Lock | 
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