NEC NP3150 User Manual page 60

4. Press the SELECT  button three times to highlight [SECURITY SETTINGS].
5. Press the ENTER button to display the SECURITY SETTINGS menu.
6. Press the SELECT  button four times to highlight [SECURITY-SETTINGS] and press the ENTER button.
The Security screen will be displayed.
7. Press the SELECT  button once to highlight the Keyword entry box and press the ENTER button.
The Software keyboard will be displayed.
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4. Convenient Features