Ask Proxima M1 User Manual page 34

Language: allows you to select a language for the onscreen display of
menus and messages.
Language
Service: to use these features, highlight them and press Select.
Service menu
Factory Reset: restores all settings (except Lamp Hours) to their default
after displaying a confirmation dialog box.
Lamp Reset: resets the lamp hours counter in the About menu to zero after
displaying a confirmation dialog box. Do this only after changing the lamp.
Service Code: only used by authorized service personnel.
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