Oki S700 - Manual (Page 49)

MENUS AND SETTINGS > 49
ALL CLEAR KEY
As mentioned previously, settings changed using the Menu key and
activated using the Select key are saved into the Scancopier’s
memory. They remain after power is turned off, and become the user
default settings.
Settings changed with the other keys are temporary, intended to
affect the next copying job. These will revert to their default settings
automatically after the Scancopier has been idle for about 3 minutes.
l
Press the All Clear key to cause all temporary settings to
immediately revert back to their user defaults.
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Press and hold the All Clear key for about 5 seconds to cause
all settings to revert back to their factory defaults.