You can restore all of the Common Settings to their defaults (initial settings).
Remark
If you set Language Switch to 'On', and then return the Common Settings to their default settings, Language Switch is turned 'Off', but the language shown on the touch panel display remains unchanged. (See "Changing the Language Shown on the Touch Panel Display.")
If you set Limited Functions Mode to 'On', and then return the Common Settings to their default settings, the setting for the Limited Functions Mode remains unchanged.
Image forms registered for Register Form for Form Compositions are not erased.
Press (Additional Functions) → [Common Settings] → [Initialize Common Settings].