Locking the Keys
Use this procedure to lock the control panel keys.
Simultaneously press and hold down the [
/Menu], [Escape], and [#Enter] keys for 3 seconds, and then [#Enter] key two times.
If you press a locked key, “Panel Locked/Cannot use” appears.
If an error occurs while the keys are locked, certain keys are automatically unlocked to allow you to clear the error.
