Can't seem to get it to clear. Went into User Tools and there is a way to lock it from System Settings. But there is no way to unlock it. Even if I do a Factory reset from the service mode it does not help. I also tried resetting it by holding the Copy button down while turning it on, but it is the same reset as the service mode procedure, and it did no good anyway. Trouble with this model is that is virtually impossible to get to the inside of the scanner unit from what I can see, there are no screws and once you take these apart they are very hard to get back together. Did not want to bang on it in front of the customer either. Any help appreciated!