I have a Xerox Workcentre 4150 machine. It gives an error which states that "The System Operation Key is missing". The light on the side where the Network scan Enablement Key is inserted blinks red. The system powers up but then it gives this error. I can't use the machine.

When the problem started I noticed that the Network Scan Enablement Key was missing from my machine. My daughter had misplaced the key. I ordered a new one and after inserting the new Network Scan Enablement Key, I still get the error.

Your help along with instructions will be appreciated. Please post if you know the answer to this problem.