2Remove the packing tape from the front, back, and sides of the machine.
Tape
3Gently pull the scan lock label until it comes away from the machine. This will pull the scanner locking switch into the FORWARD (Unlocked) position automatically.
Scan Lock Label 
NOTE: When you are moving the machine or do not intend to use it for a long period of time, move the scanner locking switch BACKWARD to the lock position, as shown. To scan or copy a document, the switch must be unlocked.
1.4SETTING UP YOUR PRINTER