Unlocking the Scanning Unit (LiDE 20, 25, 30, 35, 50, 60, 80, 90, and N1240U, N670U, N676U, N1220U, N650U, N656U
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The scanner lock switch is located on the bottom of the scanner.
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To unlock the scanning unit, move the lock switch towards the unlock mark.
Important: To be sure the scanner has been successfully unlocked, cycle the lock switch back and forth and leave it in the unlocked position.