Abstract: A scanner (30) comprises a transport mechanism (6) for moving a document (12) and a sensor (2) for detecting a leading edge (31) and trailing edge (32) of the document. A camera (16, 17) scans the document (12), detecting the leading edge (31) and a trailing edge (32) of the document. A controller (10) receives a signal from the camera (16, 17) when the camera detects the document in a field of the camera and receives a signal from the sensor (2) when the sensor detects the document (12) in a field of the sensor. The controller starts image capture when a leading edge (31) of the document is detected by either the sensor (2) or the camera (16, 17), and stops image capture when a trailing edge (32) of the document is detected by either the sensor or the camera (16, 17). The drive mechanism (5) is turned off when a leading edge (31) of the document is detected by either the sensor or the camera, and starts when a trailing edge (32) of the document is detected by both the sensor (2) or the camera (16, 17).