Patent ID: 7336404

Claim:
A scanner comprising: a transport mechanism for moving a document; a sensor for detecting a leading edge and trailing edge of said document; a camera for scanning said document, detecting a leading edge of said document, and detecting a trailing edge of said document; and a controller which: 1) receives a digital signal from said camera when said camera detects said document in a field of said camera; 2) receives a signal from said sensor when said sensor detects said document in a field of said sensor; wherein said controller: 1) starts image capture when a leading edge of said document is detected by either said sensor or said camera, and stops image capture when a trailing edge of said document is detected by either said sensor or said camera; and 2) turns off a drive mechanism when a leading edge of said document is detected by either said sensor or said camera, and starts a drive mechanism when a trailing edge of said document is detected by both said sensor and said camera.