Patent ID: 7654527

Claim:
A document transporting and processing method used in an automatic document feeding mechanism of an image acquiring device, the automatic document feeding mechanism having an input tray, an input roller, an input passageway, an output passageway, an output roller, a scanning position and an output tray, the method comprising the steps of: (a) rotating the input roller to transport a leading edge of a first document from the input tray to the input passageway, the scanning position and the output passageway sequentially; (b) rotating the input roller to transport a leading edge of a second document from the input tray to the input passageway after a trailing edge of the first document deviates from the input roller; (c) rotating the output roller to transport the leading edge of the first document from the output passageway to the output tray, wherein the input roller and the output roller synchronously rotate in the steps (a) and (c); and (d) continuously rotating the output roller, after the trailing edge of the first document deviates from the scanning position, to transport the trailing edge of the first document to the output tray, generating a linear speed difference between the input roller and the output roller to generate a transporting speed difference between the first document and the second document and receiving a user input to generate an initiating instruction, and thus transporting the leading edge of the second document to the scanning position after the trailing edge of the first document deviates from the output roller according to the initiating instruction.