Patent ID: 7242901

Claim:
A document image scanning device, comprising: means for picking up an original document from a document placing part; means for separating and feeding the picked up original document one sheet at a time; a plurality of means for transporting the separated and fed original document along a transportation path to a discharge tray; a first scanning means for scanning an image on a first side of the original document transported along the transportation path, wherein the first scanning means is a movable scanner device and provided under a standstill standby state at a prescribed position on the transportation path for scanning the first side of the transported original document; and a second scanning means for scanning an image on a second side of the original document after the first scanning means, wherein the second scanning means is a contact image sensor and provided at a prescribed position on the transportation path for scanning the second side of the transported original document; wherein the plurality of means for transporting are classified into a first transportation system and a second transportation system, the first transportation system includes a picking up and a feeding of the original document upstream of the first scanning means, and the second transportation system is located front and back of the first and the second scanning means; and the first and the second transportation systems are respectively driven by a first and a second drive transmitting means, and the first and the second drive transmitting means are distributed from an output shaft of one motor to transmit a driving force.