Patent ID: 8730537

Claim:
A duplex scanning apparatus, comprising: a passageway; a first optical module disposed on one side of the passageway; a second optical module disposed on the other side of the passageway; a transporting mechanism for transporting an original sheet through the passageway and past a first scan position of the first optical module and a second scan position of the second optical module, such that an image of a front side of the original sheet and an image of a reverse side of the original sheet are obtained; an elastic pressing member, disposed between the first scan position and the second scan position, for pushing the original sheet towards an original supporting plane; and a guiding structure, which is disposed on one of the two sides of the passageway, wherein a fixed end portion of the elastic pressing member is mounted to the guiding structure, and the fixed end portion is disposed between the first scan position and the second scan position.