Patent ID: 7589871

Claim:
An original transport and reading apparatus, comprising: an original transport apparatus having a transport path on which an original is transported, a first image reading unit that is arranged in opposition to the original transport apparatus and reads an image of a transported original at a first reading position that is demarcated along the transport path, a second image reading unit that is arranged on an inner side of a casing of the original transport apparatus and reads an image of a transported original at a second reading position that is demarcated along the transport path, a rotation support shaft that performs support so as to allow rotation of the second image reading unit centered on a rotational fulcrum that is arranged along a reading light path for reading an image at the second reading position, a rotational drive unit that drives so as to rotate the second image reading unit centered on the rotational fulcrum, and a curved original guide having a guiding surface that is curved in which the second reading position is set and that guides the original, wherein the guiding surface of the curved original guide is an arc whose constant radius is a distance between the second reading position and the rotational fulcrum.