A paper transportation device includes a paper guide body, which forms an
inner guide surface of a transportation path, side frames on which a
shaft of a transportation member disposed in the transportation path for
transporting an original document is mounted and a gear shaft of a drive
transmitting gear, which is provided in a standing condition on the side
frames and transmits rotation of a drive source to the shaft of the
transportation member. The paper guide body, the side frames and the gear
shaft are formed integrally by resin.