Patent ID: 8152161

Claim:
An image printing device comprising: a first transporting mechanism configured to transport a printing medium along a first path; a printing unit configured to perform image printing on the printing medium transported by the first transporting mechanism; and a second transporting mechanism configured to transport the printing medium, which is transported by first transporting mechanism and is performed image printing on a first surface thereof by the printing unit, to the first transporting mechanism along a second path; wherein the first transporting mechanism includes: first transporting rollers disposed at a position upstream of the printing unit and configured to transport the printing medium toward the printing unit; second transporting rollers disposed at a position downstream of the printing unit and configured to transport the printing medium, which is performed the image printing on the first surface thereof, in a first direction and then in a second direction opposite to the first direction; a first drive motor which rotates in a first rotational direction and a second rotational direction; and a transmitting mechanism configured to transmit a rotation in the first rotational direction of the first drive motor to both the first transporting rollers and the second transporting rollers such that the first transporting rollers transport the printing medium toward the printing unit and the second rollers transport the printing medium in the first direction along the first path, and further configured to transmit a rotation in the second rotation direction of the first drive motor to both the first transporting rollers and the second transporting rollers such that the second transporting rollers transport the printing medium in the second direction, wherein the second transporting mechanism includes: a second drive motor; and third transporting rollers configured to be driven by the second drive motor and configured to transport the printing medium, which is transported in the second direction by the second transporting rollers, toward the first transporting rollers along the second path; wherein a transporting force of the second transporting rollers for transporting the printing medium in the first direction is smaller than a transporting force of the third transporting rollers for transporting the printing medium.