There is provided a printer which includes two rotatable bodies, two rotational drive mechanisms which drives the two rotatable body, respectively, two attaching mechanisms which attach a printing medium to the two rotatable bodies, respectively, an ink-jet head arranged to face one of the rotatable bodies, a transfer mechanism which has a first transfer path connecting the two rotational bodies with passing a facing area facing the two rotational bodies and a second transfer path connecting the two rotational bodies without passing the facing area, and a transporting control mechanism which controls the two rotational drive mechanisms to transfer the printing medium from one rotatable body to the other rotatable body via the first transfer path, and from the other rotatable body to the one rotatable body via the second transfer path.