Provision of a printing device having simple structure but being able to perform an exact and beautiful printing of designs and letters on a printed face of a doughnut-like shape such as a sidewall of a vehicular tire although.
The printing device having a turntable for turning a mounted printing object so that its printed face is directed upward, a printing head having a plurality of nozzles for spouting inks and being able to move toward a center of rotation of the printing object from outside the rotation of the printed face, and a controller provided for controlling a moving speed of the printing head, a rotating speed of the turntable, and spouting of the inks by the plurality of the nozzles, to perform a controlling operation in a manner such that a printing is spirally applied onto the printed face of the printing object by permitting the printing object mounted on the turntable to be rotated and by permitting the printing head to continuously move while allowing the plurality of the nozzles to spout therefrom the inks.