Patent ID: 7439994
Filing Date: 2008-10-21
Classification: B41J

Abstract:
1. A thermal transfer line printer comprising: a platen roller to which the driving force of a driving motor is transmitted, and that is rotationally driven in the forward rotation direction or reverse rotation direction; a line thermal head that is provided so as to face the platen roller and so as to be brought close to or separated from the platen roller; one pair of conveying rollers that are rotatably disposed with the platen roller therebetween; and a re-transmission mechanism that re-transmits the driving force, which is transmitted to the platen roller from the driving motor, to each of the one pair of conveying rollers, wherein the re-transmission mechanism includes a driving force transmission gear mounted on the platen roller, a driven roller mounted on each of the one pair of conveying rollers, and an intermediate gear that always meshes with both the driving force transmission gear and the driven roller, and each of the one pair of conveying rollers is formed so as to be rotationally driven in the same direction as the direction of rotation of the platen roller, and wherein the intermediate gear is rotatably supported by a gear supporting shaft, and the gear supporting shaft is adjusted in position so that both the center distance between the axis of the intermediate gear and the axis of the driving force transmission gear and the center distance between the axis of the intermediate gear and the axis of the driven roller can be adjusted.