| 摘要 |
PURPOSE:To enhance the quality of printing by adjusting the heightwise position of a printing head by providing the first recessed coupler and the second projected coupler to be positioned on the rotary shaft side of bracket from the first coupler to the printing head. CONSTITUTION:When a regulating screw 111 is turned toward one-way direction, a lever 107 is moved toward one-way direction in a rocking manner. A stopper plate 109 supported on the lever 107 is moved in the heightwise direction of a printing head. The height of the head 31 whose first coupler 102 is connected with the plate 109 is adjusted with the movement of the plate 109. In this case, an elastic part 106 serving to push the head 31 downwards in the heightwise direction exactly positions the head 31 by preventing the occurrence of clearance in the couplement between the plate 109 and the coupler 102. Since the head 31 can be adjusted only by operating the screw 111, the operations can be made much easier. |
