JP2000280504A5 - - Google Patents

Description

[0035]
Further, both wing pieces 34 and 35 of the stopper and conduction member 30 are in contact with the holding pieces 21a and 21b at both ends of the movable frame 20, and the thermal head 3 is pressed against the movable frame 20 by the platen rollers 2a and 2b. Is assembled so that the tip of the plate spring 7 on the back side contacts. As a result, the housing of the drive motor 9a or 9b and the thermal head 3 are electrically brought to the same potential. Furthermore, as shown in FIG. 1, on the inner surface of the inner wall of the side wall 1b (1a) of the main body frame 1, the front end has a protrusion 51 whose tip projects from the side front wall 1f (1e). A sheet metal 50 formed so as to reach the mounting position of the drive motor 9b (9a) is attached respectively, and the drive motor 9b (9a) is fixed to the sheet metal 50 by a screw and a guide of the movable frame 20 The piece 25b (25a) is configured to be contactable. Thus, the drive motor 9a or 9b on the side where the stopper and conducting member 30 is not inserted and the movable frame 20 becomes the same potential via the metal plate 50. Then, by grounding them with a ground wire (not shown), damage to the thermal head due to static electricity and the like can be prevented.