| 摘要 |
PURPOSE:To prevent even a pressure-sensitive paper from being stained, by securing a movable frame with its pressing part brought into contact with a printing paper thereby to automatically control the gap between the paper surface and the distal end of a printer head. CONSTITUTION:A carrier 8 having a printer head 7 secured thereto, a guide 5 which moves the carrier 8 along a platen 3, and a pressing part 11 are mounted on a movable frame 1 so as to be unitized. The movable frame 1 is urged toward the platen 3 and supported movably. With the pressing part 11 brought into contact with a printing paper 19, the movable frame 1 is secured. The pressing part 11 and the distal end of the printer head 7 are in constant positional relation to each other. Therefore, the gap G between the surface of the paper 19 and the distal end of the printer head 7 is maintained at a constant. Even in the case of employing a pressure-sensitive paper, it is possible to prevent the paper from being stained through the pressure contact by th paper pressing part. |
