| 摘要 |
PURPOSE:To remove tacky adhesion simply and securely in a heat copying serial printer by a method wherein a thermal head is moved by the length of the tacky part between the recording paper and the copying paper from the final printing position. CONSTITUTION:The thermal head 1 prints compressing the copying tape 2, the recording paper 3 on a fixed platen 4. The copying tape is left from the recording paper 3 by means of tape guide pins 8a, 8b exclusive of the compressive zone of the thermal head. Counter CNT begins to count according to printing signals. After it counts intended clock pulses, flip flop FF is reset by the counted output, motor M is stopped and the thermal head can be let to overrun the final printing position A by a tacky length l to stop at B and then return. Accordingly, the tacky adhesion between the copying tape and the recording paper is removed securely and the recording paper is prevented from damage if the platen also is expanded to that extent. |
