| 摘要 |
PURPOSE:To permit the performance of light-weight and high-performance printing by using a system in which a normally and reversely turnable motor is used, a printing ribbon is driven by normal rotation of the motor, and a correcting ribbon is driven by the reverse rotation of the motor. CONSTITUTION:When a stepping motor 12 is turned in the direction full line arrow by the control of input pulse, a shaft 21 is stopped and the other shaft 18 is driven through a pinion gear 12a, a gear 15, a pulley 16, and a belt 20. Then, a print-correcting ribbon 8 is moved in the direction of arrow, an unit 11 turns around a shaft 9b to lift up the ribbon 8 to a print-correcting position, and print is corrected. Also, when the stepping motor 12 is turned in the reverse direction, or in the direction of broken line, by the control of input pulse, the rotation is not transmitted to the drive system to operate the correcting ribbon 8 but the printing ribbon is turned in the direction of broken line through the gear 14 and the shaft 21, and the printing ribbon is delivered. |
