| 摘要 |
PURPOSE:To lower cost and to miniaturize a device, by mounting one-way clutches on rotary shafts on which platen rollers on a scanner side and a plotter side are fixed, respectively. CONSTITUTION:At the time of transmission, a motor 12a is driven in a direction of S. At this time, the one-way clutch 121 runs idly for a shaft 105a, thereby, no power is transmitted. Also, the one-way clutch 12n transmits the power of a gear 12m to a shaft 104a, then, drives the shaft 104a. When an image is received, the motor 12a is driven in a direction of R. At this time, the one- way clutch 12n transmits no power to the shaft 104a by running ldly. The one- way clutch 121 transmits the power of a gear 12k to a shaft 105a, then, drives the shaft 105a in the direction of R. Thereby, it is possible to make a mechanical component such as an electromagnetic clutch or the electronic component of 2 control circuit unnecessary.
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