| 摘要 |
PURPOSE:To make the mechanism of a driver for auto sheet feeder simpler and inexpensive by using a system in which a one-way clutch is provided to a transmission system, only a feed roller is turned by the one-way rotation of a pulse motor, and only a paper discharge roller is turned by the other-way rotation of the pulse motor. CONSTITUTION:When a pulse motor 13 turns clockwise, as shown in Fig., a one-way clutch 16 bites a shaft 15, and a feed roller 8 is turned. A paper sent out is directed toward a platen 2 under the guidance of guide plates 9 and 4. When the pulse motor 13 turns clockwise in this way, the one-way clutch 25 runs idle and the paper discharge roller 11 following a pulley 26 does not turn. On the other hand, when the printed paper is discarged, the pulse motor 13 is turned counterclockwise, the one-way clutch 16 runs idle, and a feed roller 8 does not turn. However, the one-way clutch 25 bites the shaft 15, the paper discharge roller 11 is turned through the pulley 26, etc., and paper-discharge operation is made. |
