| 摘要 |
PURPOSE: A document paper feeding device of an ADF(Automatic Document Feeder) is provided to lower the cost of a device by decreasing the number of components such as springs for fixing and supporting an exit pinch roller with elasticity. CONSTITUTION: A document paper feeding device consists of a driving motor driven by a sensing signal of an ADF sensor(11); an ADF roller(12) feeding document paper(10) one by one by friction force of a rubber(20) pressed by a spring(19); a feed pinch roller(15) driven with friction to a feed roller(14) fixed on a body(13) to supply transfer force to the document paper; and a reading member(17) reading the document paper according to a sensing signal of an RP(Reading Point) sensor(16) for setting the reference position to read the document paper. An exit roller(22) is pressed with repulsive force generated by elastic deformation of an elastic shaft(23) for supporting an exit pinch roller(24). Thereby, an elastic member such as a spring for supporting the exit pinch roller or a connecting member such as a screw for fixing the spring on the body is not needed.
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