| 摘要 |
<p>PURPOSE:To simplify a structure also improve paper feed performance by providing a single motor driving a separating roller and a platen roller rotated, and driving the motor controlled so as to generate output torque larger than load torque in accordance with changing the load torque applied to this motor. CONSTITUTION:In the case of executing to a document reader in a facsimile device, a document P is mounted on a document indicating surface 3 and inserted to an insertion port 4, and in the case that a paper sensor 13 is turned on, a drive motor is driven by a 1-2 phase excitation system, to deliver the document P in the lowermost part into a conveying passage 8 by rotating a separating roller 5. Next after a front end of the document P leads to between a platen roller 9 and an adhesion image sensor 10, the drive motor is driven by a 2-phase excitation system. When driven by this 2-phase excitation system, a rotational speed of the drive motor becomes half the speed, when the document is P provided between the roller 9 and the sensor 10, to generate large output torque, so as to surely perform conveying the document P.</p> |
