| 摘要 |
<p>A document feeding apparatus for feeding a document comprises at least one roller (16, 17, 18, 48,49, 49a, 50, 50a) for conveying sheets (15,47) of a document, a motor gear (1, 31) for providing drive to rotate the roller (16, 17, 18, 48, 49, 49a, 50, 50a); and a gear system adapted to transmit drive from the motor gear rotating at a substantially constant speed to the roller (16, 17, 18, 48, 49, 49a, 50, 50a) and to cause the roller (16, 17, 18, 48, 49, 49a, 50, 50a) to rotate at one of two or more speeds whereby the speed of rotation of the roller depends on the direction of rotation of the motor gear. Thus, the motor is driven at the same optimum speed whatever transmission mode, fine or normal, is selected. <IMAGE></p> |
