Image reading device and image forming apparatus using the same

摘要

An image reading device of the present invention includes a plurality of image sensors divided in a direction of document conveyance and a first and a second roller pair respectively positioned upstream and downstream of the image sensors in the direction of document conveyance. A stepping motor causes the first and second roller pairs to rotate. A document sensor is positioned upstream of the second roller pair in the direction of document conveyance for sensing the document. The rotation speed of the stepping motor is reduced when a preselected period of time expires or when a preselected number of drive pulses are counted since the document sensor has sensed the leading edge of the document.