Patent ID: 7511865

Claim:
An image scanning apparatus comprising: a first feeding unit configured to feed a document; a second feeding unit configured to feed the feed the document which has fed by the first feeding unit; an image scanning unit configured to scan an image of the document at a scanning position provided between the first feeding unit and the second feeding unit; and a speed controller configured to set feed speeds of the first feeding unit and the second feeding unit; wherein the image scanning unit can scan an image of the document at a first scanning speed or a second scanning speed, and the speed controller sets the feed speed of the first feeding unit and the feed speed of the second feeding unit such that when the document is fed by both of the first feeding unit and the second feeding unit, a ratio of the feed speed of the first feeding unit to the feed speed of the second feeding unit when the document is scanned at the first scanning speed is different from a ratio of the feed speed of the first feeding unit to the feed speed of the second feeding unit when the document is scanned at the second scanning speed.