Patent ID: 8366101

Claim:
A paper feeder, comprising: a paper feed table on which paper sheets are stacked; a paper feed roller, which is provided at a predetermined position above the paper feed table and driven in contact with an upper surface of an uppermost paper sheet of the paper sheets stacked on the paper feed table to feed the uppermost paper sheet in a paper feeding direction; a pair of paper detecting units, which is provided on a downstream side in the paper feeding direction with respect to the paper feed roller to respectively detect two end parts in a paper width direction of the paper sheet fed in the paper feeding direction; a pair of blowing units, which is provided along the paper width direction; and a control part controlling the pair of blowing units independently so that the pair of blowing units is controlled to be different in air quantity based on a difference in paper detection timing between the pair of paper detecting units to blow air below the uppermost paper sheet.