Abstract: An automatic paper feeder automatically couples a plurality of pieces of folded long paper to each other and then continuously feeds the pieces. A conveyor, a reference surface, a pusher and a drive unit are provided in the feeder. The conveyor has a larger width than the long paper and is made of a material of low friction so as to convey the long paper. The reference surface is located near the side edge of the conveyor. The pusher is disposed opposite said reference surface and can be reciprocated toward and away from the reference surface. The drive unit is for moving the pusher. The pusher is moved by the drive unit to push the long paper onto the reference surface.