Feeder, feeding method, and image forming apparatus

摘要

In one embodiment, there is provided a feeder that includes: a feed table on which a plurality of papers are staked in one direction, wherein some of the papers are bundled by a staple; a take-out module configured to sequentially take out the stacked papers from an outermost surface of the papers; a first detector configured to detect whether or not the staple exists in the papers within a distance h measured from the outermost surface; a controller configured to control the take-out module in a first mode or a second mode. When the staple is detected in the papers within the distance h, the controller controls the take-out module in the first mode. When the staple is not detected in the papers within the distance h, the controller controls the take-out module in the second mode.