| 摘要 |
A bypass sheet feeding device including a sheet separation device composed of a semicircular sheet drive roller and a multi-feed prevention roller which is coupled to a torque limiter, is provided on a sheet bypass feeding unit. When an uppermost sheet of sheets stacked on a bypass sheet feed tray is fed by a feed roller, the circumferential surface of the drive roller comes into press contact with the multi-feed prevention roller, thereby the uppermost sheet only is separated and conveyed and at least a sheet below the uppermost sheet is prevented from being fed. After separation and conveyance of the uppermost sheet is completed, the drive roller is stopped at a position where the circumferential surface is located upward, which results in releasing press contact with the multi-feed prevention roller.
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