| 摘要 |
A sheet feeding apparatus with a buffer system is disclosed, in which a sheet feeding drum has a certain rotational speed regardless of the size of the sheet to feed a plurality of sheets to a sheet finisher and eject the sheets after exactly aligning them. The sheet feeding apparatus includes sheet feeding grips 36 a , 36 b , 36 c and 36 d provided on the outside of a sheet feeding drum 105 at certain intervals, and a sheet feeding grip controller (cam) 42 allowing the sheet feeding grips to selectively grip the sheets moving through the outside of the sheet feeding drum 105 . The sheets gripped by the sheet feeding grips are buffered by the end fence and are ejected to a sheet finisher through a sheet ejection path when the end fence is opened. The sheet feeding drum 105 includes a plurality of support rings 33 a , 33 b , 33 c, and 33 d arranged at certain intervals, sheet feeding rollers 34 a , 34 b , 34 c and 34 d respectively formed among the support rings, and a central shaft 35 fixing the support rings and the rollers, the sheet feeding grips being provided in the support rings.
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