发明名称 Jam suppressing sheet feeding device and image forming apparatus
摘要 A sheet feeding apparatus includes a sheet tray, a pickup roller, a feed roller, a driving motor to drive the feed roller via a feed clutch, and a reverse roller connected to a reverse shaft driven by the driving motor via a torque limiter. The feed clutch is turned OFF when a trailing edge of a sheet passes through a nip formed between the feed and reverse rollers so as to disconnect the driving motor in order to enable the feed roller to freely rotate. The rotation of the reverse shaft is transmitted to the reverse roller by the operation of the torque limiter so as to enable the reverse roller to rotate and return the next sheet nipped by the reverse and feed rollers in a counter sheet feeding direction.
申请公布号 US7354038(B2) 申请公布日期 2008.04.08
申请号 US20030894244 申请日期 2003.11.26
申请人 RICOH COMPANY, LTD. 发明人 WATASE HIROYUKI
分类号 B65H5/00;B65H3/06;B65H3/52 主分类号 B65H5/00
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