发明名称 SHEET FEED DEVICE AND IMAGE FORMING DEVICE
摘要 <p>When sheets are successively fed by a sheet feeding apparatus including a retard roller, the position of the leading end of each of the sheets being conveyed varies. Therefore, intervals between the conveyed sheets vary. When a retard roller 55 is rotating in a sheet feeding direction, the rotation is transmitted to a pickup roller 53 and the pickup roller 53 rotates in a direction for conveying the sheet. When the retard roller 55 is rotating in a direction opposite to the sheet feeding direction or is stationary, the pickup roller 53 does not feed the sheet. Therefore, in a successive feeding operation, the sheet to be fed next is always conveyed such that the leading end thereof reaches a nip position between a feed roller 54 and the retard roller 55. Therefore, the intervals between the sheets are uniform in the successive feeding operation.</p>
申请公布号 EP2455313(A4) 申请公布日期 2014.03.05
申请号 EP20090847304 申请日期 2009.07.13
申请人 CANON KABUSHIKI KAISHA 发明人 MATSUSHIMA AKIRA;UCHIDA YASUHIRO;OKAZAKI SHUNSUKE;KAWANISHI MINORU;WATANABE KENJI;FURUSAWA MOTOHIRO
分类号 B65H3/52;B65H1/26;B65H3/06;B65H7/02;B65H7/18 主分类号 B65H3/52
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