发明名称 Sheet feeding device and image forming apparatus
摘要 A sheet supporting plate is vertically movably provided in a sheet feeding cassette, and a controller controls a lifting and lowering mechanism which lifts and lowers the sheet supporting plate based on basis weight information from an inputting portion. The controller stops the sheet supporting portion at a position where an abutting force causing a feeding roller biased by a feeding roller pressure spring to abut against a sheet is increased as the basis weight of the sheet is increased.
申请公布号 US8651477(B2) 申请公布日期 2014.02.18
申请号 US201213709415 申请日期 2012.12.10
申请人 CANON KABUSHIKI KAISHA 发明人 CHIBA YOSHINAO
分类号 B65H1/18 主分类号 B65H1/18
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