发明名称 Sheet feeding device having movable sheet placing unit for use in a variable size multiplying type image forming device
摘要 A sheet feeding device, includes a lift down sensor for detecting a rotating plate of a rotatable cassette lowered down to a planar position, a lift up sensor for detecting the rotating plate lifted up to a sheet feeding position, a lateral feed position detecting sensor for detecting the rotatable cassette situated in the lateral feeding position, a longitudinal feed position detecting sensor for detecting the rotatable cassette situated in the longitudinal feeding position, and control means for controlling the drive mechanisms of the sheet feeding device. In the rotating operation of the rotatable cassette, if the lift down sensor is not turned on, the rotating plate is lowered so as to turn on the lift down sensor, thereafter the rotatable cassette is rotated to the predetermined longitudinal or lateral feeding position, and after the lateral or longitudinal feed position detecting sensor is turned on, the rotating plate is lifted up until the lift up sensor is turned on.
申请公布号 US5100122(A) 申请公布日期 1992.03.31
申请号 US19900520401 申请日期 1990.05.08
申请人 SHARP KABUSHIKI KAISHA 发明人 NODA, YOSHIYUKI;NARUKAWA, ATSUSHI;MATSUO, TOSHIHISA
分类号 B65H1/14;B65H1/04;B65H1/26;B65H3/44;G03G15/00 主分类号 B65H1/14
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