05132741 is referenced by 35 patents and cites 8 patents.

A sheet original feeding apparatus comprises a sheet original stacking tray on which sheet originals to be treated are stacked as an original stack. A sheet original separator separates and supplies the sheet original one by one from the bottom of the original stack stacked on the sheet original stacking tray. A sheet original feeding path is provided for directing the sheet original separated by the sheet original separator. A sheet original feeder feeds in a forward direction the sheet original directed by the original feeding path to an image reading portion. The sheet original feeding means is also operable in a reverse direction, and the sheet original feeding path is arranged at one side of the sheet original feeder. A first sheet original ejecting path is further provided for returning the sheet original fed in the reverse direction by the sheet original feeder to the sheet original stacking tray from a same side of the sheet original feeder as the sheet original feeding path. A second sheet original ejecting path returns the sheet original fed in the forward direction by the sheet original feeder to the sheet original stacking tray. The second sheet original ejection path is arranged at a side opposite to the sheet original feeder means as the sheet original feeding path.

Title
Sheet original feeding apparatus and image forming system
Application Number
7/610045
Publication Number
5132741
Application Date
November 5, 1990
Publication Date
July 21, 1992
Inventor
Akimaro Yoshida
Tokyo
JP
Yuji Morishige
Yokohama
JP
Takeshi Honjo
Kawasaki
JP
Katsuaki Hirai
Kawasaki
JP
Noriyoshi Ueda
Yokohama
JP
Masataka Naito
Kawasaki
JP
Tadayuki Kitajima
Yokohama
JP
Agent
Fitzpatrick Cella Harper & Scinto
Assignee
Canon Kabushiki Kaisha
JP
IPC
G03G 15/00
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