Patent Number: 6,241,234

Title: Sheet processing apparatus and image forming apparatus using same

Abstract: A sheet processing apparatus has a first stacker for stacking discharged sheets; a feeder for feeding a set of sheets from the first stacker; and second stacker for stacking the set of sheets fed by the feeder. A shifting device shifts the sheets stacked on the first stacker and; a controller groups the sheets in a set into a plurality of groups of sheets, and stacks, shifts and feeds the sheets, for each group, to the first stacker, and stacks the set of sheets on the second stacker.

Inventors: Saitoh; Naho (Toride, JP), Takehara; Yoshifumi (Abiko, JP), Iwamoto; Kazuyuki (Kashiwa, JP), Hayashi; Kenichi (Kashiwa, JP), Kawata; Wataru (Kashiwa, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: B65H 33/08 (20060101); B65H 33/00 (20060101); B65H 033/04 (); B65H 039/02 (); B65H 039/05 (); B65H 039/07 ()

Expiration Date: 06/05/2018