US 12,252,370 B2
Method for conveying sheet in post-processing apparatus
Takuro Mita, Kanagawa (JP); and Taro Ishifune, Shizuoka (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 31, 2023, as Appl. No. 18/194,430.
Claims priority of application No. 2022-068471 (JP), filed on Apr. 18, 2022.
Prior Publication US 2023/0331509 A1, Oct. 19, 2023
Int. Cl. B65H 39/10 (2006.01); B65H 29/12 (2006.01); B65H 29/60 (2006.01); B65H 33/00 (2006.01)
CPC B65H 39/10 (2013.01) [B65H 29/125 (2013.01); B65H 29/60 (2013.01); B65H 33/00 (2013.01); B65H 2511/416 (2013.01); B65H 2513/51 (2013.01); B65H 2515/40 (2013.01); B65H 2515/805 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A post-processing apparatus comprising:
a first conveyance path configured to receive a sheet that has been conveyed from a conveyance apparatus in a stage preceding the post-processing apparatus, and to convey the sheet;
a buffer unit configured to form a sheet bundle constituted by a predetermined number of sheets by stacking the predetermined number of sheets conveyed from the first conveyance path while shifting the sheets in a conveyance direction;
a second conveyance path connected to the buffer unit and configured to convey the sheet bundle;
a post-processing unit configured to load the sheet bundle conveyed from the second conveyance path and to perform post-processing on the sheet bundle; and
at least one processor configured to perform operations including:
controlling conveyance of the sheets and the sheet bundle,
obtaining, in a case of a delay amount, a delay amount of the sheet conveyed from the conveyance apparatus in the stage or a delay amount of a preceding other sheet bundle conveyed from the buffer unit to the post-processing unit, and
setting a shift amount between plural sheets of the sheets constituting the sheet bundle in the buffer unit based on the delay amount obtained by the at least one processor.