US 12,298,699 B2
Image forming system
Noriyuki Monden, Shizuoka (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 14, 2023, as Appl. No. 18/183,254.
Claims priority of application No. 2022-041762 (JP), filed on Mar. 16, 2022.
Prior Publication US 2023/0297018 A1, Sep. 21, 2023
Int. Cl. G03G 15/00 (2006.01); G03G 21/20 (2006.01)
CPC G03G 15/6582 (2013.01) [G03G 15/5008 (2013.01); G03G 15/5029 (2013.01); G03G 15/6552 (2013.01); G03G 21/20 (2013.01); G03G 2215/00717 (2013.01); G03G 2215/00818 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An image forming system including an image forming apparatus, and a post-processing apparatus which is connected to a downstream side of the image forming apparatus in a conveyance direction of a sheet and which performs punching processing of forming a punch hole in a sheet conveyed along a conveyance path from the image forming apparatus, the image forming system comprising:
a punch unit, provided in the post-processing apparatus, which includes a punch member that performs the punching processing on the sheet conveyed from the image forming apparatus while the punch member rotates;
a surface property detection unit configured to detect a surface property of the sheet conveyed along the conveyance path toward the punch unit;
a basis weight detection unit configured to detect a basis weight of the sheet conveyed along the conveyance path toward the punch unit; and
a control unit configured to:
control conveyance of the sheet such that the sheet is conveyed to the punch unit at a conveyance speed corresponding to the surface property detected by the surface property detection unit,
control rotation of the punch member such that the punch member performs the punching processing on the sheet conveyed from the image forming apparatus while the punch member rotates at a rotation speed corresponding to the conveyance speed, and
control discharge of the sheet such that the sheet is discharged without the punching processing being performed on the sheet, in a case where the basis weight detected by the basis weight detection unit is greater than a basis weight threshold.