US 12,443,134 B2
Booklet forming device and image forming apparatus
Taisuke Minagawa, Shizuoka (JP); and Kenji Takagi, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jun. 7, 2024, as Appl. No. 18/736,854.
Claims priority of application No. 2023-100817 (JP), filed on Jun. 20, 2023.
Prior Publication US 2024/0427269 A1, Dec. 26, 2024
Int. Cl. G03G 15/00 (2006.01); B42C 1/00 (2006.01); B42C 9/00 (2006.01); B42C 1/12 (2006.01)
CPC G03G 15/6541 (2013.01) [B42C 9/0081 (2013.01); G03G 15/6544 (2013.01); B42C 1/12 (2013.01); G03G 2215/00835 (2013.01); G03G 2215/00936 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A booklet forming device for forming a booklet by bonding a plurality of sheets, the booklet forming device comprising:
a sheet support portion configured to support sheet onto which a toner for bonding is applied; and
a bonding unit including a pressurizing member and configured to form a bonding layer by heating and pressurizing the sheets, supported by the sheet support portion, by the pressurizing member to melt the toner for bonding, and bond a pair of sheets to each other by the bonding layer,
wherein in a case of forming a first booklet including a first number of sheets, the bonding unit is operated under a first operation condition so that a thickness of the bonding layer positioned closest to the pressurizing member in the first booklet becomes a first thickness, and
in a case of forming a second booklet including a second number of sheets more than the first number of sheets, the bonding unit is operated under a second operation condition different from the first operation condition so that the thickness of the bonding layer positioned closest to the pressurizing member in the second booklet becomes a second thickness larger than the first thickness.