シート折り装置及び画像形成システム

Japanese Patent JP7262223

B2

To improve the positional accuracy of a fold of a sheet folding device forming the fold on a sheet.SOLUTION: A sheet folding device C includes: a conveyance roller pair 33 which is arranged on the upstream side of a center conveyance path 42; a folding roller pair 34 which is arranged on the downstream side of the center conveyance path; a folding loop formation space 50 which is formed on the lower side of the center conveyance path; and a thrusting member 35 which is abutted with a prescribed position of the sheet suspended into the folding loop formation space from the center conveyance path and moves from the upstream side toward the folding roller pair. The folding roller pair 34 nips a prescribed position of the sheet fed from the thrusting member 35 by a nip part 39 to form a fold. Fold position adjustment means 120a controls the inversion of the folding roller pair 34 so that a fold formation reference part that is preset at a top portion of the sheet is located at the nip part 39 when the top portion of the sheet passes through the nip part 39 with the feeding operation by the normal rotation of the folding roller pair 34 before the movement of the thrusting member 35.SELECTED DRAWING: Figure 9

Keiichi Atsumi
Akihito Sakano

JP2018245125A

April 21, 2023

December 27, 2018

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Canon Finetech Nisca Inc.

B65H45/18; B65H37/06; B65H43/08; B65H45/14; G03G15/00

JP2005067741A
JP2017128411A
JP2016108077A
JP5319684A
JP2002068583A

Yoshiaki Nishiyama
Akihiko Umeda
Masataka Niwa

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