Title:
SHEET PROCESSING DEVICE AND IMAGE FORMING SYSTEM
Document Type and Number:
Japanese Patent JP2020026324
Kind Code:
A
Abstract:
To provide a sheet processing device capable of enhancing a folding quality in subjecting a sheet to four-folding.SOLUTION: A sheet processing device includes: a streaking device for subjecting a sheet to a streaking treatment of providing the sheet with folding lines; and a sheet folding device capable of folding the sheet subjected to the streaking treatment at the folding lines and subjecting the sheet staying in a folded state after subjected to a first streaking treatment to a second streaking treatment to thereby fold the sheet in four. The streaking device can perform a three line mode of subjecting a sheet PA to the streaking treatment at three positions of a position of a first folding line 21 folded by the first streaking treatment, a position of a second folding line 22 folded outside by the second streaking treatment, and a position of a third folding line 23 folded inside by the second streaking treatment, in the three line mode, a distance L2 between the position of the first folding line 21 and the position of the second folding line 22 is longer than a distance L3 between the position of the first folding line 21 and the position of the third folding line 23.SELECTED DRAWING: Figure 6
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Inventors:
YONENUMA MASAHIRO
Application Number:
JP2018150766A
Publication Date:
February 20, 2020
Filing Date:
August 09, 2018
Export Citation:
Assignee:
CANON FINETECH NISCA INC
International Classes:
B65H45/30; B65H37/06; B65H45/14
Attorney, Agent or Firm:
Kazuo Chikajima
Takashi Daejeon
Takashi Daejeon