SHEET MATERIAL PROCESSING DEVICE AND IMAGE FORMING SYSTEM

• Main Authors: TOMII FUTOSHI, ISHIKAWA NAOKI, FUKATSU YASUO
• Format: Patent
• Language: English; Japanese
• Published: 05.02.2015
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a sheet material processing device, improving spread property of a sheet material bundle that is stitched.SOLUTION: A sheet material processing device includes a folding stripe forming mechanism 550 which forms a folding stripe on a sheet material that is supplied from an image formation device, and a stitch mechanism 532 for stitching, at a predetermined stitching position, a sheet material bundle in which a plurality of sheet materials having been provided with a folding stripe by the stripe forming mechanism 550 are bundled. The stripe forming mechanism 550, with a position of a folding stripe formed closer to an end side than the stitching position on a first sheet material of the sheet material bundle as a reference position, forms a folding stripe at positions sequentially displaced by a predetermined correction amount to an end side from the reference position, on a second or following sheet material. 【課題】綴じられたシート材束の見開き性を改善できるシート材処理装置を提供する。【解決手段】シート材処理装置は、画像形成装置から供給されるシート材に折りスジを付けるスジ付け機構５５０と、スジ付け機構５５０により折りスジが付けられたシート材を複数束ねたシート材束を、所定の綴じ位置で綴じる綴じ機構５３２とを備える。スジ付け機構５５０は、シート材束の１枚目のシート材に対して綴じ位置よりも小口側に付けられた折りスジの位置を基準位置として、２枚目以降のシート材に対して、基準位置から小口側に順次所定の補正量ずつずらした位置に折りスジを付ける。【選択図】図２