SHEET PROCESSING APPARATUS AND IMAGE FORMATION SYSTEM

• Main Authors: KAWAKAMI TAKAKI, KUNIEDA AKIRA, KIDOURA YASUNOBU, HOTTA HIROSHI, AKAISHI RYOSUKE, HARAGUCHI YOSUKE, KUNO SATOSHI
• Format: Patent
• Language: English; Japanese
• Published: 28.08.2023
• Subjects: CINEMATOGRAPHY; CONVEYING; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; HOLOGRAPHY; MAGNETOGRAPHY; PACKING; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; STORING; TRANSPORTING

To allow multi-fed sheets to be easily taken out from an apparatus.SOLUTION: In a case where multi-feeding of overlapping sheets PJ is not detected by a multi-feeding detection sensor 61, the operation of an apparatus is stopped when the rear end of the overlapping sheets PJ cannot be detected even after the elapse of the first setting time T1 after detecting the tip of the overlapping sheets PJ. In a case where the multi-feeding of the overlapping sheets PJ is detected by the multi-feeding detection sensor 61, the operation of the apparatus is stopped when the rear end of the overlapping sheets PJ cannot be detected even after the elapse of the second setting time T2 set to be longer than the first setting time T1 after detecting the tip of the overlapping sheets PJ. In a case where the rear end of the overlapping sheets PJ can be detected before the elapse of the second setting time T2 after detecting the tip of the overlapping sheets PJ, the overlapping sheets PJ are conveyed toward a purge tray 55 without stopping the operation of the apparatus.SELECTED DRAWING: Figure 14 【課題】重送したシートを装置から容易に取り出すことができるようにする。【解決手段】重送検知センサ６１で重合シートＰＪの重送が検知されなかった場合には、重合シートＰＪの先端を検知してから第１設定時間Ｔ１が経過しても重合シートＰＪの後端を検知できないときに、装置を稼働停止している。これに対して、重送検知センサ６１で重合シートＰＪの重送が検知された場合には、重合シートＰＪの先端を検知してから、第１設定時間Ｔ１よりも長くなるように設定された第２設定時間Ｔ２が経過しても重合シートＰＪの後端を検知できないときに、装置を稼働停止して、重合シートＰＪの先端を検知してから第２設定時間Ｔ２が経過する前に重合シートＰＪの後端を検知できたときに、装置を稼働停止することなく、重合シートＰＪをパージトレイ５５に向けて搬送している。【選択図】図１４