| 摘要 |
PROBLEM TO BE SOLVED: To provide a post-treatment device for an image formation device capable of preventing generation of large impact sound and preventing damaging of a rear end in a conveying direction of sheet and peeling off of a toner image from the sheet by avoiding that a rear end in a conveying direction of a sheet bundle is violently abutted on a guide member along an outer periphery of a curved conveying passage when the sheet bundle passes through the curved conveying passage. SOLUTION: In the post treatment device for the image formation device having the curved conveying passage 18 in which the sheet bundle S superposed with a plurality of sheets is conveyed while being curved, when the sheet bundle S is passed through the curved conveying passage 18, bending reaction force absorption means 20, 23 for absorbing bending reaction force F generated on a rear end side in a conveying direction of the sheet bundle S are provided on the curved conveying passage 18. COPYRIGHT: (C)2007,JPO&INPIT
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