Patent ID: 9221648
Filing Date: 2015-12-29
Classification: B31F,B65H

Abstract:
1. A sheet processing device comprising: a pressing device that presses a fold line part of a folded sheet bundle; and a moving device that moves a pressing position of the pressing device in a fold direction of the folded sheet bundle, wherein the pressing device includes a first pressing roller arranged on one side of a thickness direction of the folded sheet bundle, and a second pressing roller and a third pressing roller arranged on another side across the fold line part of the folded sheet bundle, the pressing device is arranged in a state in which each of a first line and a second line is not parallel to the thickness direction of the folded sheet bundle, the first line connecting a rotational center of the first pressing roller and a rotational center of the second pressing roller, and the second line connecting the rotational center of the first pressing roller and a rotational center of the third pressing roller, the second pressing roller and the third pressing roller are movable such that a distance between the rotational center of the second pressing roller and the rotational center of the third pressing roller changes only in the fold direction, and the fold direction is orthogonal to the thickness direction.