Provided is a booklet finishing device including: a frame; a first pressing unit and a second pressing unit which are configured to move relative to each other in a thickness direction of the booklet and configured to press the front surface and back surface of the booklet respectively; a forming roller configured to press the spine portion; and a forming roller moving unit for moving the forming roller along the spine portion. The first pressing unit includes: a first movable component; and a first guide component having a plate-shape. A surface of the first guide component facing the second pressing unit includes: a first guide surface; a first contact surface; and a first corner-forming end portion.

Provided is a booklet finishing device including: a frame; a first pressing unit and a second pressing unit which are configured to move relative to each other in a thickness direction of the booklet and configured to press the front surface and back surface of the booklet respectively; a forming roller configured to press the spine portion; and a forming roller moving unit for moving the forming roller along the spine portion. The first pressing unit includes: a first movable component; and a first guide component having a plate-shape. A surface of the first guide component facing the second pressing unit includes: a first guide surface; a first contact surface; and a first corner-forming end portion.

A printing system comprises: a printing unit configured to print an image on a sheet; and a control unit configured to control to perform creasing at a first pressure at a portion, corresponding to an edge of a spine cover, of the sheet on which the printing unit has printed the image, and perform creasing at a second pressure different from the first pressure at a portion of the sheet that corresponds to a hinge.

A bookbinding device includes a control unit for calculating set parameter values for a clamper and a processing unit on the basis of thickness on a book body to be bound, and initially setting the clamper and the processing unit in accordance with the set parameter values. The control unit includes an input unit for receiving an input of a reference parameter value for two or more different book body thicknesses; a function generation unit for generating, on the basis of the reference parameter value, a function for calculating a set parameter value that has been adjusted in accordance with the book body thickness; a parameter calculation unit for calculating, on the basis of the book body thickness, the set adjusted parameter value by using the function; and an initial setting unit for initially setting the clamper and the processing unit in accordance with the set adjusted parameter value.

A bookbinding device includes a control unit for calculating set parameter values for a clamper and a processing unit on the basis of thickness on a book body to be bound, and initially setting the clamper and the processing unit in accordance with the set parameter values. The control unit includes an input unit for receiving an input of a reference parameter value for two or more different book body thicknesses; a function generation unit for generating, on the basis of the reference parameter value, a function for calculating a set parameter value that has been adjusted in accordance with the book body thickness; a parameter calculation unit for calculating, on the basis of the book body thickness, the set adjusted parameter value by using the function; and an initial setting unit for initially setting the clamper and the processing unit in accordance with the set adjusted parameter value.

Techniques for creasing a cover of a case are described herein. In an example, a creasing tool includes a first plate portion and a second plate portion substantially parallel to the first plate portion such that the first plate portion and the second plate portion define a slot between the first plate portion and the second plate portion for creasing a cover of a case.

An image forming apparatus determines whether crease processing at a plurality of portions set on the sheet includes crease processing on two, front and back surfaces of the sheet; determines, if it is determined that crease processing includes crease processing on the two surfaces of the sheet, whether a connected post-processing apparatus that performs crease processing on a sheet can perform crease processing on the two, front and back surfaces of the sheet by one feeding; and controls, if it is determined that the connected post-processing apparatus cannot perform crease processing on the two surfaces by one feeding, to change, to one of the front and back surfaces of the sheet based on attribute information of the sheet, a surface to be processed in crease processing at the plurality of portions.

An assembly for realizing in continuous covering jackets of book elements of different dimensions starting from a film wrapped up in a coil. The assembly includes a mechanism for cutting the film unrolling from the coil for realizing pieces of the film; a first folding device of a first end of the pieces; a second folding device of a second end of the pieces; a control and command unit and a longitudinal welder suitable for both superiorly and inferiorly closing folded pockets and for regulating the height of the cover itself by trimming the parts in excess.

A binding processing apparatus includes a pair of pressing members each including a concave-convex portion configured to form a concave part and a convex part in a recording material bundle. The concave-convex portion includes protrusion portions. Aside surface of each protrusion portion is inclined so that the protrusion portion is widened from an apex of the protrusion portion. The side surfaces of the protrusion portions of a first pressing member that is one of the pressing members and the side surfaces of the protrusion portions of a second pressing member that is the other of the pressing members intersect with each other during pressing when viewed in a column direction of the protrusion portions.

A binding processing apparatus includes a pair of pressing members each including a concave-convex portion configured to form a concave part and a convex part in a recording material bundle. The concave-convex portion includes protrusion portions. Aside surface of each protrusion portion is inclined so that the protrusion portion is widened from an apex of the protrusion portion. The side surfaces of the protrusion portions of a first pressing member that is one of the pressing members and the side surfaces of the protrusion portions of a second pressing member that is the other of the pressing members intersect with each other during pressing when viewed in a column direction of the protrusion portions.