A sheet transfer apparatus for transferring a sheet is provided with a back receiver section that rotates a sheet to transfer, and a support section that supports the back face of the back receiver section swingably. By this means, the back receiver section is capable of rotating smoothly.

A sheet transfer apparatus for transferring a sheet is provided with a back receiver section that rotates a sheet to transfer, and a support section that supports the back face of the back receiver section swingably. By this means, the back receiver section is capable of rotating smoothly.

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 post-processing device includes a carrying roller, a conveying member, a transporting member and a processing part. The carrying roller is configured to be rotated to carry a sheet one by one to a processing tray along a conveyance direction. The conveying member is configured to convey the sheet carried by the carrying roller to a receiving position on the processing tray. The conveying member has a rotation shaft and a plurality of contact pieces protruding from the rotation shaft so as to come into contact with the sheet carried on the processing tray. The contact piece is made of elastic material. The conveying member is rotated at a rotation speed higher than a rotation speed of the carrying roller when the sheet carried by the carrying roller is conveyed to the receiving position on the processing tray.

A post-processing device includes a carrying roller, a conveying member, a transporting member and a processing part. The carrying roller is configured to be rotated to carry a sheet one by one to a processing tray along a conveyance direction. The conveying member is configured to convey the sheet carried by the carrying roller to a receiving position on the processing tray. The conveying member has a rotation shaft and a plurality of contact pieces protruding from the rotation shaft so as to come into contact with the sheet carried on the processing tray. The contact piece is made of elastic material. The conveying member is rotated at a rotation speed higher than a rotation speed of the carrying roller when the sheet carried by the carrying roller is conveyed to the receiving position on the processing tray.

An image processing device includes: a fold unit that folds an adjustment sheet, in which an adjustment pattern including at least one line segment is formed, over the at least one line segment based on a predetermined reference fold position; an image reader that reads an image of the adjustment pattern of the adjustment sheet with the adjustment sheet folded by the fold unit unfolded; a position identifying unit that identifies, as a position of a fold line, a position of distortion of the at least one line segment or a predetermined position of an area which appears in the image of the adjustment pattern read by the image reader; and a fold position adjusting unit that adjusts a fold position of the fold unit based on a difference between the position of the fold line identified by the position identifying unit and the reference fold position.

An image processing device includes: a fold unit that folds an adjustment sheet, in which an adjustment pattern including at least one line segment is formed, over the at least one line segment based on a predetermined reference fold position; an image reader that reads an image of the adjustment pattern of the adjustment sheet with the adjustment sheet folded by the fold unit unfolded; a position identifying unit that identifies, as a position of a fold line, a position of distortion of the at least one line segment or a predetermined position of an area which appears in the image of the adjustment pattern read by the image reader; and a fold position adjusting unit that adjusts a fold position of the fold unit based on a difference between the position of the fold line identified by the position identifying unit and the reference fold position.

A book binding apparatus includes: a first processing section which is configured to perform a first process on a medium; a second processing section which is configured to perform a second process on the medium on which the first processing section has performed the first process; a first discharging section to which the medium on which the first processing section has performed the first process is discharged; and a second discharging section to which the medium on which the first processing section has performed the first process, and on which the second processing section has performed the second process is discharged.

A book binding apparatus includes: a first processing section which is configured to perform a first process on a medium; a second processing section which is configured to perform a second process on the medium on which the first processing section has performed the first process; a first discharging section to which the medium on which the first processing section has performed the first process is discharged; and a second discharging section to which the medium on which the first processing section has performed the first process, and on which the second processing section has performed the second process is discharged.