A folding apparatus includes a folding device to fold a sheet bundle, an additional folding device, a conveyer, and control circuitry. The additional folding device includes a pressure roller disposed downstream from the folding device in a sheet conveyance direction and configured to press the sheet bundle after the folding device folds the sheet bundle and a sheet support member disposed opposite the pressure roller via the sheet bundle. The conveyer conveys the sheet bundle to a position at which the additional folding device presses the sheet bundle and hold the sheet bundle at the position. The control circuitry causes the additional folding device to perform additional folding processing on a first position of the sheet bundle, the conveyer to move the sheet bundle to a second position different from the first position, and the additional folding device to perform the additional folding processing at the second position again.

A folding apparatus includes a folding device to fold a sheet bundle, an additional folding device, a conveyer, and control circuitry. The additional folding device includes a pressure roller disposed downstream from the folding device in a sheet conveyance direction and configured to press the sheet bundle after the folding device folds the sheet bundle and a sheet support member disposed opposite the pressure roller via the sheet bundle. The conveyer conveys the sheet bundle to a position at which the additional folding device presses the sheet bundle and hold the sheet bundle at the position. The control circuitry causes the additional folding device to perform additional folding processing on a first position of the sheet bundle, the conveyer to move the sheet bundle to a second position different from the first position, and the additional folding device to perform the additional folding processing at the second position again.

In accordance with an embodiment, a post-processing apparatus comprises a knocking section, a receiving section, a driving section and a pressing section. The knocking section knocks a staple in a sheet. The receiving section faces the knocking section. The receiving section receives the sheet in which the staple is knocked from the knocking section. The driving section can change an interval between the knocking section and the receiving section in an opposite direction in which the knocking section and the receiving section face each other. The pressing section extends continuously in a sheet width direction. The pressing section presses the sheet before the staple is knocked in the sheet.

There is provided a sheet processing apparatus including a conveyance unit configured to convey a sheet, a creasing unit configured to form a first crease and a second crease different from the first crease on the sheet, and a detection unit configured to detect a direction of the first crease. When a second crease is to be formed after the formation of the first crease by the creasing unit, a direction of the second crease with respect to a widthwise direction of the sheet is controlled based on a detection result of the detection unit.

Embodiments of a compressed and coreless roll of sheet product having a center indicator are disclosed. According to an embodiment of the present invention, a compressed coreless roll of sheet product is provided. The compressed coreless roll of sheet product includes a sheet product having a first end and a second end. The sheet product is wound about an axis beginning with the first end and ending with the second end to partially define an axial cavity along the axis. The first end includes an indicator that is visible when the sheet product roll is compressed such that the axial cavity is substantially collapsed.

A booklet processing apparatus includes a pressing member and a rotating unit. The pressing member presses a folded portion of a booklet formed to extend in one direction and having the folded portion on the downstream side in the one direction. The pressing member is provided so as to be rotatable about a rotary shaft that extends along the folded portion. The rotating unit rotates the pressing member so as to move a portion of the pressing member that confronts the folded portion downstream in the one direction so that the portion of the pressing member that confronts the folded portion is changed to a different portion.

A square back processing unit performs a square back process on the sheet bundle and includes a pair of clamp portions. The sheet bundle subjected to the square back process by the square back processing unit is discharged to a sheet bundle discharge unit. A cover unit is provided downstream of the square back processing unit in the conveyance direction such that a child access probe according to a safety standard IEC 62368-1 does not reach the pair of clamp portions in a case where the child access probe is inserted from an outside of the sheet processing apparatus.

In a method for processing a cushioning material strand, which is produced by a cushioning conversion machine from a web-shaped stock material (e.g. a roll or a leporello stack, for example of paper), the cushioning material strand is wound around a winding center into a cushioning material winding and is compressed during winding into the cushioning material winding.