Abstract: A sheet processing apparatus includes a folding device to fold a sheet and a fold-enhancing device to press a folded portion of the sheet folded by the folding device to perform enhanced folding processing on the sheet whose trailing edge has exited the folding device.

Abstract: A sheet processing apparatus includes an entry portion, a sheet conveyance path extending from the entry portion, a skew correction roller pair that contacts a leading edge of a sheet conveyed in a predetermined direction from the entry portion to correct skew of the sheet, and a receiving path. The skew correction roller pair conveys the skew-corrected sheet in a direction opposite the predetermined direction. The receiving path branches from the sheet conveyance path from the entry portion to the skew correction roller pair to receive the sheet conveyed in the direction opposite the predetermined direction.

Abstract: A sheet processing apparatus includes a blade having a plurality of teeth aligned in a row, a mover to move in a direction in which the plurality of teeth is aligned and form a perforation in a sheet sandwiched by the blade and the mover, and a pressure device to press the mover toward the blade.

Abstract: 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.

Abstract: A sheet processing device includes: a stacking unit configured to stack a plurality of sheets to obtain a sheet bundle; a stitched-sheet number acquiring unit configured to acquire a number of sheets in the sheet bundle, which is a target to be stitched; a permanent stitching unit configured to permanently stitch the sheet bundle; a temporary stitching unit configured to be capable of temporarily stitching a plurality of areas of the sheet bundle; a selecting unit configured to select any one of the permanent stitching unit and the temporary stitching unit to be used; and a stitching-process control unit configured to, when the temporary stitching unit is selected by the selecting unit, control the temporary stitching unit so as to change a number of areas that are stitched by the temporary stitching unit.

Abstract: A sheet processing apparatus includes a pressing unit including a first pressing member and a second pressing member. The pressing unit is configured to sandwich and press a fold part of a folded sheet bundle between the first pressing member and the second pressing member. The sheet processing apparatus also includes a moving unit configured to move a position pressed by the pressing unit in a direction of a fold of the sheet bundle. A position pressed by the first pressing member on the sheet bundle and another position pressed by the second pressing member on the sheet bundle are shifted with respect to each other in the direction of the fold of the sheet bundle.

Abstract: A sheet processing apparatus includes a first binding unit configured to bind a sheet bundle; a second binding unit with greater number of bindable sheets than number of bindable sheets of the first binding unit; and a number-of-sheets determining unit configured to determine whether number of to-be-bound sheets exceeds the number of bindable sheets of the first binding unit. The first binding unit moves to a binding position, and if the number-of-sheets determining unit determines that the number of to-be-bound sheets exceeds the number of bindable sheets of the first binding unit, the first binding unit moves away from the binding position. When the number-of-sheets determining unit determines that the number of to-be-bound sheets exceeds the number of bindable sheets of the first binding unit, the second binding unit moves to the binding position.

Abstract: A sheet processing device includes: a stacking unit configured to stack a plurality of sheets to obtain a sheet bundle; a stitched-sheet number acquiring unit configured to acquire a number of sheets in the sheet bundle, which is a target to be stitched; a permanent stitching unit configured to permanently stitch the sheet bundle; a temporary stitching unit configured to be capable of temporarily stitching a plurality of areas of the sheet bundle; a selecting unit configured to select any one of the permanent stitching unit and the temporary stitching unit to be used; and a stitching-process control unit configured to, when the temporary stitching unit is selected by the selecting unit, control the temporary stitching unit so as to change a number of areas that are stitched by the temporary stitching unit.

Abstract: A sheet processing apparatus includes a first binding unit configured to bind a sheet bundle; a second binding unit with greater number of bindable sheets than number of bindable sheets of the first binding unit; and a number-of-sheets determining unit configured to determine whether number of to-be-bound sheets exceeds the number of bindable sheets of the first binding unit. The first binding unit moves to a binding position, and if the number-of-sheets determining unit determines that the number of to-be-bound sheets exceeds the number of bindable sheets of the first binding unit, the first binding unit moves away from the binding position. When the number-of-sheets determining unit determines that the number of to-be-bound sheets exceeds the number of bindable sheets of the first binding unit, the second binding unit moves to the binding position.

Abstract: A sheet processing apparatus includes: a conveying unit configured to convey a sheet along a sheet conveyance path; a conveyance-path supporting unit configured to support both ends of the sheet conveyance path with respect to a direction perpendicular to a sheet conveying direction; a first stitching unit configured to stitch the sheets conveyed; a second stitching unit configured to stitch the sheets conveyed; a first moving unit configured to move the first stitching unit in a direction perpendicular to the sheet conveying direction; and a second moving unit configured to move the second stitching unit in a direction perpendicular to the sheet conveying direction, wherein any one of the first stitching unit and the second stitching unit is movable to outside of the conveyance-path supporting unit.

Abstract: A paper binding device comprises: a pair of binding members that has a pair of teeth portions, and presses to bind a bundle of paper sheets; a moving unit that causes one of the pair of binding members to move along with the other of the pair of binding members between a binding position at which the bundle of paper sheets is bound and a retracted position; a separating unit that moves coordinating with movement of the one of the pair of binding members, and when the one of the pair of binding members moves from the binding position to the retracted position, that contacts with the bundle of the paper sheets and causes the bundle of paper sheets to separate from the one of the pair of binding members; and a restricting member that stops the separating unit at a restricting position between the binding position and the retracted position, when the one of the pair of the binding members moves from the binding position to the retracted position.

Abstract: A sheet processing apparatus comprises a pressing member configured to press a fold line portion of a folded sheet bundle; and moving unit configured to move a position of pressing by the pressing member in a direction of a fold line of the folded sheet bundle, wherein the moving unit is configured to stand by at a pressing start position in which the pressing member is in a non-pressing state, before the folded sheet bundle is conveyed to the pressing member.

Abstract: A sheet processing apparatus includes a pressing unit including a first pressing member and a second pressing member. The pressing unit is configured to sandwich and press a fold part of a folded sheet bundle between the first pressing member and the second pressing member. The sheet processing apparatus also includes a moving unit configured to move a position pressed by the pressing unit in a direction of a fold of the sheet bundle. A position pressed by the first pressing member on the sheet bundle and another position pressed by the second pressing member on the sheet bundle are shifted with respect to each other in the direction of the fold of the sheet bundle.

Abstract: A sheet processing apparatus includes a pressing unit including a first pressing member and a second pressing member. The pressing unit is configured to sandwich and press a fold part of a folded sheet bundle between the first pressing member and the second pressing member. The sheet processing apparatus also includes a moving unit configured to move a position pressed by the pressing unit in a direction of a fold of the sheet bundle. A position pressed by the first pressing member on the sheet bundle and another position pressed by the second pressing member on the sheet bundle are shifted with respect to each other in the direction of the fold of the sheet bundle.

Abstract: The present invention is concerning to a sheet processing apparatus comprising: a pressing member configured to press a folding line portion of a sheet bundle being folded; and a moving unit configured to move the pressing member to a folding line direction of the sheet bundle, wherein the pressing member pressurizes a part of the sheet bundle corresponding to a downstream side of a conveyance direction of the sheet bundle.

Abstract: A sheet processing apparatus includes a pressing unit including a first pressing member and a second pressing member. The pressing unit is configured to press a fold in a folded sheet bundle by holding the fold between the first pressing member and the second pressing member. The sheet processing apparatus also includes a moving unit configured to move a pressing position of the pressing unit in a direction of the fold in the sheet bundle; and a position changing unit configured to change relative positions of the first pressing member and the second pressing member in the direction of the fold in the sheet bundle.

Abstract: A sheet processing apparatus includes: a loading tray on which a sheet is loaded; a pair of ejection rollers that eject the sheet to the loading tray and in which a pair or roller members are configured to be able to contact with and separate from each other; a pair of shift rollers that is provided upstream of the pair of ejection rollers in a sheet conveyance direction, are movable in a sheet width direction that is a direction perpendicular to the sheet conveyance direction, convey the sheet towards the loading tray, and performs a shift operation of shifting the sheet to a different position in the sheet width direction; and a control unit that performs control to change, based on sheet information, a shift operation timing of the sheet by the pair of shift rollers and a contacting and separating timing of the pair of ejection rollers.

Abstract: A sheet processing apparatus comprises a pressurizing unit including a first pressurizing member and a second pressurizing member; and a moving unit moving the pressurizing unit and including a driving motor, wherein the position where a sheet bundle is pressurized by the first pressurizing member and the position where the sheet bundle is pressurized by the second pressurizing member are shifted in the direction of the fold line of the sheet bundle, and a driving condition of the driving motor is changed between a first orientation in which the pressurizing unit moves in the positional relation that the first pressurizing member precedes the second pressurizing member and a second orientation in which the pressurizing member moves in the positional relation that the second pressurizing member precedes the first pressurizing member.

Abstract: A sheet processing apparatus includes a flexure forming unit configured to flex sheets to include a portion on which no fold line is formed in a direction orthogonal to a sheet conveying direction; a first pressing member pair configured to press a flexure portion of the flexed sheets to form a fold line thereon; and a moving unit configured to move a pressing position of the first pressing member pair in the direction orthogonal to the sheet conveying direction.

Abstract: The present invention is concerning to a sheet processing apparatus comprising: a pressing unit configured to provide additional folding to a fold line portion of a sheet bundle by pressing the fold line portion; a carriage unit configured to reciprocate the pressing unit in width directions of the sheet bundle; a guiding shaft configured to support the pressing unit and guides movement of the pressing unit; and a supporting unit configured to support the pressing unit and moves on a structure provided to the sheet processing apparatus.