Abstract: According to one embodiment, a sheet post-processing apparatus includes: a standby unit configured to put a sheet on standby, the standby unit including a tray member on which the sheet is placed; a corrugation forming unit configured to form a corrugation in a direction orthogonal to a conveying direction on the sheet in the standby unit, the corrugation forming unit integrally provided with the tray member; and a processing unit disposed below the standby unit and configured to process the sheet supplied from the standby unit, wherein the corrugation forming unit includes: a projecting roller projecting upward from a conveyance reference plane in the standby unit; and a housing unit configured as a part of the tray member to house the projecting roller below the conveyance reference plane.

Abstract: In accordance with one embodiment, a sheet binding apparatus comprises a pasting section and a control section. The pasting section is capable of selectively carrying out pasting processing on at least one of a plurality of different given pasting target areas on sheets to be pasted. The control section controls the execution of the pasting processing based on the pasting section so that pasting target areas of a first sheet and a second sheet other than the first sheet within a plurality of sheets to be subjected to binding processing are different.

Abstract: According to an embodiment, a sheet processing apparatus includes a first tray, a second tray, a discharge member, and a guide. The guide is provided to the second tray and changes a transport angle of sheets with respect to the second tray when the sheets are sent from a transport path toward the discharge member without passing through the first tray.

Abstract: According to one embodiment, a sheet post-processing apparatus includes a standby unit, a processing unit, and a discharge unit. The standby unit puts a sheet on standby. The processing unit is disposed below the standby unit. The processing unit includes a conveyance reference plane, a distance between which and a conveyance reference plane for the sheet in the standby unit changes to decrease from an upstream side toward a downstream side in a conveying direction of the sheet. The processing unit processes the sheet supplied from the standby unit. The discharge unit is disposed on the downstream side in the conveying direction of each of the standby unit and the processing unit. The discharge unit is provided with an opening section for causing the sheet discharged from the standby unit or the processing unit to pass.

Abstract: In accordance with one embodiment, a sheet binding apparatus comprises a pasting section and a control section. The pasting section is capable of selectively carrying out pasting processing on at least one of a plurality of different given pasting target areas on sheets to be pasted. The control section controls the execution of the pasting processing based on the pasting section so that pasting target areas of a first sheet and a second sheet other than the first sheet within a plurality of sheets to be subjected to binding processing are different.

Abstract: According to one embodiment, a sheet post-processing apparatus includes a standby unit, a processing unit, and a discharge unit. The standby unit puts a sheet on standby. The processing unit is disposed below the standby unit. The processing unit includes a conveyance reference plane, a distance between which and a conveyance reference plane for the sheet in the standby unit changes to decrease from an upstream side toward a downstream side in a conveying direction of the sheet. The processing unit processes the sheet supplied from the standby unit. The discharge unit is disposed on the downstream side in the conveying direction of each of the standby unit and the processing unit. The discharge unit is provided with an opening section for causing the sheet discharged from the standby unit or the processing unit to pass.

Abstract: According to one embodiment, a sheet post-processing apparatus includes a standby unit, a processing unit, and a discharge unit. The standby unit puts a sheet on standby. The processing unit is disposed below the standby unit. The processing unit includes a conveyance reference plane, a distance between which and a conveyance reference plane for the sheet in the standby unit changes to decrease from an upstream side toward a downstream side in a conveying direction of the sheet. The processing unit processes the sheet supplied from the standby unit. The discharge unit is disposed on the downstream side in the conveying direction of each of the standby unit and the processing unit. The discharge unit is provided with an opening section for causing the sheet discharged from the standby unit or the processing unit to pass.

Abstract: A paper conveyance apparatus includes a roller pair including a drive roller and a driven roller configured to discharge a paper from a main body of an image forming apparatus. The paper conveyance apparatus further includes a corrugation component configured to abut against the paper discharged by the roller pair to corrugate the paper as the paper is discharged, and an elastic component configured to push the corrugation component against the discharged paper.

Abstract: In accordance with one embodiment, a sheet binding apparatus comprises a pasting section and a control section. The pasting section is capable of selectively carrying out pasting processing on at least one of a plurality of different given pasting target areas on sheets to be pasted. The control section controls the execution of the pasting processing based on the pasting section so that pasting target areas of a first sheet and a second sheet other than the first sheet within a plurality of sheets to be subjected to binding processing are different.

Abstract: A paper post-processing apparatus comprises a processing tray section; a post-processing section; a paper discharge tray section; a first chuck section configured to hold the rear end of the paper standing by in the buffer section; a second chuck section configured to hold the rear end of the paper loaded on the processing tray; and a third chuck section configured to hold the rear end of the paper loaded on the paper discharge tray; wherein a next paper is fed onto the paper held by the first chuck section in the buffer section, a paper is fed onto the paper held by the second chuck section from the buffer section in the processing tray section, and a paper is discharged onto the paper on the paper discharge tray held by the third chuck section from the processing tray section in the paper discharge tray section.

Abstract: According to one embodiment, a sheet processing apparatus includes: a paper feeding section configured to receive a sheet and feed the sheet; a detecting section configured to detect the fed sheet; a standby tray on which the fed sheet is stacked, the standby tray including a first roller configured to convey the sheet; a second roller configured to pivot to come into contact with and separate from the first roller; a processing tray on which the sheet dropped and supplied from the standby tray is stacked, the processing tray holding the sheet while requested processing is applied to the sheet; a paper discharge section configured to receive the sheet subjected to the processing and discharged from the processing tray; and a control section configured to separate the second roller from the first roller according to a result of the detection during conveyance of the sheet to the standby tray.

Abstract: According to one embodiment, a sheet processing apparatus includes: a paper feeding section configured to receive a sheet and feed the sheet; a detecting section configured to detect the fed sheet; a standby tray on which the fed sheet is stacked, the standby tray including a first roller configured to convey the sheet; a second roller configured to pivot to come into contact with and separate from the first roller; a processing tray on which the sheet dropped and supplied from the standby tray is stacked, the processing tray holding the sheet while requested processing is applied to the sheet; a paper discharge section configured to receive the sheet subjected to the processing and discharged from the processing tray; and a control section configured to separate the second roller from the first roller according to a result of the detection during conveyance of the sheet to the standby tray.

Abstract: According to one embodiment, a sheet processing apparatus includes a folding unit, a fold reinforcing roller, a driving circuit, and a controller. The folding unit folds a sheet bundle to form a fold. The fold reinforcing roller nips the fold of the sheet bundle having the fold formed thereon and conveyed to a fold reinforcing position, reciprocatingly moves along the direction of the fold, and reinforces the fold of the sheet bundle. The driving circuit drives the fold reinforcing roller along the direction of the fold. The controller controls the number of times of the reciprocating movement of the fold reinforcing roller on the basis of a value of an electric current of the driving circuit flowing when the fold reinforcing roller that starts driving from a standby position rides over an end of the sheet bundle.

Abstract: There is provided a sheet finishing apparatus according to an embodiment that includes an external wall with a discharge port of sheets, a movable tray on which the sheets discharged from the discharge port are stacked and which moves up and down along the external wall according to the number of stacked sheets, and a lubricant supply unit which moves up and down together with the movable tray and applies a lubricant to the external wall.

Abstract: A sheet folding apparatus includes a fold unit to fold a center of a sheet bundle to form a fold line, a reinforce roller which reciprocates along a direction of the fold line while nipping and pressing the fold line and reinforces the fold line of the sheet bundle, and a control section to changeably set the number of times of reciprocating movement of the reinforce roller according to a thickness of a sheet contained in the sheet bundle.

Abstract: A sheet folding apparatus includes a fold unit to fold a center of a sheet bundle to form a fold line, a reinforce roller which reciprocates along a direction of the fold line while nipping and pressing the fold line and reinforces the fold line of the sheet bundle, and a control section to changeably set the number of times of reciprocating movement of the reinforce roller according to a thickness of a sheet contained in the sheet bundle.

Abstract: There is provided a sheet finishing apparatus according to an embodiment that includes an external wall with a discharge port of sheets, a movable tray on which the sheets discharged from the discharge port are stacked and which moves up and down along the external wall according to the number of stacked sheets, and a lubricant supply unit which moves up and down together with the movable tray and applies a lubricant to the external wall.

Abstract: A sheet finishing apparatus according to an embodiment includes a discharge opening from which a sheet is discharged in an operation mode other than a manual stapling mode, and through which a bundle of sheets is manually inserted inside the discharge opening in the manual stapling mode, a stapler that is disposed inside the discharge opening and binds the bundle of sheets inserted from the discharge opening with staples, and a transverse alignment plate that aligns the sheet discharged from the discharge opening in a sheet discharge direction in the operation mode other than the manual stapling mode, and guides the bundle of sheets inserted from the discharge opening to a position of the stapler in the manual stapling mode. The transverse alignment plate emits light or exhibits fluorescence.

Abstract: An image forming apparatus including a sheet loader, the sheet loader including: a discharger configured to discharge a first sheet and a second sheet after the first sheet; a tray configured to support the second sheet on the first sheet; a support configured to support the first sheet on the tray; a controller configured to control the support to lower a first angle than a second angle, the first angle being an angle of the first sheet against a direction to which the discharger discharges the second sheet at a position where the second sheet hits on the first sheet, the second angle being an angle of the tray against the direction at a position where the first sheet hits on the tray.

Abstract: A sheet folding apparatus, including: sheet folder configured to fold a sheet bundle; a sheet bundle discharger configured to discharge a folded sheet bundle, folded by the sheet folder, with a folded edge of the folded sheet bundle in the lead; a folded edge support configured to support the folded edge of the folded sheet bundle discharged from the sheet bundle discharger, the folded edge support movable without rotation in a direction declined from a higher side near the sheet bundle provider to a lower side farther from the sheet bundle provider than the higher side; and an undersurface support configured to support an undersurface of the folded sheet bundle so that the folded edge is lower than a trailing edge of the folded sheet bundle, the undersurface support comprising a hill on its upper surface between the folded edge support and the sheet bundle provider, the hill comprising a slope between the folded edge support and the sheet bundle provider, the hill further comprising a valley wall declined st