A three side trimmer has a trimming unit 1, an accumulating unit 3, a discharge unit 2 and a conveying mechanism 4 conveying trimmed booklets BK to the accumulating unit. The accumulating unit has a shelf 5 movable in a vertical direction, and a drive roller conveyor 7 on the shelf. The accumulating unit, in a mode, delivers the trimmed booklets to the discharge unit at every accumulation of a predetermined number of the trimmed booklets and, in another mode, accumulates the trimmed booklets without delivering.

A device for offsetting sheets as they are conveyed in a paper path toward a stacker includes a narrow channel mounted to a set of linked arms which when moved in a process direction (upstream-downstream) articulate in a cross process direction (inboard-outboard) to register the sheets at various locations for stacking or finish processing. The linked arms keep the channel parallel to the paper path at all times regardless of inboard-outboard offset.

A method of grouping sheet units, which belong together in sheet groups, a sheet stream comprising two superposed sheet units each by means of a grouping unit, a grouping unit for a sheet handling system, and a sheet handling system that allow a high processing speed and a high cycle efficiency of a sheet handling system are disclosed. A sheet unit can be held back in the grouping unit. Depending on whether the downstream subsequent sheet units transferred into the grouping unit belong to a sheet group, the held-back sheet unit can be released by itself and together with one or together with both downstream subsequent sheet units.

Disclosed is a post-processing apparatus couplable to an image forming apparatus. The post-processing apparatus comprises: a paper discharging roller to convey, from a conveying path, a first paper discharged from the image forming apparatus, to a standby path connected to the conveying path, and convey the first paper from the standby path and a second paper discharged from the image forming apparatus from the conveying path, to an intermediate loading part, in a state in which a leading end of the first paper toward the intermediate loading part protrudes more than a leading end of the second paper toward the intermediate loading part to process the first paper and the second paper.

A sheet processing apparatus includes an intermediate tray on which a sheet is to be stacked, a stapler to execute stapling processing on the stacked sheet, a discharge tray on which the sheet subjected to the stapling processing by the stapler and discharged from the intermediate tray is to be stacked, a control unit, and a shift unit. The shift unit may shift the sheet to a position on the intermediate tray, wherein the position is outside of a range in which the stapling processing is to be executed. In a state where a first sheet and a second sheet are stacked on the intermediate tray and the second sheet is subject to the stapling processing, the control unit causes the shift unit to shift the first sheet on which the stapling processing is not executed, and causes the stapler to execute the stapling processing on the second sheet.

A medium processing device includes a discharge member, a discharge tray, a shift part and a control part. The discharge member is configured to discharge a medium from a discharge position in a discharge direction. On the discharge tray, the medium is stacked. The shift part is configured to vary a relative position of the discharge position and the discharge tray in a shift direction perpendicular to the discharge direction to shift a shift position where the medium is stacked on the discharge tray. The control part is configured to control the shift part so as to shift the shift position for each medium bundle containing a plurality of the mediums. The control part calculates a thickness of the medium bundle, and when the calculated thickness exceeds a first threshold value, the control part makes it possible to select a number of the shift position from a plurality of candidates.

A three side trimmer has a trimming unit 1, an accumulating unit 3, a discharge unit 2 and a conveying mechanism 4 conveying trimmed booklets BK to the accumulating unit. The accumulating unit has a shelf 5 movable in a vertical direction, and a drive roller conveyor 7 on the shelf. The accumulating unit, in a mode, delivers the trimmed booklets to the discharge unit at every accumulation of a predetermined number of the trimmed booklets and, in another mode, accumulates the trimmed booklets without delivering.

An apparatus and a corresponding method involve storing value documents, in particular bank notes, to a storage device and to a value-document processing system. A stacker wheel is arranged to receive value documents and dispense them one after the other. A transport device is arranged to receive the value documents dispensed one after the other by the stacker wheel and to transport them in such a way that the value documents come to lie on top of each other in a shingled manner. A storage device for storing the value documents lying on top of each other in a shingled manner is provided.

A post-processing device for processing a sheet includes a post-processing section for post-processing a sheet; a buffer section for temporarily staying a plurality of sheets at an upstream of the post-processing section; and a conveying section for conveying, one by one, the plurality of sheets stayed at the buffer section to the post-processing section.

A sheet stacking apparatus is provided. A conveyor unit performs stacking of sheets discharged from a printing apparatus and conveying of stacked sheets. A detection unit detects whether or not the printing apparatus is currently discharging a sheet. A control unit, so as to secure a stacking space for a sheet discharged from the printing apparatus on the conveyor unit, controls a feeding operation of the conveyor unit correspondingly to a period of time over which the detection unit detected that the printing apparatus is discharging a sheet.