A post-processing apparatus includes a paper alignment tray including a loading table on which a paper is to be loaded, and a side guide and an end guide to align a side in a width direction and an end in a longitudinal direction of the paper stack, respectively, a first binder including a binding unit to bind the paper stack on the paper alignment tray in a stapleless manner, the first binder displaceable to a binding location to bind the paper stack and to a separation location to separate the binding unit from the paper stack, and a controller to move the paper stack relative to the binding unit while displacing the first binder from the binding location to the separation location.

A medium discharge includes a first tray having a first medium receiving surface, a second tray having a second medium receiving surface for receiving the medium discharged from the first tray, a discharge section that discharges the medium disposed on the first tray to the second tray, and a push-down portion that is located downstream of a downstream end of the first medium receiving surface in the medium discharge direction, and that is located at a place deviated from the discharge section in a width direction that is a direction intersecting with the medium discharge direction, and pushes down a part of an upstream end of the medium to be discharged in the medium discharge direction.

A post-processing apparatus includes a paper alignment tray including a loading table on which a paper is to be loaded, and a side guide and an end guide to align a side in a width direction and an end in a longitudinal direction of the paper stack, respectively, a first binder including a binding unit to bind the paper stack on the paper alignment tray in a stapleless manner, the first binder displaceable to a binding location to bind the paper stack and to a separation location to separate the binding unit from the paper stack, and a controller to move the paper stack relative to the binding unit while displacing the first binder from the binding location to the separation location.

A medium discharging apparatus includes a first tray in which a medium is received and placed, a second tray in which the medium discharged from the first tray is received, a discharging mechanism, a curl suppressing member, a link mechanism, a movement mechanism and a cam mechanism. The discharging mechanism discharges the medium from the first tray toward the second tray. The curl suppressing member suppresses curling of the medium discharged from the first tray to the second tray by the discharging mechanism. The curl suppressing member is provided in the link mechanism. The movement mechanism is configured to move the link mechanism and the curl suppressing member in both the discharge direction and a return direction opposite to the discharge direction. The cam mechanism guides movement of the link mechanism.

A media folding device includes a stacking portion on which media transported from an introduction path are placed; a folding roller pair that folds the media at a folding position after the media have been stacked in the stacking portion; and a bend forming mechanism that includes a first abutting portion configured to abut against a front end of the media, which are stacked in the stacking portion, in a transport direction, and a second abutting portion that is configured to abut against a rear end of the media, which are stacked in the stacking portion, in the transport direction, and that causes the folding position of the media to be nipped by the folding roller pair the folding roller pair by shortening the relative distance between the first abutting portion and the second abutting portion to bend the media toward the folding roller pair.

A medium transporting apparatus includes a mounting portion configured to mount a medium, and a pressing portion configured to switch between a first state for pressing the medium against the mounting portion and a second state for releasing the medium. The pressing portion takes the first state in waiting for the medium to the mounting portion, switches to the second state in response to the sent medium and returns to the first state after the medium is sent to the mounting portion. When the last medium is mounted on the mounting portion, a timing at which the pressing portion returns to the first state from the second state is delayed with respect to the timing of the return therebefore.

The aligning device receives a sheet conveyed in a sheet conveyance direction in a stackable manner and aligns a position of the sheet in the sheet conveyance direction. The moving mechanism moves the sheet aligned by the aligning device in the sheet conveyance direction together with the aligning device. The controller selectively executes a first mode in which first post-processing is performed on the sheet and then second post-processing is performed on the sheet and a second mode in which the second post-processing is performed on the sheet without performing the first post-processing on the sheet. The controller, in response to a selection of the first mode or the second mode, causes the moving mechanism to adjust a position of the aligning device in the sheet conveyance direction before the aligning device receives the sheet as a target of the first post-processing or the second post-processing, respectively.

An apparatus for treating a stack of sheets of sheet material includes a means for moving the stack of sheets of sheet material towards a first and second fold roller means. The first and second fold roller means are arranged to assist with folding of the stack of sheets of sheet material. The apparatus also includes a first and a second clamping jaw defining a gap. The first and second clamping jaws are arranged to be movable relative to each other to increase and decrease the gap for selective application of a clamping force to the stack of sheets of sheet material having passed between the first and second fold roller means. The first and second fold roller means are mounted in a manner allowing for an increase and decrease in separation and thus between a stack-guiding configuration and a stack compressing configuration.

A sheet cutting apparatus includes a cutting unit configured to cut a sheet, a blowing unit configured to send air toward the cutting unit, a container unit configured to contain scraps generated when the sheet is cut, a scrap path configured to allow the scraps travelling toward the container unit from the cutting unit to pass through, wherein the scrap path is formed of a member provided with openings for allowing the air sent by the blowing unit to pass through.

A media processing apparatus includes a media transporter, a stacking portion on which media are stacked, a binding processing portion that binds an upstream end portion of a media bundle, a pair of ejection rollers that eject the media bundle, and a displacement mechanism that displaces a first roller of the pair of ejection rollers to a nipping position at which the media bundle is nipped and a separated position at which the first roller is separated from the media bundle, in which, when the media bundle, the upstream end portion of which is closed, is to be ejected from the stacking portion, the first roller is disposed in the nipping position and ejection of the media bundle is started, the first roller is displaced to the separated position during ejection of the media bundle, and, thereafter, the first roller is disposed again at the nipping position.