A post-processing device includes an intermediate tray on which a medium transported in a transport direction is placed, a discharge port through which the medium post-processed on the intermediate tray is discharged, a discharge tray which is disposed in a gravity direction with respect to the discharge port and on which the medium discharged from the discharge port is placed, and an elevating mechanism which elevates the discharge tray, in which the elevating mechanism can move the discharge tray to a first normal position and a first standby position positioned in a direction opposite to the gravity direction with respect to the first normal position, and moves the discharge tray to the first normal position or the first standby position according to an amount of ink before the medium comes in contact with the discharge tray or the medium previously placed on the discharge tray.

A pusher plate stacking bin apparatus is provided for a valuable media depository. The apparatus comprising a pusher plate driven by a rack and pinion apparatus to stack a media item that is in a final position within the apparatus onto a media stacking platform. The media item is urged into the final position such that a trailing edge of the media item overhangs and rests on a fixed media guide and such that a leading edge of the media item overhangs and rests on a hinged media guide with a bottom surface of the media item elevated above the media stacking platform. The rack and pinion apparatus drives the plate past the media guides causing the hinged media guide to drop and the media item to fold along the leading edge as the media item is stacked onto the platform.

A pusher plate stacking bin apparatus is provided for a valuable media depository. The apparatus comprising a pusher plate driven by a rack and pinion apparatus to stack a media item that is in a final position within the apparatus onto a media stacking platform. The media item is urged into the final position such that a trailing edge of the media item overhangs and rests on a fixed media guide and such that a leading edge of the media item overhangs and rests on a hinged media guide with a bottom surface of the media item elevated above the media stacking platform. The rack and pinion apparatus drives the plate past the media guides causing the hinged media guide to drop and the media item to fold along the leading edge as the media item is stacked onto the platform.

An apparatus for overlapping and stacking sheets, the apparatus has a housing defining a stacking area and a travel plane for the sheets, a conveyor for transporting the sheets through the housing in a travel direction along a travel plane, and an overlapping device in the housing upstream of the stacking area for producing an overlapping stream of the conveyed sheets. A brake in the overlapping device slows the conveyed sheets of the overlapping stream. Stacking elements include stops projecting upward in the stacking area and serving to position a stack formed by the conveyed sheets of the overlapping stream. A separate frame carrying the stacking elements in the stacking area above the travel plane or extending to above the supply travel plane is mounted in the housing of the apparatus so as to be movable horizontally downstream in the direction away from the overlapping device.

An apparatus for overlapping and stacking sheets, the apparatus has a housing defining a stacking area and a travel plane for the sheets, a conveyor for transporting the sheets through the housing in a travel direction along a travel plane, and an overlapping device in the housing upstream of the stacking area for producing an overlapping stream of the conveyed sheets. A brake in the overlapping device slows the conveyed sheets of the overlapping stream. Stacking elements include stops projecting upward in the stacking area and serving to position a stack formed by the conveyed sheets of the overlapping stream. A separate frame carrying the stacking elements in the stacking area above the travel plane or extending to above the supply travel plane is mounted in the housing of the apparatus so as to be movable horizontally downstream in the direction away from the overlapping device.

In a sheet storage apparatus, a shift trajectory between an aligning position on a load surface and a waiting position above the tray is short, and the shift operation does not cause misregistration of aligned sheets, wherein a regulation member strikes and regulates a sheet carried onto the load surface, and a trajectory is set to displace to the regulation member side. The apparatus includes a transport path having a sheet discharge outlet, a tray member disposed on the downstream side of the sheet discharge outlet and having a load surface of sheets, a regulation member disposed in the tray member to regulate an end edge in a transport direction, an aligning member including a side edge engagement surface engaging a side edge in a sheet width direction on the load surface, and a shift section shifting the side edge engagement surface between the waiting position and the aligning position.

In a sheet storage apparatus, a shift trajectory between an aligning position on a load surface and a waiting position above the tray is short, and the shift operation does not cause misregistration of aligned sheets, wherein a regulation member strikes and regulates a sheet carried onto the load surface, and a trajectory is set to displace to the regulation member side. The apparatus includes a transport path having a sheet discharge outlet, a tray member disposed on the downstream side of the sheet discharge outlet and having a load surface of sheets, a regulation member disposed in the tray member to regulate an end edge in a transport direction, an aligning member including a side edge engagement surface engaging a side edge in a sheet width direction on the load surface, and a shift section shifting the side edge engagement surface between the waiting position and the aligning position.

According to one embodiment, the sheet conveying device includes a tray, an elevating mechanism, a conveyance roller, and a resistance member. The tray stacks a plurality of sheets. The elevating mechanism lifts and lowers the tray in the stacking direction of a plurality of sheets. The conveyance roller conveys the plurality of sheets in the conveyance direction from the upper side in the stacking direction. The resistance member comes into contact with the leading ends of the plurality of sheets in the conveyance direction. The resistance member imparts a sliding resistance larger than that of the sheet stacking surface of the tray to the leading ends of the plurality of sheets that are lifted and lowered by the elevating mechanism.

According to one embodiment, the sheet conveying device includes a tray, an elevating mechanism, a conveyance roller, and a resistance member. The tray stacks a plurality of sheets. The elevating mechanism lifts and lowers the tray in the stacking direction of a plurality of sheets. The conveyance roller conveys the plurality of sheets in the conveyance direction from the upper side in the stacking direction. The resistance member comes into contact with the leading ends of the plurality of sheets in the conveyance direction. The resistance member imparts a sliding resistance larger than that of the sheet stacking surface of the tray to the leading ends of the plurality of sheets that are lifted and lowered by the elevating mechanism.

A dual-stage rapid sheet stacking system is provided. In one embodiment, the dual-stage rapid stacker comprises a landing platform and a first actuator configured to control a vertical position of the landing platform. A vertical position sensor is configured to monitor the vertical position of the landing platform. A CPU is configured to receive a signal from the vertical position sensor and, in response to the received signal, to send a corresponding command to the first actuator such that the first actuator maintains a minimum sheet drop distance. A sliding catch tray unit, is mounted on a plurality of suspension rails. The dual-stage rapid sheet stacking system comprises a second actuator configured to receive commands from the CPU to control a horizontal position of the sliding catch tray unit. The dual-stage rapid sheet stacking system is configured to stack a plurality of sheets on the landing platform and then discharge, a plurality of sheets through the sliding catch tray unit.