An objective of the present disclosure is to prevent paper sheets from being folded or damaged when the paper sheets are stacked. A paper sheet stacking mechanism (banknote stacking mechanism 50) includes stacking wheels 52, rotary rollers 54, a transport mechanism 70 configured to insert a paper sheet between vanes 52b of the stacking wheels, and a guide (center guide 55) having a guide surface 551 configured to guide the paper sheet. The guide surface has a curved shape having a diameter about a rotary shaft, and the diameter gradually increases from an upstream side toward a downstream side in a rotation direction of the stacking wheels.

A medium stacker includes a stacking portion, a rotary portion, a medium holder, a medium mover, and circuitry. The stacking portion has a stacking face to stack a sheet medium on which an image is formed. The rotary portion is configured to hold a leading end of the sheet medium in a sheet conveyance direction, reverse the sheet medium on the stacking face of the stacking portion, and convey the sheet medium. The medium holder is configured to hold the sheet medium when the sheet medium is conveyed by the rotary portion. The medium mover is configured to move the sheet medium to a predetermined position in a direction orthogonal to the sheet conveyance direction of the sheet medium while the sheet medium is held by the rotary portion. The circuitry is configured to control the rotary portion and the medium mover.

A unit for applying first and second tabs, obtained from first and second webs, to a chassis web includes an applicator drum rotatable about an axis and including a main body. A plurality of carriers is movable between a lowered position close to the axis and a raised position away from the axis, each including a suction portion. A first carrier first suction and non-suction portions aligned along the axis. A second carrier includes second suction and non-suction portions aligned along the axis. The first suction portions alternate with the second non-suction portions and the first non-suction portions alternate with the second suction portions. A first system holds the first web on the applicator drum upstream of a cutting device. A second system holds the second web on the drum upstream of the cutting device.

A single sheet handling device (14a to 14d, 30, 200, 252, 270, 350) for the input and the output of rectangular single sheets (38) respectively into and out of a container (12a to 12d). These rectangular single sheets can in particular be banknotes (38). The single sheet handling device (14a to 14d, 30, 200, 252, 270, 350) has a feeding device with feeding elements for the sheet-by-sheet feeding of single sheets (38) and for storing these single sheets (38) in a stack (36) of single sheets in the container (12a to 12d). Further, the single sheet handling device has a separating device with separating elements for the sheet-by-sheet removal of single sheets (38) of the stack (36) from the container (12a to 12d). The feeding elements and the separating elements are arranged separately from the container (12a to 12d).

A unit for applying first and second tabs, obtained from first and second webs, to a chassis web includes an applicator drum rotatable about an axis and including a main body. A plurality of carriers is movable between a lowered position close to the axis and a raised position away from the axis, each including a suction portion. A first carrier first suction and non-suction portions aligned along the axis. A second carrier includes second suction and non-suction portions aligned along the axis. The first suction portions alternate with the second non-suction portions and the first non-suction portions alternate with the second suction portions. A first system holds the first web on the applicator drum upstream of a cutting device. A second system holds the second web on the drum upstream of the cutting device.

An apparatus is disclosed. For example, the apparatus includes a paper feed to feed print media a single sheet at a time, a plurality of rotating discs, wherein each one of the plurality of rotating discs comprises an elastomer ring to secure a leading edge of the single sheet against a registration wall and initiate a flipping process, a plurality of fans to generate an air flow, wherein the air flow levitates a trailing edge of the single sheet during completion of the flipping process, and a movable platform to hold a stack of the print media.

An objective of the present disclosure is to prevent paper sheets from being folded or damaged when the paper sheets are stacked. A paper sheet stacking mechanism (banknote stacking mechanism 50) includes stacking wheels 52, rotary rollers 54, a transport mechanism 70 configured to insert a paper sheet between vanes 52b of the stacking wheels, and a guide (center guide 55) having a guide surface 551 configured to guide the paper sheet. The guide surface has a curved shape having a diameter about a rotary shaft, and the diameter gradually increases from an upstream side toward a downstream side in a rotation direction of the stacking wheels.