The present invention relates to a vane member for a paper sheet conveyance impeller, which includes a rotatable cylindrical member, the vane member being provided with: a vane member body comprising a thermosetting polyurethane elastomer; and a plurality of core wires which comprise polyester fibers and are arranged along the axial direction of a rotary shaft of the cylindrical member. At least a portion of the core wires is embedded within the vane member body. The vane member may be disposed so as to protrude from the external peripheral surface of the rotatable cylindrical member.

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 curved baffle positioned above the plurality of rotating discs and the single sheet, an air duct located above the plurality of rotating discs and the single sheet to force an air flow towards the curved baffle, wherein the air flow follows a shape of the curved baffle to create a low pressure zone above the single sheet to keep a trailing edge of the single sheet levitated during completion of the flipping process, and a movable platform to hold a stack of the print media.

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 curved baffle positioned above the plurality of rotating discs and the single sheet, an air duct located above the plurality of rotating discs and the single sheet to force an air flow towards the curved baffle, wherein the air flow follows a shape of the curved baffle to create a low pressure zone above the single sheet to keep a trailing edge of the single sheet levitated during completion of the flipping process, and a movable platform to hold a stack of the print media.

A paper sheet accumulating device includes an accumulating part in which paper sheets are accumulated, an impeller that sends the paper sheets to the accumulating part, and a support mechanism that supports the impeller. The support mechanism includes a first rotation shaft that supports the impeller rotatable, a support member provided with the first rotation shaft, a second rotation shaft that supports the support member rotatable in a direction of the support member moving toward and away from the accumulating part, and a biasing member that biases the support member in a direction of the impeller moving toward the paper sheets accumulated in the accumulating part.

A paper sheet accumulating device includes an accumulating part in which paper sheets are accumulated, an impeller that sends the paper sheets to the accumulating part, and a support mechanism that supports the impeller. The support mechanism includes a first rotation shaft that supports the impeller rotatable, a support member provided with the first rotation shaft, a second rotation shaft that supports the support member rotatable in a direction of the support member moving toward and away from the accumulating part, and a biasing member that biases the support member in a direction of the impeller moving toward the paper sheets accumulated in the accumulating part.

The paper sheet processing device includes a bladed wheel 10, a paper sheet supply/transport unit 30, 100, a stacking tray 50 that holds paper sheets emitted from the bladed wheel one by one in a stacked state, and an extraction area 80. The stacking tray includes a first stacking part 51 that stacks thereon paper sheets being emitted when at a paper sheet stacking position P1, and is rotationally moved to a non-stacking position P2 when a predetermined number of paper sheets are stacked thereon, and a second stacking part 61 that is moved to the paper sheet stacking position to stack paper sheets thereon when being rotated by a predetermined angle from the non-stacking position, and is rotationally moved to the non-stacking position when the predetermined number of paper sheets are stacked thereon.

The paper sheet processing device includes a bladed wheel 10, a paper sheet supply/transport unit 30, 100, a stacking tray 50 that holds paper sheets emitted from the bladed wheel one by one in a stacked state, and an extraction area 80. The stacking tray includes a first stacking part 51 that stacks thereon paper sheets being emitted when at a paper sheet stacking position P1, and is rotationally moved to a non-stacking position P2 when a predetermined number of paper sheets are stacked thereon, and a second stacking part 61 that is moved to the paper sheet stacking position to stack paper sheets thereon when being rotated by a predetermined angle from the non-stacking position, and is rotationally moved to the non-stacking position when the predetermined number of paper sheets are stacked thereon.

During flipping sheets may fold upon themselves under the influence of gravity. To prevent a sheet stacker is provided with a support device for supporting an inner surface of the sheet during flipping, the support device comprising a plurality of flexible fingers elements of different length, each configured to support a different inner area of the sheet during its flipping motion.

During flipping sheets may fold upon themselves under the influence of gravity. To prevent a sheet stacker is provided with a support device for supporting an inner surface of the sheet during flipping, the support device comprising a plurality of flexible fingers elements of different length, each configured to support a different inner area of the sheet during its flipping motion.

A method for evaluating stacking or sorting integrity at an output device of a high-speed apparatus that processes media includes: acquiring an audio data substantially in real-time from the output device of the high-speed apparatus while the high-speed apparatus is in operation, by use of an audio sensor located at the output device; transforming by a processor, the audio data to into a stacking or sorting integrity value; and if the stacking or sorting integrity value exceeds a predetermined threshold, stopping by the processor a document transport of the high-speed apparatus. An apparatus for evaluating stacking or sorting integrity at an output device, and a system for evaluating stacking or sorting integrity at an output device of a high-speed apparatus are also described.