A retarding roller (a roller) is formed of a synthetic rubber (an industrial rubber material) such as ethylene propylene diene M-class rubber (EPDM) or polyurethane, or alternatively, silicone. The roller core of the retarding roller is cylindrical. M arc-shaped long holes (where M is an integer greater than or equal to 4) are formed in each of N layers (where N is an integer greater than or equal to 2) from a first layer (an outermost layer) to an Nth layer (an innermost layer) which are circular and concentric to a center axial line. In each layer, long holes are formed such that spokes in adjacent layers (an ith layer and an i+1th layer, where i is an integer from 1 to N1) do not overlap in the circumferential direction.

There is provided a roller including: a shaft, and an elastic body portion that is provided on an outer peripheral surface of the shaft, in which the elastic body portion includes a plurality of first recessed portions which are provided on one side of the roller in a shaft mounting direction at intervals in a circumferential direction of the roller and each have a bottom portion, and a plurality of second recessed portions which are provided on the other side of the roller in the shaft mounting direction at intervals in the circumferential direction of the roller and each have a bottom portion, and in which each of the first recessed portions is positioned between the adjacent second recessed portions in the circumferential direction of the roller in the side view of the roller in the shaft mounting direction.

A roller includes a shaft, and an elastic body portion that is provided on an outer peripheral surface of the shaft, in which the elastic body portion includes an inner peripheral portion which becomes a shaft side, an outer peripheral portion which becomes an outer side with respect to the inner peripheral portion, a plurality of first connection portions which connect the inner peripheral portion and the outer peripheral portion, and a plurality of second connection portions which are provided in a space portion between the adjacent first connection portions and which partition the space portion into one side and the other side of the roller in the axial direction, and in which the first connection portion is inclined in the same direction in a peripheral direction with respect to a radial direction of the roller.

A magnetic recording medium processing device may include a medium conveying passage; a magnetic head disposed to face the medium conveying passage from a first direction side and structured to perform at least one of reading of magnetic data recorded in the magnetic recording medium and recording of magnetic data to the magnetic recording medium; a conveying roller structured to contact with the magnetic recording medium from a second direction side to convey the magnetic recording medium; a rotation shaft to which the conveying roller is fixed; a drive mechanism structured to rotate the rotation shaft; and a counter roller disposed on a second direction side of the magnetic head so as to oppose the magnetic head. The counter roller may be rotatably held by the rotation shaft.

A sheet feeding apparatus includes a first rotary member to feed a sheet supported on a sheet supporter, a second rotary member to feed the sheet with a feeding force weaker than the first rotary member, and a third rotary member in contact with a separation member to separate the sheets fed by the first rotary member one by one. A drive transmission switches between a first drive transmission state in which a driving force from a motor to the first rotary member and the third rotary member is transmitted while the driving force from the motor to a second rotary member is cut off, and a second drive transmission state in which the driving force from the motor to the second rotary member is transmitted while the driving force from the motor to the first rotary member and the third rotary member is cut off.

Provided herein may be a pick-up roller with a front-edge alignment element and a media separation apparatus using the pick-up roller. The pick-up roller may include a pick-up element configured to pick up and transfer a media sheet, and the front-edge alignment element provided at a position opposite to the pick-up element. During a process of picking up a stacked media sheet and transferring it into a space between a feed roller and a separation roller unit, the front-edge alignment element may align in advance a front edge of a media sheet disposed subsequent to the medial sheet that is being transferred, to a position of the entrance between the feed roller and the separation roller unit, and thereafter, the pick-up element may pick up the media sheet aligned by the front-edge alignment element and transfer it into the space between the feed roller and the separation roller unit.

A sheet processing device includes a tape binding processing unit, a paper discharge unit, and a control unit. The tape binding processing unit performs tape binding processing on a sheet bundle. The paper discharge unit discharges the sheet bundle subjected to the tape binding processing onto a paper discharge tray. The control unit is configured to control at least one of the tape binding processing unit and the paper discharge unit, such that a first tape binding of the first bundle of sheets and a second tape binding of the second bundle of sheets are not in contact with each other when the first bundle of sheets and the second bundle of sheets are stacked on the paper discharge tray.

In a method for producing a collection (20) of pre-products by inserting a first pre-product (1) into a second pre-product (3), it is provided according to the invention that a first pre-product (1) and a second pre-product (3) are provided, wherein the second pre-product (3) has a wrapping fold (4) with a fold inner side (5). The second pre-product (3) is conveyed into an insertion position, in which the second pre-product (3) is opened and faces with the fold inner side (5) toward the first pre-product (1). The first pre-product (1) is conveyed into the opened second pre-product (3) and against the fold inner side (5) so as to form the collection (20), the second pre-product (3) assumes the conveying direction of the first pre-product (1), and the collection (20) is provided for further processing.

In a method for producing a collection (20) of pre-products by inserting a first pre-product (1) into a second pre-product (3), it is provided according to the invention that a first pre-product (1) and a second pre-product (3) are provided, wherein the second pre-product (3) has a wrapping fold (4) with a fold inner side (5). The second pre-product (3) is conveyed into an insertion position, in which the second pre-product (3) is opened and faces with the fold inner side (5) toward the first pre-product (1). The first pre-product (1) is conveyed into the opened second pre-product (3) and against the fold inner side (5) so as to form the collection (20), the second pre-product (3) assumes the conveying direction of the first pre-product (1), and the collection (20) is provided for further processing.

A primer roller may include a cylinder having an outer support surface. The outer support surface support surface may have a length in an axial direction and a fixed outer diameter extending along the length. The roller may further comprise, at least at least one elastically deformable annular sleeve having an axial length less than the axial length of the support surface of the cylinder an external diameter greater than the outer diameter of the support surface of the cylinder, and an internal diameter which provides a friction fit on the support surface of the cylinder. The outer surface of the support roller comprises a plurality of fluid outlets. The outlets are distributed about the support surface. Fluid expelled from the fluid outlets enables the sleeve to be slidably positioned relative to the support surface. A priming apparatus and a print press are also disclosed.