A core (u1, u2) around which a nonaqueous electrolyte secondary battery separator is to be wound. A side surface of the core (u1, u2) has a depression (20). This makes it possible, in a case where cores (separator cores) are stored by being stacked while still wet after cleaning, to prevent damage to a core caused by a problem where cores stick together and an core lower in a stack falls when a core higher in the stack is removed.

A resin sheet includes a coating layer disposed at a contact portion at which the resin sheet contacts a surface mover having a surface that moves endlessly. A sheet conveying device includes a sheet conveying roller configured to convey a sheet, and the resin sheet. An image forming apparatus includes a sheet conveying roller configured to convey a sheet, and the resin sheet.

Provided are a rubber composition which is a base of a roller main body and capable of imparting favorable flexibility to the roller main body while maintaining high abrasion resistance to form, for example, a paper feeding roller that has a favorable paper feeding performance and can be used as a paper supply roller or the like; and a paper feeding roller in which the roller main body is formed using the rubber composition. There is provided a rubber composition contains a rubber that includes 20 to 80 parts by mass of a non-oil extended EPDM having an ethylene content of 55% to 72%, and an oil extended EPDM; and 20 parts by mass or less of a filler and 2.5 parts by mass or more of a peroxide crosslinking agent per 100 parts by mass of the rubber.

Provided are a rubber composition capable of imparting a high tensile strength to a roller main body so as to be able to be used for equipment that allows paper to pass through at high speed, while maintaining high abrasion resistance of the roller main body and a favorable paper feeding performance of the paper feeding roller; and a paper feeding roller. There is provided a rubber composition contains: a rubber that includes a non-oil extended EPDM having an ethylene content of 55 to 72%; and more than 20 parts by mass and 30 parts by mass or less of a filler, and 2.5 parts by mass or more of a peroxide crosslinking agent per 100 parts by mass of the rubber, in which the filler contains 15 to 30 parts by mass of an amorphous silica per 100 parts by mass of the rubber.

A system includes an image forming station, which is configured to apply droplets of one or more printing fluids to a target substrate, so as to form an image thereon, and a substrate conveyor, which includes one or more perforated plates having multiple openings, and is configured to grip and move the target substrate to and from the image forming station for forming the image, the substrate conveyor includes one or more rotatable elements, which are fitted in the respective openings, and are configured to provide mechanical support to the target substrate, and when the target substrate moves over the one or more rotatable elements, at least one of the rotatable elements is configured to rotate in response to a physical contact with the target substrate.

A sheet accommodating device includes a first plate member on which sheets are mounted, a first biasing member that presses up the first plate member, a second plate member disposed on a side of the first plate member opposite to a side of the first plate member on which the sheets are mounted; and a second biasing member that presses up the second plate member, and has a configuration in which, according to a size of the sheets, the first biasing member presses up the first plate member or both the first and second biasing members press up both the first and second plate members. An area of the first plate member is smaller than an area of the second plate member.

The present invention addresses the problem of providing a bill conveying roller base having an excellent swelling resistance. In order to solve this problem, the bill conveying roller base is provided with an elastic layer covering at least part of the outer peripheral surface, the elastic layer comprising a thermosetting polyurethane which is obtained by reacting polyol components containing a lactone-based polyol with polyisocyanate components containing methylene diphenyl diisocyanate (MDI).

An image forming apparatus includes a tray; a casing having a first outlet, a second outlet above the first outlet, a first path, and a second path; a stack lever; a drive source; and a controller. The second path communicates with the second outlet such that a sheet conveyed along the second path is partially discharged from the second outlet and is reversed along the second path. The first outlet communicates with the first path such that the sheet conveyed along the first path is discharged from the first outlet onto the tray. The stack lever is movable between a first position where the stack lever presses a sheet on the tray and a second position higher than the first position. The controller is configured to control the drive source such that, when the sheet is discharged from the second outlet, the stack lever is at the second position.

Disclosed is a paper-sheet-feeding/conveying roller having a shaft, and a bi-layer roller material which is formed of an inner layer provided on the shaft and an outer layer. The inner layer provided on the shaft is a foamed elastic layer. The outer layer provided on the foamed elastic layer is a non-foamed elastic layer. The foamed elastic layer is formed of a foamed elastic body of silicone-modified EPDM.

An image forming apparatus includes a first frame member and a second frame member which are aligned in a direction of a rotation axis of an image bearing member and faces each other across an image forming unit and a stacking unit. The first frame member includes a first portion including a first side surface facing the image forming unit and a second portion, which is fixed to the first portion, including a second side surface facing the stacking unit. The second frame member includes a third side surface facing the image forming unit and the stacking unit, and at least a part of the second side surface is provided in a position different from a position of the first side surface in the direction of the rotation axis of the image bearing member.