Abstract: A charging roller for an image forming apparatus is provided, which includes a shaft, an elastic layer disposed around the shaft, and a coating layer formed on the elastic layer, wherein the coating layer includes a urethane resin formed by crosslinking of a polyol mixture with polyisocyanate, and the polyol mixture includes polyester polyol and polyether polyol having 60% by weight or more and 90% by weight or less of an ethylene oxide content.

Abstract: A charging roller for an image forming apparatus is provided, which includes a shaft, an elastic layer disposed around the shaft, and a coating layer formed on the elastic layer, wherein the coating layer includes a urethane resin formed by crosslinking of a polyol mixture with polyisocyanate, and the polyol mixture includes polyester polyol and polyether polyol having 60% by weight or more and 90% by weight or less of an ethylene oxide content.

Abstract: Disclosed is a toner supply apparatus that can be employed in an image forming apparatus to supply toner. The toner supply apparatus can include an electrically conductive body, on the surface of which multiple fibers is arranged. The fibers may include nylon 12 fibers containing a conductive material, such as, for example, carbon black.

Abstract: A method to produce a conductive transfer roller, and the transfer roller. The method to produce the conductive transfer roller includes adding and mixing a conductive substance, an ionic conductive agent, a vulcanizing agent, and a blowing agent and at least one of elastic materials selected from a group consisting of EPMD (ethylene propylene) rubber, NBR (acrylonitrile butadiene) rubber, ECO (epichlorohydrin ethylene oxide) rubber, and CR (chloroprene rubber), extruding the compound, blowing the extruded material by passing it through a continuous mobile foaming device, pressing the foam onto a shaft and applying a secondary curing, and grinding the foam to a desired thickness.

Abstract: Disclosed is a toner supply apparatus that can be employed in an image forming apparatus to supply toner. The toner supply apparatus can include an electrically conductive body, on the surface of which multiple fibers is arranged. The fibers may include nylon 12 fibers containing a conductive material, such as, for example, carbon Hack.

Abstract: A method to produce a conductive transfer roller, and the transfer roller. The method to produce the conductive transfer roller includes adding and mixing a conductive substance, an ionic conductive agent, a vulcanizing agent, and a blowing agent and at least one of elastic materials selected from a group consisting of EPMD (ethylene propylene) rubber, NBR (acrylonitrile butadiene) rubber, ECO (epichlorohydrin ethylene oxide) rubber, and CR (chloroprene rubber), extruding the compound, blowing the extruded material by passing it through a continuous mobile foaming device, pressing the foam onto a shaft and applying a secondary curing, and grinding the foam to a desired thickness.