Sheet Conveyance Apparatus That Ensures Grounding of Discharging Member and Conveyance Roller with Simple Configuration, and Image Forming Apparatus Including the Same

摘要

A sheet conveyance apparatus includes a housing, a rotationally driven conductive shaft, a conveyance roller, a drive transmission unit, a conductive bearing member, a conductive discharging member, a cover member, and a conductive grounding member. The bearing member rotatably supports one end side of a shaft in a sheet width direction. The conductive discharging member is disposed in the openings. The discharging member discharges sheets by contacting the sheets. The cover member is secured to the sidewall along the one end side of the housing in the sheet width direction. The cover member includes a conductive grounding portion for electrical grounding. The conductive grounding member contacts the bearing member and the one end side of the discharging member along the sheet width direction. The grounding member conducts the bearing member and the discharging member to the grounding portion of the cover member.

主权项

1. A sheet conveyance apparatus comprising:
a housing including an opening through which sheet conveyed in a predetermined direction pass, and a pair of sidewalls, the housing being made of a resin material, the sidewalls being located at both end portions of the housing in the sheet width direction intersecting with a conveyance direction of the sheet; a rotationally driven conductive shaft extending in the sheet width direction in the housing; a conveyance roller secured to the shaft, the conveyance roller rotating to convey sheets so as to pass through the opening in association with the shaft rotating; a drive transmission unit provided on one of the pair of sidewalls along one end side in the sheet width direction, the drive transmission unit transmitting rotary drive power to the shaft; a conductive bearing member installed in the housing, the bearing member rotatably supporting the one end side of the shaft in the sheet width direction; a conductive discharging member disposed in the opening, the discharging member discharging sheet by contacting the sheet; a cover member secured to the one of the pair of sidewalls along the one end side of the housing in the sheet width direction, the cover member covering the drive transmission unit, the cover member including a conductive grounding portion for electrical grounding; and a conductive grounding member contacting the bearing member and the one end side of the discharging member along the sheet width direction, the grounding member conducting the bearing member and the discharging member to the grounding portion of the cover member.