A flexible and continuous substrates-conveying sheet has a plurality of to be processed substrates disposed on or in it. A nondestructive transferring unit includes a plurality of first transferring rolls and a plurality of second transferring rolls. The first transferring rolls make contact with a first surface of the substrates-conveying sheet where that surface can have electrostatically-induced charge formed thereon. Each of the first transferring rolls includes a first central portion charged with a positive electric charge and a first outer portion surrounding the first central portion. The second transferring rolls make contact with the first surface of the substrates-conveying sheet. The second transferring rolls are disposed alternately with the first transferring rolls. Each of the second transferring rolls includes a second central portion charged with a negative electric charge and a second outer portion surrounding the second central portion.

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.