Patent ID: 8613441

Claim:
A sheet transport device, comprising: a transport belt that rotates around rollers to transport a sheet by attaching the sheet on the transport belt by an electrostatic force; a transport guiding member that guides the sheet being transported by the transport belt: and a charging unit including a charging member that charges the transport belt by contacting the transfer belt in a region where the sheet is not; wherein the transport guiding member includes a curved guide surface to change a transporting direction of the sheet by approximately 90 degrees, the charging member is located between the transport belt and the curved guide surface of the transport guiding member, and at least a part of the transport guiding member is configured to detach together with the charging member as one unit from the sheet transport device; and wherein the rollers include a first roller and a second roller for rotating the transport belt, and the charging member is aligned linearly with the first and second rollers.