Sheet transport device and image forming apparatus

摘要

A sheet transport device and an image forming apparatus using the sheet transport device are disclosed. The sheet transport device includes a transport belt rotating around rollers that transports a sheet by attaching the sheet to the transport belt by an electrostatic force, and charging unit that is unitized by including a charging member for charging the transport belt. The charging unit includes a unit case containing springs for pushing the charging member onto the transport belt. An Ac bias voltage is applied to the transport belt via the charging member.