A sheet conveying device includes a housing, an opening unit, and a drive rotator. The opening unit is openably close the housing, the opening unit including a driven rotator including first driven rollers at each end regions of an axis of the driven rotator, and a second driven roller at a center region of the axis. The drive rotator forms a conveyance roller pair with the driven rotator to convey a sheet. The second driven roller has an outer diameter greater than each of the first driven rollers.