The present invention provides a plasma discharging treatment apparatus, comprising axfirst and second electrode for generating a plasma or corona, a transport path extending between the first and second electrode, wherein the second electrode comprises at least two rotatable transport rollers for transporting a cut sheet medium along the transport path, and wherein a guide member is positioned between the at least two transport rollers to define the transport path between the at least two transport rollers. The invention further provides a method for the plasma or corona treatment of cut sheet media.