Ventilated corona charging

摘要

A ventilated corona charging device for charging a charge receptor includes at least one corona wire to which a high voltage is applied, an electrically conductive shield which partly encloses the corona wire and a blower for directing a stream of air at least into a first region defined between the corona wire and the charge receptor, preferably also into a second region defined between the corona wire and the shield, in order to cause corona discharge which is uniform as well as stable.