Cure lamp shutter

A method of printing radiation curable material on an identification document, comprising:

• applying the radiation curable material to a surface of the identification document in a print station;
• after applying the radiation curable material, transporting the identification document to a curing station for curing the radiation curable material applied to the surface of the identification document, the curing station includes at least one radiation emitting device that is controlled to have an on state and an off state and that emits radiation when in the on state that is suitable for curing the radiation curable material applied to the surface of the identification document, and an aperture through which radiation emitted by the at least one radiation emitting device can travel toward the identification document;
• curing the radiation curable material applied to the surface of the identification document as the identification document is transported through the curing station in a transport direction, and controlling the at least one radiation emitting device so that the at least one radiation emitting device is actuated to the on state from the off state after the radiation curable material is applied to the surface of the identification document and prior to a leading edge of the identification document reaching the aperture, and so that the at least one radiation emitting device is actuated to the off state after a trailing edge of the identification document clears the aperture.