A fuser and method of use for an electrophotographic imaging device that includes a lamp heater assembly; an endless fusing belt having a flexible tubular configuration and being positioned about the lamp heater assembly and spaced outwardly therefrom; a transparent or translucent pressure tube having an elongated tubular body and a pair of opposite ends, the body being substantially transparent to passage of radiant heat therethrough; a pressure tube support assembly having a frame and a pair of bearings mounted on the frame spaced apart from one another and supporting the pressure tube at the opposite ends of the tubular body thereof such that the tubular body of the pressure tube is positioned around the lamp heater assembly and inside the fusing belt and enables radiant heat generated by the lamp heater to pass through the transparent or translucent pressure tube and heat the fusing belt.