The present invention relates to a back print type ink jet recording sheet, and, particularly, an object of the invention is to provide an ink jet recording sheet coping with oily ink. At least one pair of wheels is power driven. The heat diffusion sheet is provided with a graphite sheet and a resin film and, in some cases, a thin metal plate. A sensor is then programmed to sense the evoked responses with the selected evoked response sensing electrode configuration. The longitudinal displacement is measured by another light beam projected by the beamsplitter onto a second position sensitive detector. Further the receiver includes a first propeller driven by a free power turbine and the toothed drive wheel is attached on an outer case of this power turbine.