A pressurized water closet operating system comprises an accumulator vessel for storing water and air under pressure. The bias layers are formed so as not to extend to the upper surface of the multilayer film. It is therefore possible to shift the transition position of the output light amount in excess of the distance corresponding to one pixel in recording an image, to record the image with accuracy. A second test pad is in the victim line. The present invention also provides a burst synchronization and error detection method.