Simulated observation of the Crab nebula with one of the Suzaku XISs (chip width corresponds to 17 arcmin) using the burst option. The read-out direction is towards the bottom and the image is given in linear scaling. The evident asymmetric density of OOT events above and below the source is caused by the different speed of the two charge transfer processes before and after the science exposure of b = 0.094 s.