Black dots in each panel show the excursion in bias level measured on-ground in an RVS test device for the first, second, and third pixels after the flush/read transition as a function of the number of flushes beforehand. Red lines show fitted analytical calibration functions for each of the three pixels. Each panel presents a different pattern of flushes. The saturation effect after a large number of flushes is evident, as is the rapid recovery in the subsequent read pixels after the first (each of the three red lines). The data shown in the panel on the left also show the perturbation resulting from a glitch after a pause in the serial readout (see text). Figure adapted from Boudreault & Cropper (2011a).