The invention relates to a system intended to reduce the amount of NOx in the exhaust gases of a motor vehicle. A plurality of images are obtained continuously with the camera under specified image-taking conditions in response to a specified image-taking command, and the obtained images are stored on the image memory. Occurrences can include a thief or other unscrupulous party discovering which gaming machine printed ticket fields lend themselves to prediction and which do not, and then attempting to guess at some of the randomly generated numbers in hopes of coming up with a valid number or number set. A body region is in contact with the well region adjacent thereto.