Why does Eyebot not signal a defect when there is nothing on the screen?
Because there are no features. To get around this, turn on the pixel counter by turning to OPTION and pressing the YES button TWICE. ERASE and re-train Eyebot. Make sure that Eyebot does not learn anything on the screen or the pixel counter will not work, because it will learn that no pixels are acceptable. The pixel counter learns the acceptable range of pixels while Eyebot is in LEARN. When placed in TEST or RUN, Eyebot will alert you when either there is a large jump in the number of pixels or a large drop. The more narrow range of pixels you show Eye-bot, the more effective the pixel counter will work.