338 Technical NotesImage Sensor CleaningIf you suspect that dirt or dust on the image sensor is appearingin photographs, you can clean the sensor using the Clean imagesensor option in the setup menu. The sensor can be cleaned atany time using the Clean now option, or cleaning can beperformed automatically when the camera is turned on or off.❚❚ “Clean Now”Holding the camera base down, selectClean image sensor in the setup menu,then highlight Clean now and press J.The camera will check the image sensorand then begin cleaning. 1 flashes inthe viewfinder and other operations cannot be performed while cleaning is inprogress. Do not remove or disconnectthe power source until cleaning ends andthe setup menu is displayed.
