116 Menu GuideVibrate the image sensor to remove dust.Use this option to lock the mirror up so that dust that can not beremoved using Clean image sensor can be removed manuallyas described in the section on manual cleaning in the User’sManual. Note, however, that because the image sensor is easilydamaged, we recommend that manual cleaning be performedonly by a Nikon-authorized service representative.Clean Image SensorG button ➜ B setup menuOption DescriptionClean now Perform image sensor cleaning immediately.Clean at startup/shutdown• 5 Clean at startup: The image sensor is automaticallycleaned each time the camera is turned on.• 6 Clean at shutdown: The image sensor isautomatically cleaned during shutdown each time thecamera is turned off.• 7 Clean at startup & shutdown: The image sensor iscleaned automatically at startup and at shutdown.• Cleaning off: Automatic image sensor cleaning off.Lock Mirror up for CleaningG button ➜ B setup menu