Reference Manual

288 Technical Notes
Image Sensor Cleaning
If you suspect that dirt or dust on the image sensor is appearing
in photographs, the sensor can be cleaned manually as
described below. Note, however, that the sensor is extremely
delicate and easily damaged. Nikon recommends that the
sensor be cleaned only by Nikon-authorized service personnel.
1 Charge the battery or connect an AC adapter.
A reliable power source is required when inspecting or
cleaning the image sensor. Turn the camera off and insert a
fully-charged battery or connect an optional AC adapter and
power connector. The Lock mirror up for cleaning option is
only available in the setup menu if the camera is not
connected to a smart device via Bluetooth and the battery
level is over H.
2 Remove the lens.
Turn the camera off and remove the lens.
3 Select Lock mirror up for cleaning.
Turn the camera on and highlight
Lock mirror up for cleaning in the
setup menu and press 2.
4 Press J.
A message will be displayed in the
monitor.