Nikon D3300 - Manual (Page 337)

317 Technical Notes
❚❚ Manual Cleaning
If foreign matter can not be removed from the image sensor
using the Clean image sensor option in the setup menu
(
0 314), 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.
A reliable power source is required when inspecting or
cleaning the image sensor. Be sure the battery is fully
charged before proceeding.
2
Remove the lens.
Turn the camera off and remove the lens.
3
Select Lock mirror up for cleaning.
Turn the camera on and press the
G
button to display the menus.
Highlight Lock mirror up for
cleaning in the setup menu and press
2 (note that this option is not
available at battery levels of
H or
below).
G button