Nikon D5500 - Manual (Page 364)

340 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
(
0 338), 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 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).
4
Press J.
The message shown at right will be
displayed in the monitor.
5
Raise the mirror.
Press the shutter-release button all
the way down. The mirror will be
raised and the shutter curtain will
open, revealing the image sensor.