Canon EOS60D18135ISKIT User Manual (en)

Whenever you set the power switch to <1> or <2>, the Self 
Cleaning Sensor Unit operates to automatically shake off the dust on 
the front of the sensor. Normally, you need not pay attention to this 
operation. However, you can execute the sensor cleaning at anytime as 
well as disable it.
Select [Sensor cleaning].
Under the [6] tab, select [Sensor 
], then press <0>.
Select [Clean nowf].
Select [Clean nowf], then press 
Select [OK] on the dialog screen, 
then press <0>.
The screen will indicate that the 
sensor is being cleaned. Although 
there will be a shutter sound, a 
picture is not taken.
In step 2, select [Auto cleaningf] and set it to [Disable].
The sensor cleaning will no longer be executed when you set the 
power switch to <1> or <2>.
f Automatic Sensor Cleaning
Cleaning the Sensor Now
Disabling Automatic Sensor Cleaning
For best results, do the sensor cleaning while the camera bottom is 
placed on a table or other flat surface.
Even if you repeat the sensor cleaning, the result will not improve that 
much. Right after the sensor cleaning is finished, the [Clean nowf] 
option will remain disabled temporarily.