6 Maintenance
Cleaning the Image Sensor
The digital camera has a self-cleaning sensor unit. Dirt and dust on the front surface of the imaging sensor are automatically removed when the power is turned on or off. This function makes it possible to remove the majority of dirt and dust that may interfere with images. It is not necessary to be aware of this function during normal usage.
To use the self-cleaning sensor unit for cleaning, follow the procedure below.
1Make sure that the power switch for the retinal camera is turned off.
2Switch the digital camera's power switch from on to off.
The self-cleaning sensor unit starts and the imaging sensor is cleaned.
3Check that the dirt and dust have been removed.
4Switch the digital camera's power switch to on, photograph an image and check the image.
If the above procedure does not remove the foreign object, the cause may not be dirt or dust. Contact your sales representative or local Canon dealer.
Cleaning the Outside of the CR-2
WARNING | • Before cleaning the CR-2, be sure to turn off the power of all connected devices and unplug the |
| power cord from the AC outlet. |
| • Do not use alcohol, benzine, thinner or any other flammable cleaning solvent. |
| Otherwise, fire or electric shock may result. |
| |
Do not clean the outside of the CR-2 with lens cleaner. It may corrode the material of the outside of the CR-2.
If the outside of the CR-2 is dirty, wipe it twice with a soft cloth. First use a cloth that has been soaked in diluted neutral cleanser and well wrung out. Then use a cloth that has been soaked in water and well wrung out.