Canon CR-2 User Manual download pdf (Page 13)

2 Safety

Notes on Using CR-2

Digital camera

• The attached digital camera is designed for the CR-2. The specifications differ from commercially

available Canon digital cameras, so it can be used only for observing and taking photographs of

peoples' eyes. Do not use the digital camera separately detaching from the main unit or it may

cause failure on the CR-2.

• If any problems with the CR-2's digital camera occur or repairs are needed, contact the Canon

representative or distributor from whom you purchased the CR-2.

Before use

• Inspect the CR-2 every day, make sure that no foreign matter is present that can affect image

readings or diagnoses.

• Check and clean the objective lens before taking an image. Any stains or scratches on the

objective lens will appear as white spots.

• Sudden heating of a room during winter or in cold regions may cause condensation to form on the

objective lens or on optical parts inside the CR-2. In this case, wait until condensation disappears

before taking images.

• Do not touch the lens part of the retinal camera or the mirror part of the digital camera when

attaching and detaching the digital camera from the retinal camera. If any dirt, fingerprints, dust, or

other foreign object is on the lens or mirror, you cannot take a good image.

After use

• After using the CR-2, turn off the power, cover the objective lens with the objective lens cover to

protect it from dust, and place the dust cover over the CR-2. You cannot take good images if the

objective lens is dusty.

• If the digital camera is detached and left unattached, dirt and dust may enter the retinal camera

and the digital camera. Be sure to always attach the caps to the respective mounts.

Cleaning and disinfection

• Do not allow the blower to touch the lens.

• Do not wipe or rub the lens if there is dirt or dust on it. Doing so could scratch the lens.

• Do not wipe the lens with ethanol solution, eyeglass cleaner, or silicone-coated paper. Doing so

could corrode the surface of the lens or leave streaks.

• Do not clean the outside of the CR-2 with lens cleaner. Doing so could damage the outside of the

CR-2.

• Never use alcohol, benzine, thinner, or other solvents to clean the outside of the CR-2. Doing so

damages the outside of the CR-2.

• Never use ethanol solution to clean the outside of the CR-2, except the forehead rest and the chin

rest. Doing so damages the outside of the CR-2.

• If the chin rest paper is not being used, disinfect the chin rest for each patient in the same way as

the forehead rest.

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Canon CR-2 User Manual Page 13