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2 Safety
13
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. Use only for observing and taking photographs of peoples’ eyes.
Do not detach the digital camera from the main unit to use separately. Otherwise, failure of the
CR-2 may result.
• If any problems occur or repairs are needed with the CR-2’s digital camera, contact your sales
representative or local Canon dealer.
Before use
• Inspect the CR-2 daily. 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 of the retinal camera or the mirror of the digital camera when attaching and
detaching the digital camera from the retinal camera. If any dirt, fingerprints, dust, or other foreign
objects are on the lens or mirror, you will not be able to 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 their 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 disinfectant ethanol, 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 a 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 disinfectant ethanol to clean the outside of the CR-2, with the except of 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 manner
as you do for the forehead rest.
• Carry out all cleaning, sterilization and disinfection procedures specified in the instruction manual
for each peripheral device in the system.