Canon CR-2 - Manual (Page 13)

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, 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.