Canon CF-1 - Manual (Page 20)

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2. Notes for Using the Instrument
Before Use
• Take a daily test image to ensure that there is no foreign matter present that can affect image readings.
• Check and clean the objective lens before taking an image, as any stains or scratches on it will appear
as white spots.
• Sudden heating of the room in cold areas will cause condensation to form on the objective lens or on
optical parts inside the instrument. In this case, wait until condensation disappears before performing
photography.
• Do not touch the lens of the main unit or the mirror of the digital camera when attaching and detaching
the digital camera from the main unit.
If any dirt, fingerprints, dust, or other foreign objects attach to the lens or mirror, you will not be able to
take a good image.
• Be sure to adjust the diopter of the viewfinder to match the diopter of the photographer’s eye. Otherwise,
focusing will not be able to be performed correctly.
After Use
• Turn OFF the power of the instrument. Place the cap over the objective lens, and place the dust cover
over the instrument.
You will not be able to take a good picture when the objective lens is dirty.
• If the EOS digital camera is removed and left unattached, dust and other foreign objects can enter the
main unit and the EOS digital camera. Always be sure to attach the caps to the respective mounts.
Cleaning and Disinfection
• Do not let the tip of a blower touch the objective lens.
• Do not wipe off or rub the objective lens when there is dust or other substances on it.
This could scratch the lens surface.
• Never wipe the objective lens with disinfecting ethanol, eyeglass lens cleaner, or cleaning paper
containing silicon.
The lens surface could be damaged or the surface may not be completely wiped off.
• Do not clean the cover of the instrument with lens cleaner. The cover of the instrument could be
damaged.
• Never use alcohol, benzine, thinner, or other solvents to clean the cover of the instrument. This could
damage the cover of the instrument.
• Never use disinfecting ethanol, glutaraldehyde or other solvents to clean the cover of the instrument,
except the forehead rest and the chin rest. This could damage the cover of the instrument.
• If the chin rest paper will not be used, be sure to disinfect the chin rest for each patient in the same
manner as for the forehead rest.
000_L-IE-5152E_CF-1.book Page 20 Monday, July 29, 2013 10:30 AM