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MAINTENANCE
CLEANING
Cleaning the dust cover, control panel and monitor screen
1 When the dust cover, control panel and monitor screen become stained,
clean them with a dry cloth.
2 If the dust cover is badly stained, prepare a tepid solution of neutral deter-
gent for kitchenware. Moisten the cloth with the aforementioned solution
and wring it thoroughly. Then, wipe the dust cover with the cloth.
Cleaning of the parts which contact with the patient
• Stain on forehead rest and chinrest
Mix the neutral detergent for kitchenware in tepid water. Moisten the cloth with
the aforementioned solution and wring it thoroughly. Then, wipe the forehead
rest and chinrest with the cloth.
Cleaning the objective lens
• To check the objective lens, set the to "ON" ( I ) and turn the
illumination lamp ON.
Darken the room, pull out the IR filter selector and set it to visible fluoro-obser-
vation.
Press the to maximize the light intensity.
Examine the objective lens diagonally from the front. The lens condition can be
seen clearly.
How to wipe the dustproof coated objective lens
The wiping method is different from the conventional coated lens.
The resistance against wiping is very low and the lens is smooth.
• Dust and dirt adhered to the surface
Blow them off using a blower.
Be careful to prevent the blower end from touching the objective lens.
• When stain is simple such as dust, tears or saliva:
Breathe toward the objective lens and wipe it with a lens cleaning paper
carefully.
If your lens cleaning paper is dirty, replace it with a clean one and repeat .
Repeat and until no stain is seen on the lens.
NOTE
To prevent the plastic parts of the instrument body from
discoloring and deterioration, do not use volatile solvents
for cleaning, including benzine, thinner, ether, gasoline,
etc.
POWER SWITCH
ILLUMINATION LEVEL SWITCH (+
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