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5. Maintenance
Clean the mirror unit
If the mirror unit gets dirty, the image will not be projected
clearly from the head display. If the image becomes unclear,
clean the mirror unit using the following procedure:
[Important]
Use cotton buds moistened with ethanol to wipe away dirt
and dust from the mirror and the lens cover.
Use ethanol for cleaning the mirror unit. Never
use organic solvents such as benzene or thinner,
alkaline detergents, or organic chemicals such
as fluorochemical solvents instead of ethanol.
Such substances could cause the mirror coating
to peel off the reflective side of the mirror, so that
the image will not be reflected normally.
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