Epson PowerLite 1705c Benutzerhandbuch

Clean the lens whenever you notice dirt or dust on the surface.

Use a canister of compressed air to remove dust.

To remove dirt or smears on the lens, use lens-cleaning tissue. If 
necessary, moisten a soft cloth with lens cleaner and gently wipe the 
lens.

Before you clean the case, turn off the projector and unplug the power 
cord.

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To remove dirt or dust, wipe the case with a soft, dry, lint-free 
cloth.

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To remove stubborn dirt or stains, moisten a soft cloth with water 
and a neutral detergent. Then wipe the case.