BenQ W20000 - Manual (Page 41)

41 Additional information
Eng
lish Additional information
Care of the projector
Your projector needs little maintenance. The only thing you have to do on a regular basis is keep the lens clean
and clean or replace the air filter. Never remove any parts of the projector except the lamp or the air filter.
Contact your dealer or local BenQ Customer Service Centre if the projector fails to operate as expected.
Cleaning the lens
Clean the lens whenever you notice dirt or dust on the surface. Before you attempt to clean the lens, turn the
projector off, unplug the power cable, and leave it several minutes to cool completely.
1.
Use a canister of compressed air to remove dust. (Available from building hardware or photographic
suppliers.)
2. If there is stubborn dirt or smudge marks, use a proper photographic lens brush or moisten a clean soft lens
cloth with lens cleaner to gently wipe the lens surface.
Never touch the lens with your finger or rub the lens with abrasive materials. Even paper towels can
damage the lens coating. Only ever use a proper photographic lens brush, cloth, and cleaning solution. Do
not attempt to clean the lens while the projector is switched on or is still hot from previous use.
Cleaning the projector case
Before you attempt to clean the case, turn the projector off, unplug the power cable, and leave it several minutes
to cool completely.
1.
To remove dirt or dust, wipe the case with a soft, dry, lint-free cloth.
2. To remove stubborn dirt or stains, moisten a soft cloth with water and a neutral detergent. Then wipe the
case.
Never use wax, alcohol, benzene, thinner or other chemical detergents. These can damage the case.
Storing the projector
If you need to store the projector for an extended time, please:
1.
Make sure the temperature and humidity of the storage area are within the recommended range for the
projector. Please refer to the Spec. page in this manual or consult your dealer about the range.
2. Retract the adjuster feet.
3. Remove the batteries from the remote control.
4. Pack the projector in its original packing or equivalent.
Transporting the projector
It is recommended that you ship the projector with its original packing or equivalent. When you carry the
projector yourself, please use a soft carry case.
Cleaning and replacing the dust filter
The message to the right displays periodically every 500 hours
use. You can also use the Advanced Setup > Dust Filter > Dust
Filter Hours menu or the Information > Dust Filter Hours
menu to check how long the filter has been used. If the filter is
not cleaned, it can become clogged with dust and prevent proper
ventilation. This can cause overheating and a malfunction of the
projector. Should the projector filter become seriously clogged
with dust, it can cause over-heating inside of the projector.
WARNING
Please check if the filter is clean.
Clean the filter or replace
with a new one.
OK
FILTER CLEAN REMIND NOTICE
W20000-en.book Page 41 Monday, October 22, 2007 3:35 PM