BenQ MW855UST+ 3500-Lumen WXGA Ultra-Short Throw DLP Projector - Manual (Page 61)

Maintenance 61
Maintenance
Care of the projector
Your projector needs little maintenance. The only thing you need to do on a regular basis
is to keep the lens clean.
Never remove any parts of the projector except the lamp. Contact your dealer if other
parts need replacing.
Cleaning the Projector Mirror
Remove the dust with a "Bellows/Lens Blower" readily available from camera shops to
prevent scratching the mirror with subsequently wiped.
Cleaning the lens
Clean the lens whenever you notice dirt or dust on the surface.
• Use a canister of compressed air to remove dust.
• If there is dirt or smears, use lens-cleaning paper or moisten a soft cloth with lens
cleaner and gently wipe the lens surface.
Never use any type of abrasive pad, alkaline/acid cleaner, scouring powder, or volatile solvent,
such as alcohol, benzene, thinner or insecticide. Using such materials or maintaining prolonged
contact with rubber or vinyl materials may result in damage to the projector surface and
cabinet material.
Cleaning the projector case
Before you clean the case, turn the projector off using the proper shutdown procedure as
described in "Shutting down the projector" on page 47 and unplug the power cord.
• To remove dirt or dust, wipe the case with a soft, lint-free cloth.
• To remove stubborn dirt or stains, moisten a soft cloth with water and a neutral pH
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 follow the instructions
below:
• Make sure the temperature and humidity of the storage area are within the
recommended range for the projector. Please refer to "Specifications" on page 70 or
consult your dealer about the range.
• Retract the adjuster feet.
• Remove the battery from the remote control.
• 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 the original box or a suitable soft carry
case.