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Xerox DP 820 User’s Guide 27
Maintenance
Maintenance
The projector needs proper maintenance. Keep the lens clean
because dust, dirt, or spots will project on the screen and diminish
image quality.
Keep the projector housing clean to maintain its appearance.
Before cleaning the lens or housing, always turn off the power first
and unplug the power cord.
Note that only the lamp is replaceable. If any other parts need
replacing, contact your dealer or qualified service personnel.
Warning—Never open any of the covers on the projector except
the lamp cover. Dangerous electrical voltages inside the projector
can cause serious injury. Do not attempt to service the projector
yourself. Refer all servicing to qualified service personnel.
Cleaning the Lens
1. Turn off the projector and let it cool down. Make sure the lens is
also cool.
2. Wipe the lens in a circular motion with lens cleaning paper.
Do not touch the lens with your hands.
Always keep the lens cap on the lens when the projector is not
in use.
Cleaning the Projector
1. Turn off the projector and let it cool down.
2. Unplug the power cord.
3. Using a soft cloth, clean the projector’s case, and then carefully
remove any dust blocking the projector’s ventilation vents.
If dirt and stains are not easily removed, dampen the cloth with
water, or water and a neutral detergent.
4. Wipe dry with a soft, dry cloth.
Never use abrasive cleanser, detergents, or cleaning solvent
on the case or the vents. Never use benzene, thinners, or
chemical sprays.
Do not try to clean dust from the inside the projector’s case.