Optoma W311 User Manual - Page 50
Appendix
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Appendix Installing the Dust Filter (Optional accessory) Be sure to follow the steps to install the dust filter. 1. Align the filter with the side of the projector. 2. Stick the filter to the ventilation holes until it hooked.. 3. Turn on the projector, then press "Menu", go to OPTIONS > Optional Filter > Optional Filter Installed and select "Yes". 4. Clean the dust filter periodically. The dust filter should be used in dusty environments only. Filters must be cleaned/replaced periodically i.e after every 500 hrs or 3 months, or sooner depending upon the air environment. Clogged filter can restrict air flow causing the projector to heat excessively leading to pre-mature lamp and/or projector failure. 5. To remove the dust filter, take it apart from the projector. 6. Turn on the projector, then press "Menu", go to OPTIONS > Optional Filter > Optional Filter Installed and select "No" when you pull out the dust filter and would not install it again. EN-50