Optoma ZW300UST ZW300UST_ZW300USTi_UM_EN - Page 62
Appendices
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Appendices Installing and Cleaning the Optional Dust Filter We recommend you clean the dust filter every 500 hours of operation, or more often if you are using the projector in a dusty environment. When the warning message appears on the screen, do the following to clean the air filter: The optional dust filter should be 2 used in dusty environments. 1 If the dust filter is installed, a proper maintenance will prevent overheat- ing and projector malfunction. The dust filter is 1 optional. The specific inter- faces are selected in terms of the 2 specifications of types. Air Filter Cleaning Procedure: 1. Switch off the power to the projector by pressing the " " button. 2. Disconnect the power cord. 3. Pull out the dust filter, as shown in the illustration. 1 4. Carefully remove the dust filter. Then clean or change the filter. 2 To install the filter, reverse the previous steps. 5. Turn on the projector and reset the filter usage counter after the dust filter is replaced. English 62