A warning message like the one pictured to the right will be displayed for 10 seconds every 500 hours to remind you to clean the filter. To leave the message, press the Exit button on the projector or remote control.

Please check if the filter is clean

Clean the filter or replace with a new one

Press “Exit” to leave

To clean the filter:

1.Turn the projector off and wait until the fans stop running.

2.Disconnect the projector from any cables.

3.Locate the filter case on the back of the projector.

filter case

4.Release the filter case from the projector by

pressing the filter case into the slot slightly. The filter case

springs out of the slot.

5.Pull out the filter case.

6.Use a small vacuum cleaner designed for

computers and other office equipment to clean the filter sponge. Or use a soft brush (such as a clean artist’s paintbrush) to gently sweep the dust on the filter away.

If the dirt is difficult to remove or the filter is broken, replace it with the supplied spare filter sponge. See "How to replace the filter sponge:" below.

Maintenance 41

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Image 47
BenQ MP720 user manual To clean the filter