Optoma X307USTi - Manual (Page 50)

50
English
Appendices
Replacing and cleaning the optional
dust filter
We recommend cleaning the dust filter after every 500 hours of use,
clean it more often if the projector is used in a dusty environment.
The usage time of the dust filter is reached.
Please clean the dust filters for better performance.
Warning! Dust Filters
When you see this message, please find following steps for cleaning
procedure:
Lamp Replacement Procedure:
1. Switch off the projector power by pressing the “ ” button.
2. Disconnect the power cord.
3. Pull the latch by the arrow direction. 1
4. Remove the dust filter slowly and carefully.
5. Clean or replace the dust filter. 2
To install the dust filter, reverse the previous steps.
6. Turn on the projector and use “Reset Dust Filter” after the dust filter is re-
placed.
The optional dust 
filter should be
used in dusty
environments.
If the dust filter is

installed, proper
maintenance will
prevent overheat-
ing and related
damage to the
projector.
1
2