Epson 7900p - Manual (Page 103)

Maintaining the Projector 103
Cleaning the Air Filters and Vents
Clean the air filters and air vents after every 100 hours of use. If they
are not cleaned periodically, they can become clogged with dust,
preventing proper ventilation. This can cause overheating and damage
the projector.
Follow these steps:
1. Turn off the projector and unplug the power cord.
2. To clean the intake vents, Epson recommends using a small
vacuum cleaner designed for computers and other office
equipment. If you don’t have one, gently clean the vents with a
soft brush (such as an artist’s paintbrush).
3. Gently turn the projector over and remove the filters from the
side and bottom of the projector. Then use a small vacuum
cleaner or soft brush to clean the filters. Slide the filters back into
place when you’re done.