Epson 7850p - Manual (Page 171)

Maintaining the Projector 171
4. Turn the projector over and remove the air filters at the side and
bottom of the projector.
5. Insert the two new air filters. They should click into place.
6. Insert the screwdriver supplied with the spare lamp, or another
flat-tipped screwdriver, into the space beside the air vent. Gently
slide the lamp cover off.
Slide the filter up
here . . .
. . .and here
1
Insert the screwdriver here