ASKProxima c440 User Manual

: When you are performing maintenance activities on your projector, 

keep in mind that you should only remove screws that are single-slot, or 
flathead, screws. Any other type of screw, such as a phillips or star should 
not be removed. These types of screws should only be removed by technical 
support experts.

Apply a non-abrasive camera lens cleaner to a soft, dry cloth.

Avoid using an excessive amount of cleaner, and don’t apply the 
cleaner directly to the lens. Abrasive cleaners, solvents or other harsh 
chemicals might scratch the lens.

Lightly wipe the cleaning cloth over the lens in a circular motion. If you 
don’t intend to use the projector immediately, replace the lens cap.

Long throw and short throw lenses are available with your projector.

Turn off the projector and unplug the power cable.

Turn the projector upright with the lens facing upward and use a screw-
driver to remove the two screws from the front bezel release holes on the 
bottom of the projector.

Lift off the front bezel.

Gently place a flathead screwdriver into the slot on the top of the projec-
tor (it is by the right speaker) and slide the small lever toward the right 
speaker. The cover that protects the lens and the lamp housing pops up. 

Loosen the captive screw to the door that covers the lens housing.

clean the lens 
with a soft dry cloth
and non-abrasive
cleaner

turn off and unplug
the projector

lens release holes

front
bezel

slide lever in slot to 
pop open cover

cover