Ask Proxima Impression A4 User Manual page 37

USER GUIDE
To change lamp, unscrew the lamp lid. A safety switch will cut off the power
supply to the lamp completely. Unscrew the lamp holder, fold out the handle
and pull out the old lamp holder. Insert a new lamp.
Push the lamp holder all the way until it positively stops and mount the
screw. Fold the handle and remount the lamp lid. Mount all screws well.
Use only original lamp and holder as specified. The lamp is
individually adjusted with the holder to maintain optimum
illumination. Replacement using a different lamp may result
in poor illumination, malfunction (potentially explosion) and
will void any warranties.
To reset the lamp timer, invoke the menu system under OPTIONS,
SERVICE, LAMP TIMER RESET. You need to confirm that you actually
intend to reset the lamp timer, or cancel if you accidentally invoked the
function.
Projector seen from below
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SVGA LCD PROJECTOR