Epson 5350 EN - Manual (Page 67)

Turning the Equipment On and Off 59
Warning: Never look into the lens when the lamp is on. This can damage
your eyes. It is especially important that children not look into the lens.
When you want to stop projecting images, press the Power button
again. The fan remains on and the projection lamp light flashes orange
for about 60 seconds as the projector cools down.When the projector
has cooled down, flashing stops. The power light remains orange.
Note: If you press the Power button to turn the projector back on while
the power light is orange, there may be a delay before a projected image
appears.
When you are done using the projector, unplug the power cord.
Never unplug the power cord when the power light is green; this may
damage the lamp.