Epson PowerLite 7550C User Manual page 74

Button Function
3 Line
4 Marker
5 Clear
Description
Draws a straight line on the screen:
Press the Effects button, then press the bottom
multi-purpose button once to define the line position.
To draw another line, move the pointer away from the
line you just created and press the bottom
multi-purpose button again to define the new line
position.
Lets you highlight an area of the screen with a colored
bar:
Press the Effects button, then press the bottom
multi-purpose button once to define the start position
for the bar. Use the pointer button to select the end
point of the bar. To draw another bar, move the
pointer to the area you want to highlight and repeat
the process. (This function can create horizontal and
vertical bars only; it cannot draw diagonal lines.)
Clears the screen of all special effects.
Controlling the Projector
63