Some classrooms are equipped with ELMO cameras so you can project paper documents and other flat copy through the room's projector. Here is the procedure for projecting copy.
On the KVM panel in the desk pedestal, select source #3. This connects the ELMO camera to the projector. See Section 4, “Keyboard-video-mouse switch (KVM) control panels”.
To open the unit, move the latch to the left (as it is oriented in the photo).

To turn the unit on, slide the power switch up and set the PC/Camera switch to .

Place your copy on the base and turn on the lamp switch. Your document will appear on the projection screen.
To show more of your document, move the lamp head up (away from the base). To show a smaller part of the document, move the lamp head down (toward the base).
You can also zoom the image digitally using these buttons located on the side of the lamp head:

If the image appears too white (colors are washed out), press the button a few times or hold it down. If the image is too dark, press the button a few times, or hold it down.