Many College of Engineering classrooms contain document cameras, designed to show documents, transparencies, or physical objects to an audience via a display in the room. Models may vary in resolution displayed depending on the size and needs of the room, and can capture images at up to 30 frames per second. The controls also vary by model, but all document cameras allow the operator to adjust the images displayed, including zoom, focus, contrast, and white balance.
No image on display
First verify that the document camera has power and is turned on. If you see a blue screen and/or “No Signal” message, verify that the proper input source is selected on the touchscreen or button panel. Touch the button for the Doc Cam source. If the Doc Cam source is already selected, select a different source and then select the Doc Cam source again.
Image not positioned correctly
Zoom in and out on the image using the “Wide” and “Tele” buttons under the Zoom section of the control panel. Then position your document.
Image is out of focus
After zooming or repositioning the camera, it may be necessary to have the unit perform an auto-focus operation. Press the “focus” or “auto” button on the document camera, depending on the model, to adjust the focus.