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• If you are projecting from a computer, make sure the USB cable is connected to the computer and
projector.
• Dim the room lights and turn off any fluorescent lights. Make sure the projection surface and pen
receiver are not in direct sunlight or other sources of bright lighting.
• If the pen tip is worn out or damaged, you may need to replace it.
• Make sure the pen receiver on the projector is clean and free from dust.
• Make sure there is no interference from infrared remote controls or infrared microphones.
• Make sure the USB Type-B option on the Extended menu is set to Easy Interactive Function or
USB Display/Easy Interactive Function.
• Make sure the Use Source option on the Extended menu is set to the correct source.
• Make sure you have calibrated the system. Try recalibrating.
Note: You cannot use both pens at the same time with the built-in toolbar.
Parent topic: Solving Interactive Pen Problems
Related references
Projector Setup Settings - Extended Menu
Related tasks
Using the Pens
Replacing the Pen Tips
Solutions When Manual Calibration is Difficult
If you are having trouble calibrating manually, try the following solutions:
• If the circle does not move to the next position, or it moves automatically, dim or turn off any bright
lights near the projection surface.
• Make sure the projector is not too close to the projection surface.
Parent topic: Solving Interactive Pen Problems
Solutions When the Built-In Toolbar Does Not Work
If you cannot use the pen without a computer, try the following solutions:
• Make sure the USB Type-B option on the Extended menu is set to Easy Interactive Function or
USB Display/Easy Interactive Function.
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