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.
Press one
of the Source buttons on the remote control to select the source
for the image you want to annotate. To use a blank screen, select
Computer2 or another unused source
Note: You cannot
use the built-in toolbar if you select the same source that is
selected for Easy Interactive Tools in the Extended
menu.
Make sure
you have calibrated the system. Try recalibrating.