My Wacom Bamboo fun pen is drawing while hovering over the tablet.
I've tried reinstalling it and installing the drivers on a different computer but this doesn't fix the problem.
Another questioner had the exact same problem, and the answer there involved flipping a part inside the pen.
What I found is the black rubber pad starts to bend inward in the same shape as the rounded half of the Nib bracket, by just a few thousandths of an inch. This is what is triggering the pressure sensor even without a Nib in the pen.
Flip it over so the side developing a bump is now towards the white Nib holder, with the gasket between that disk shaped thing and the rubber pad. Put it all back together, and with any luck, it'll start working like new again.
I did that and even when the pen is without the nib, the grey plastic housing, the black pad, and the small metal disk, it's still drawing while hovering over the tablet.
What more can I do to this pen to try to repair it?
With an eraser, the exact same problem occurs.