How to Make a Screen Capture on a NOOK Tablet
You won’t find it in the official NOOK Tablet user guide, but here’s how to grab a screen capture (also called a screenshot): Press the ∩ button and the - volume button (on the right side of the device) at the same time.
It may take a few tries to get the hang of it; if you’ve done it correctly, you’ll hear a tone and see a tiny icon of a camera appear in the lower-left corner status bar.
Tapping that camera icon opens a notifications bar, where you can see confirmation that you captured a screenshot. If you tap that notification, your NOOK Tablet will go to My Media and launch the image. And the image itself has been saved in the Screenshots folder, which you can get to from My Files.
If you connect your tablet to a desktop or laptop computer using the USB cable, you can copy the files to your PC.
Screenshots are saved as png files, which are lossless compressed files at the full screen resolution of 600 x 1024 pixels. In other words, the quality is quite good and the size is quite reasonable.
You can capture most screens. Some applications, including videos, may not let you. There is one other little gotcha you may need to keep in mind: When you make a screen capture, it’s numbered this way: 11-11-22-1.png, meaning 2011, November 22 #1, and so on.
If you copy those screen captures to your PC and clear the tablet, future screenshots will renumber back to 1, so at least on a single day you could end up with multiple files with the same name. Fix this problem by changing the filenames on your desktop or laptop computer.