In Eclipse, from the Window menu, select Open Perspective > Other... > DDMS.
Select the Kindle Fire tablet, and click the camera icon. (If the tablet isn't shown, from the Window menu, select Navigation > Show View Menu > Reset adb.) The Device Screen Capture window displays the current screen as shown on the tablet. If the device screen saver is on, the window shows what would be on the screen if the screen saver were not running.
Save the screen by clicking Save.
When you are finished taking screenshots, click Done.