There are many reasons to want a screenshot from Kindle Fire HD: taking screenshots for visual marketing materials on your app’s detail page, posting on your own site for promotion, marking up design changes, or simply to have a user show you an issue they’re seeing.
For developers it’s easy to get a screenshot – connect your device or emulator to the Dalvik Debug Monitor Server (DDMS) and then just click the camera icon to grab an image of whatever is on the screen. On the Kindle Fire HD, however, there’s a simpler option that doesn’t require developer tools or USB cables:
When the image you want to capture is on the screen, simply press and hold the Power and Volume Down buttons at the same time. You will hear a shutter sound and briefly see an image of the screen with a border around it. As soon as you’ve taken the image, release the two buttons and the device returns to normal.
To use the screenshots on the device you can use a file explorer app, send an e-mail and add the images from /Photos/Screenshots as attachments, or connect the Kindle Fire HD to your PC or Mac and access them from the USB mounted drive.