HP iPAQ h5400 Series Reference Manual page 135

5. Swipe the selected finger, as instructed.
✎
It is recommended that you gently swipe your finger downward
across the sensor. You should begin the swipe at the first joint of
your finger and continue downward with a smooth slow motion.
If you need additional assistance at any time, tap the Training
button.
6. Monitor the status to see if your fingerprint was correctly
swiped.
✎
If OK, the perimeter of the oval turns green and a message
displays indicating the quality was good. If poor quality, the
perimeter of the oval turns red and a message displays.
Reference Guide
Using the Fingerprint Reader
5–7