US Patent 7653223 Digital multifunction peripheral that has fingerprint reader capability

In a digital multifunction peripheral that has a fingerprint reader capability, a display panel displays the duration of time from when the user places his finger immovably at the fingerprint read position until a carriage of the scanner actually starts reading the fingerprint. Consequently, the user becomes careful not to move his finger during the fingerprint scan or before or after the scan starts, and a rate of erroneous reading in fingerprint reading can be lowered.