Is it common for biometric scanners NOT to recognize a finger print?

Question

Is it common for biometric scanners NOT to recognize a finger print?

Answer 1

not really.  maybe you need to clean the glass, or go and get your fingers rescanned.  

Answer 2

yes...

the finger print might not be in the data base...

something is wrong with the finger print or...

the finger print reader is broken...

if it is for your computer, try scanning your finger print again...

it might help

Answer 3

1. Fingerprint data not exist

2. Bad surface or oily/dry finger

3. Too skewed when sweeping finger

4. Damage memory at fingerprint reader

Answer 4

The range of false positives (accepting an invalid fingerprint) is .0001 to 0.1 percent.

The range of false negatives (rejecting valid fingerprints) is from .00066 to 1.0 percent.