User's Manual

- 22 -
This function will be supported only when you use NAC-3000M LFD
terminal and LFD firmware at the same time.
The LFD is the function to detect fake FP (or replica). You can
change the LFD level. The higher the level is, the more difficult
to fake.
The LFD uses 3 images to detect fake FP. (diffusion type/
absorption type/ external light) If the fake is detected, the
terminal shows “presume fake” message.
It is strongly recommended that the user place his FP on the top
of the prism and remain still until the capture finishes.
This is to get the best image for LFD function.
You can choose LFD function in the menu like below.
Capture mode
Normal / Latent
/ Intelli / LFD
You can choose LFD level.
LFD Level
Low / Middle
/ High