User's Manual

A -Optimizing Fingerprint Images  62
Proprietary
Figure A-2 Proper Finger Placement
A.2 Capturing High-Quality Fingerprints
The condition of the finger itself may affect the image quality of the fingerprint. The following
table provides descriptions of typical finger conditions and Cogent’s recommended solutions
for ensuring the capture of the highest quality fingerprints.
Image Condition Solution
Dry Finger
The finger is very dry and
difficult to capture.
Perform one of the following actions:
• Apply moisture to the finger using
oil from your forehead.
• Breathe on the finger.
• Use a moisturizer that does not
contain alcohol.
As a last resort, enroll a different finger.
Wet Finger
Remove excessive moisture from
either the finger or the
fingerprint sensor.
Perform one of the following actions:
• To remove the excessive moisture
from your fin
g
er, wipe your fin
g
er on
a cloth or dry tissue to absorb the
moisture.
• To remove excessive moisture from
the fingerprint sensor, please refer
to Cleaning the Fingerprint Sensor.
Damage to Finger
The fingerprint may have future
issues with identification due to
the damaged area of the finger.
Enroll a different finger.