How to Take Sharp Fingerprint Images
The sensor used in the fingerprint scanner creates an image based on the
way in which the sensor comes in contact with the finger. The image is
affected by the condition of the skin on the finger, and by the pressure
applied by the finger on the sensor.
At low temperatures, the finger tends to be dry, and the image comes out
very light, while at higher temperatures the finger tends to be moist, so
the image is darker. Furthermore, if the finger is dry, it may take longer
to create the fingerprint image.
If the fingerprint is too light or dark, refer to the following.
The fingerprint image is veryIs finger too dry, or is skin of
lightfinger rough or chapped?
It will require longer time toBreath on the finger to warm it
obtain the image (5 seconds orand provide moisture, then press
more)down firmly on the sensor.
The fingerprint image is darkIs there perspiration on finger, or
and smudgedis finger wet?
Wipe finger with a handkerchief
or tissue, and touch the sensor
more lightly.
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