User Manual

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2.2 Fingerprint Option
Use this menu to set the operation environment of the fingerprint
input sensor. It has the following 5 submenus. Move to the
submenu you want to choose with the direction keys and press the
Enter key.
ＦＰ Ｏｐｔｉｏｎ
１．Ｓｅｎｓｏｒ Ｏｐｔｉｏｎ
２．Ｓｅｃｕ． Ｌｅｖｅｌ
３．Ｌａｔｅｎｔ Ｃｈｅｃｋ
４．Ｓｅｎｓｏｒ Ｔｉｍｅｏｕｔ
５．Ａｕｔｏ－Ｏｎ Ｃｈｅｃｋ
 Sensor Option
Set the sensor options to get a clear fingerprint image. The sensor
option values are the internal settings of the CMOS image sensor.
You can set gain, brightness and contrast. The defaults of Gain,
Brightness and Contrast are 2, 40 and 20 respectively.
• Gain (1 / 2 / 4 / 8)
Ｓｅｎｓｏｒ Ｏｐｔｉｏｎ
１．Ｇａｉｎ
（１／２／４／８）：２
Enter a gain value and press the Enter key. Then the brightness
setup screen will appear.
These values can largely affect the fingerprint recognition
performance because they are very sensitive. So it is highl
y
recommended that default values be used without an
y
modification if possible.