suprema bioentry PLUS - How to Place a Finger

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ⒸCopyright 2007 Suprema Inc.
How to place a finger
Suprema’s fingerprint products show an outstanding recognition performance regardless of the user’s fingerprint
skin condition or the way of fingerprint positioning. However, following tips are recommended to get more optimal
fingerprint recognition performance.
 Select a finger to enroll
 It is recommended to use an index finger or a middle finger.
 Thumb, ring or little finger is relatively more difficult to place in a correct position.
 How to place a finger on a sensor
 Place a finger such that it completely covers the sensor area with maximum contact.
 Place core part of a fingerprint to the center of a sensor.
 People tend to place upper part of a finger.
 The core of a fingerprint is a center where the spiral of ridges is dense.
 Usually core of fingerprint is the opposite side of the lower part of a nail.
 Place a finger such that the bottom end of a nail is located at the center of a sensor.
 If a finger is placed as in the right picture, only a small area of a finger is captured. So it is
recommended to place a finger as shown in the left picture.