User Manual
10
2.7. Illustration for pressing fingerprint
Correct method:
Wrong method:
Valid Left Right Defluxion Down
1. Please register the thumb or index finger if possible.
2. Place the center of the finger flat on the center of the scanner window and
press a little hard on scanner so it can scan as large finger area as possible
to extract enough minutia.
3. Keep the angle and direction of finger the same each time placing on
scanner.
4. Touch the forehead to increase oily level of the finger, if the fingerprint is
too dry.
2.8. Usage Notice
1. Don’t scratch the surface of the optical fingerprint sensor with the
keen-edged things such as small knife or pen.
2. Humidity, dust, and direct light can affect the terminal’s performance.
3. Please don’t clean the surface of the optical fingerprint sensor with an
organic impregnate such as alcohol or gasoline.
4. Recommended solution: Use one-sided adhesive tape to paste on the
sensor and then remove the tape.
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