A-12
Maximus Reference Manual
MANU-MAXIMUS-02
Revision-02
Finger Placement
Appendix A: Biometrics
Finger Placement
Filling the sensor area with the fingerprint provides the best performance. Touching the sensor
with a fingertip, as if pressing a button, creates scan that lacks information-rich fingerprint
data resulting in a rejected authentication.
Placement Guides
E-Field (Bioscrypt) and Capacitive (Suprema and Cogent) sensors are equipped with a
placement guide. The placement guide is a raised area located in front of the sensor to aid in
finger positioning. Users should center the bottom of their first joint on the placement guide
before lowering their finger onto the sensor.
shows the placement guide in front of
an E-Field sensor.
Figure A-9
Placement Guide in Front of a Sensor (E-Field shown)
When the terminal displays a message such as “Place finger on reader” or “Present Finger”,
slide your finger across the placement guide without touching the sensor until the first joint is
centered on the placement guide.
Don’t slide your finger onto the finger scanner, as this can push debris onto the sensor.
Caution
For finger scans, we recommend you use an index finger, middle finger, or a ring
finger, in that order. We do not recommend using a thumb.
NOTE:
Placement Guide
