Introduction To Fingerprint Recognition Technology - ZKTeco F18I User Manual

1.2 Introduction to Fingerprint Recognition technology

Enroll fingerprint by pressing index finger, middle finger or ring finger .
Proper press:
Improper press:
Upright
Slant
Please adopt the correct way to place the finger to avoid improper
operation led to the identification performance degradation.
2.4 inch color screen series User Manual
- 2 -
Make finger center pressed
on the sensor window
Too lean
Too downward