ZKTeco F18I User Manual page 9

2.4 inch color screen series User Manual
Fingerprint Matching
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(1) 1:N fingerprint matching
Verify the fingerprint pressed on the sensor at present with all
fingerprint data in the fingerprint reader.
Step 1: Press fingerprint properly on the sensor on initial interface.
Step 2: If device says 'Thank you", the verification is completed.
If device says " Please press again", and displayed "Verify fail" on the screen.
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