|1.Didn’t enroll correctly.
||Refer to section 2.4.7 and enroll fingerprints again.
|2.Finger is too dry.
||Have a breath on the finger, and then press with some pressures.
|3.Have oil, smudginess and make up on the finger.
||Clean the finger.
|4.Fingerprint is not perfect, such as dry, break, molt and callus.
||Refer to section 2.4.7, changing the finger and enroll it again.
|5.Put the finger in a wrong position.
||Refer to section 2.4.7
|6.The fingerprint collected window is dirty.
||Clean the glass surface of the collected window.
|7.The affection of the finger skin’s change
||Refer to section 2.4.7 and enroll it again.
|8.The collected window with the direct sunshine and strong light.
||Put the machine at the place where avoiding the direct sunshine and the strong light.
|9.Press with un-enrolled finger.
||Press with enrolled finger