A fingerprint scanner needs to get an image of your finger to compare it with the others on record.

Like optical scanners, capacitive fingerprint scanners generate an image of the ridges and valleys that make up a fingerprint.

What does a fingerprint scanner do?

What happens when you place your finger on a glass plate of an optical scanner?

A personal USB fingerprint scanner costs more than $1000.

What are the most common methods to get an image of somebody's finger?

What is in the heart of an optical scanner?

What is a fingerprint?

Укажите правильный перевод scanner:

The heart of an optical scanner is a light sensor.

Capacitive scanners can sometimes be fooled by a mold of a person's finger.