1. The MICR (magnetic ink character reader/recognition)
2. First you put the check in the device
3. The read-head - The part of several electronic devices that converts digital or analog information - is a device built into the scanner designed to read the magnetic signal emitted by the MICR ink characters on the check.
3. Each character produces a unique form which is read and translated by the MICR read-head to the computer.
MICR
1. MICR stands for Magnetic Ink Character Reader/Recognition. The Magnetic Ink Character Reader allows computers to read the characters on a check even if they have been covered with signatures, stamps, or marks. This is an extremely useful type of ink that makes processing personal checks fast, secure and accurate.