This document provides information about MICR (Magnetic Ink Character Recognition) technology. It discusses that MICR allows machines to quickly read and process checks by recognizing a nine-digit MICR code containing information like the city code, bank code, and branch code. The MICR code is printed on checks in a special magnetic ink font, like E-13B, that can be read by MICR readers which magnetize and sense the characters as they pass over a read head. MICR provides a secure and high-speed way to process financial documents and allows characters to be reliably read even if obscured.