A method and apparatus for measuring the cartridge magazine insertion distance with a barcode reader

摘要

A method and apparatus for measuring the insertion distance of a data cartridge magazine in an auto-changer, using a barcode reader. A target with a known length is attached to each data cartridge magazine. The barcode reader measures the length of the target. Using the measured length and stored barcode reader system information, the auto-changer can calculate the insertion distance of the data cartridge magazine.