Engineered for dedicated forms printing in the most demanding point-of-sale, automation and utility environments, ML420 printers are right at home in applications such as retail sales counters, medical facilities, automotive rental and repair shops, airline counters, financial departments and manufacturing sites. Their print speed and versatile paper handling make them ideal for the office, too. The ML420n sports features that give it a strong edge over their predecessors as well as the competition. 3-piece top cover provides easy access and unsurpassed break resistance. An internal cooling fan provides continuous airflow for the printhead - maximizing throughput productivity for long, unattended print jobs. Additional feed rollers provide precise forms handling and printed-character placement accuracy. The ML420n has a zero-tear feature that accurately positions continuous forms for a clean tear at the perforation, which eliminates wasted stock.