Doing the job day after day. The OKI MICROLINE 420 9-pin printer is a quantum leap forward in Impact printer performance. Engineered for dedicated forms printing in the most demanding point-of-sale, automation and utility environments, ML420 printer is right at home in applications such as retail sales counters, medical facilities, automotive rental and repair shops, airline counters, financial departments and manufacturing sites. The ML420 has a zero-tear feature that accurately positions continuous forms for a clean tear at the perforation, which eliminates wasted stock. You also get perfect results with single sheets, index stock, labels and envelopes, too. All without jams or smears. The OKI ML420 delivers the kind of productivity usually reserved for printers many times the price - starting with a super-fast print speed of 570 characters-per-second (in SuperSpeed Draft mode). Then there's the rugged print head - with its 200-million character life, powerful samarium cobalt magnets and stored-energy pins - delivering precise, sharp characters all the way through to the last page of a 6-part form. And the patented OKI closed-loop feedback system that assures character placement accuracy.