From the Manufacturer|Powered by Is the information in this section helpful? Yes / No Introduction OKI MICROLINE 421 Serial Impact Dot Matrix Printer See More: Product Brochure Product Details The fast, rugged dedicated forms printer designed to perform in demanding environments. Doing the job day after day. The OKI® MICROLINE® 420 9-pin printer and its wide-carriage counterpart ML421 are a quantum leap forward in Impact printer performance. Engineered for dedicated forms printing in the most demanding point-of-sale, automa-tion and utility environments, ML420/421 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. Performance is built in. The ML420/421 sport features that give them 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 Exceptional paper-handling versatility. The ML420/421 have 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 with-out jams or smears. Value that goes the distance. The OKI ML420/421 deliver 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 printhead—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… The OKI ML420/421: Just turn ‘em on and turn ‘em loose Built to last, inside and out. Field-proven reliability is just one reason OKI® MICROLINE® impact printers are the most widely-used in North America.1 The performance-optimized power supply of the ML420/421 has been enlarged to easily handle harsh printing conditions— and its energy management capabilities match power expenditures to print-job size, maximizing the life of the 9-pin printhead and other components. A long-lasting rack-and-pinion drive system ensures print quality longer than belt or cable systems. And the ergonomically-designed, impact-resistant chassis protects the ML420/421 from damage, even in the toughest working environments. Performance that’s user-friendly. Controls are conveniently placed on the front panel for fast access. The automatic loading of continuous and cut stock makes every print job easier, and the design of the internal sheet separator enables easy loading of tractor-fed paper into the rear push tractor. OKI has a reputation for quality and reliability no competing printer can claim—and backs it with 3 years of warranty coverage 2 and a network of authorized OKI Dealer Service Centers and Service Depots. The reliable, affordable ML420/421 can work wonders in virtually any forms-handling application. 1 2002 NPD Intellect and Evans Research Market Share Data. 2 3-year standard warranty parts and labor/2-year printhead. Specifications Print Speed And Quality Super Speed Draft (cps) 570 High Speed Draft (cps) 510 Utility Speed (cps) 380 Near Letter Quality Speed (cps) 95 Letter Quality Speed (cps) N/A Number Of Colors 1 Maximum Graphics Resolution (dpi) 240 x 216 Fonts and Bar Codes Resident Scalable Fonts Yes Resident Bar Code Fonts Yes (8 types) Paper Handling No. Of Copies 6 Automatic Paper Forms Loading Yes Short Tear Off Yes Zero Tear Off Yes Rear Feed Yes Bottom Feed Optional Pin Feed Platen N/A Top Pull Tractors Optional Push Tractors Optional Paper Feed Rate (inch per second) 4.5 Cut Sheet Feeder Option Optional Roll Paper Stand Option Optional Connectivity Parallel Interface Standard Serial Interface Optional Network-Ready Optional USB Standard Printhead Number of Pins 9 Autogapping Printhead No Expanded Head Gap Yes Printhead Life (characters) 400 million Performance Memory Buffer Size 128K Reliability/MTBF (hours) 20,000 Monthly Workload (pages) 17,000 Operating / Physical Specifications Noise Level In Operating Mode (dBA) 56 Noise Level In Quiet Mode (dBA) 52 Ribbon Life (characters) 7.5 million Power Voltage 120v or 220v EPA Energy Star Compliance Yes Dimensions Of Narrow Carriage w/out Box (W x D x H) (inches) N/A Dimensions Of Wide Carriage w/out Box (W x D x H) (inches) 21.7 x 13.6 x 6.0 Weight Of Narrow Carriage w/out Box (lb.) N/A Weight Of Wide Carriage w/out Box (lb.) 21.2 Additional Features Front Panel Direct Access Controls Yes Front Panel Limited Function Mode Yes Warranty Warranty 3-year standard warranty parts and labor; 2-year printhead Toll Free Telephone Support (hours/days) 24 / 7 Emulations Emulations Epson® FX, IBM® ProPrinter®, OKI MICROLINE Compatibility OS Compatibility Windows® XP, 2000, 98/95, 3.x and NT® 4.0; MS-DOS® Images General Information The OKI wide-carriage counterpart ML421 is a quantum leap forward in Impact printer performance. Engineered for dedicated forms printing in the most demanding point-of-sale, automa-tion and utility environments, ML421 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. Its print speed and versatile paper handling make it ideal for the office, too. Technical Information Print Color Capability: Monochrome Maximum Mono Print Speed (cps): 570 Maximum Print Resolution: 240 x 216 dpi Number of Pins: 9-pin Number of Columns: 136 Memory Standard Memory: 128 KB Interfaces/Ports Parallel Port: Yes USB: Yes Media Types & Handling Media Type: Label Media Type: Envelope Media Type: Index Stock Media Type: Continuous Form Media Type: Multiple Part Form Media Type: Single Sheet Media Type: Cut Sheet Media Size: Custom Size Media Size: Letter – 8.50″ x 11″ Media Handlin Push Tractor Rear Media Handlin Friction Feed Maximum Print Size: Letter – 8.50″ x 11″ Fonts & Emulation Language Emulation: Oki Microline Language Emulation: IBM ProPrinter Language Emulation: Epson FX Reliability MTBF: 20000 Hour Duty Cycle: 20000 Power Description Power Source: AC Supply Input Voltage: 120 V AC Operating Power Consumption: 58 W Physical Characteristics Form Factor: Desktop Color: White Height: 6″ Width: 21.7″ Depth: 13.6″ Weight (Approximate): 21.20 lb Miscellaneous Additional Information: Number Of Copies: 6 Front Panel Limited Function Mode Front Panel Direct Access Controls Certifications & Standards: Energy Star Platform Supported: PC Energy Star: Yes Environmentally Friendly: Yes Environmental Certification: ENERGY STAR Warranty Limited Warranty: 3 Year Product images may differ from actual product appearance.
Oki MICROLINE 421 Dot Matrix Printer 62418801