OKI ML 421 Impact Printer Wide Car

Mfg. Part: 62418801 | CDW Part: 442960 | UNSPSC: 43212102
$660.00SAVE $73.01
$586.99Advertised Price
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  • 9-pin impact printer
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Product Overview
Main Features
  • 9-pin impact printer
The fast, rugged dedicated forms printer designed to perform in demanding environments. Reliable, fast and easy to use
Rated at 20,000 hours MTBF

3-Year standard warranty

Print speeds up to 570 cps1

Integrated USB and IEEE Parallel connectivity standard

Optional OkiLAN® 6120i 10/100 Base-T Ethernet® internal print server

MICROLINE 420n comes with OkiLAN 6120e 10/100 Base T internal print server that offers true remote management capability

Crisp, clear printing on 6-part forms

Expandable head gap – accommodates multi-part forms and cut-sheet stock including labels and stiff index stock

128 KB receive buffer / memory

7.5 million-character ribbon life

200-million character printhead life

Small footprint – ideal for retail countertops

It's designed for commanding performance in demanding environments.
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.
Technical Specifications
Specifications are provided by the manufacturer. Refer to the manufacturer for an explanation of the print speed and other ratings.
Printer Output
Max Speed: 570 char/sec
Output Quality: Fast draft
Resolution: 12 cpi

Max Speed: 510 char/sec
Resolution: 10 cpi

Max Speed: 380 char/sec
Output Quality: Draft

Max Speed: 95 char/sec
Output Quality: Letter

Cartridge Printhead Included Qty: 1
Connectivity Technology: Wired
Interface: Parallel , USB
Interface (Computer): Parallel / USB
Language Simulation: EPSON FX , IBM ProPrinter XL24 , Okidata Microline
Max H-Document Size: 1 in
Max H-Resolution B/W: 240 dpi
Max Media Size (Standard): Roll (16 in)
Max Printing Speed: 570 char/sec
Max Sheets in Multi-Part Form: 6
Max V-Resolution B/W: 216 dpi
Media Path Type: Straight
Media Sizes: Roll (16 in)
Media Type: Cards , Continuous forms , Envelopes , Labels , Plain paper
Monthly Duty Cycle: 17000 pages
Output Type: Monochrome
Printhead Type: 9 pin
Technology: Dot-matrix
Type: Personal printer

Interface Required
Connector Type: 36 pin Centronics
Total Qty: 1
Type: Parallel

Connector Type: 4 pin USB Type B
Type: USB

System Requirements
Min Operating System: Microsoft DOS , Microsoft Windows 2000 / NT4.0 , Microsoft Windows 3.x/95/98 , Microsoft Windows NT 4.0 , Microsoft Windows XP

Bay Provided
Type: None

Consumables Included
Color: Black
Duty Cycle: 4 million characters
Included Qty: 1
Type: Ribbon

Duty Cycle: 200 million characters
Type: Printhead

Environmental Parameters
Sound Emission: 56 dBA

Brand: OKI
Compatibility: PC
Manufacturer: OKI
Model: 421
Packaged Quantity: 1
Product Line: OKI Microline

MTBF: 20,000 hour(s)

Type: None

Connectivity Technology: Wired
Type: None

Power Device
Form Factor: Integrated
Nominal Voltage: AC 120 V
Type: Power supply

Printer Media
Media Feeder Capacity: 1 roll
Media Feeder Max Format: Roll (16 in)
Media Feeder Qty: 1
Media Load Type: Manual

Type: None

Slot Provided
Free Qty: 1
Total Qty: 1

Slot Required
Type: None

Type: Drivers & Utilities

Type: None

Type: None

Dimensions & Weight
Depth: 13.6 in
Height: 6 in
Weight: 21.16 lbs
Width: 21.7 in

Installed Size: 128 KB
Max Supported Size: 128(KB)
Type: DRAM

Service & Support
Type: 3 Years Limited Warranty

Document & Media Handling
Max Media Size: Roll (16 in)
Media Size Class: Other
Media Type Class: Envelopes , Other , Plain paper

Expansion Slots
Type: Expansion slot

Office Machine
Functions: Printer
Monthly Duty Cycle (max): 17000 pages
Printing Output Type: Monochrome
Printing Technology: Dot-matrix
Type: Printer

PC Connectivity
PC Connection: Parallel , USB

Max Printing Speed B/W: 570 char/sec
Max Resolution B/W: 240 x 216 dpi

Product Reviews
Rated 4.1 out of 5 by 7reviewers.
Rated 3 out of 5 by Pretty good printers, I have had a few issues with them in the past which required getting a lot of ink everywhere. October 3, 2016
Rated 5 out of 5 by Very solid printers. I have been using them for years without hitch or issue, even with support they are good. October 3, 2016
Rated 4 out of 5 by Product meets all expectations Great Printer! We have several of these printers in our office and never had any problems. August 10, 2016
Rated 4 out of 5 by have a few of these units now and they have been very solid including printing the gummed payslips without looking stuff up October 28, 2015
Rated 4 out of 5 by I supported a few OKI printers at my last job. They produced great quality prints but maintenance on them was a pain. September 14, 2014
Rated 4 out of 5 by I am amazed at the fact that this company is still going. A number of my clients still use dot matrix printers and they are all Oki Data printers. I recently had to get a driver for one of their line and was able to rapidly go to the website and download the needed driver, which just amazed me. December 31, 2012
Rated 5 out of 5 by Oki has been a strong, reliable, if less than glamorous printer company for decades. Anyone using computers in the eight bit era is well aware of Oki. Oki has focused on being the leader in the SMB dot matrix market and their products, while niche, are top notch. August 9, 2012
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