The Oki Microline 421n Dot Matrix Printer is a reliable, consistent dot matrix printer that you almost never have to worry about malfunctioning. Engineered for dedicated forms printing in the most demanding point-of-sale, automation and utility environments, ML421 series printers are right at home in applications such as retail sales counters, medical facilities, automotive rental and repair shops, airline boarding gates, financial departments and manufacturing sites. Their print speed and versatile paper handling make them ideal for the office, too. 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
Features
Print Speed: Up to 570 char/sec, max speed , Up to 510 char/sec, fast draft , Up to 380 char/sec, normal , Up to 95 char/sec, near letter
Paper Handling: Single-part, Multi-part, Continuous forms, Cut sheet, Index stock, Envelopes, Labels
RAM Installed ( Max ): 128 KB
Environments: Windows
Max Resolution ( B&W ): 240 dpi x 216 dpi
Interface: Parallel, USB, Ethernet 10/100Base-TX
Max Media Size (Custom): 16 in
Manufacturer Warranty: 3 years warranty
Options
Oki Microline 421n Dot Matrix Printer: Supplies and Accessories Options
Oki Microline 421n Dot Matrix Printer Specifications
Part # 92009704
General
Printer Type:
Workgroup printer, dot-matrix, 9 pin, monochrome
Width:
21.7 in
Depth:
13.6 in
Height:
6 in
Weight:
21.2 lbs
Enclosure Color:
Black
Printer
Print Speed:
Up to 570 char/sec, max speed, 12 cpi , Up to 510 char/sec, fast draft, 10 cpi , Up to 380 char/sec, normal, 10 cpi , Up to 95 char/sec, near letter, 10 cpi
Envelopes, labels, plain paper, continuous forms, index cards
Max Media Size (Custom):
16 in
Media Sizes:
Continuous paper 4 in, 16 in (width)
Media Thickness Range:
Up to 0.014 in
Media Weight:
45 g/m2, 90 g/m2
Media Feeder(s):
1 x manual load, 1 sheets weight: 52.6 g/m2, 90 g/m2 , 1 x manual load, 1 sheets, continuous paper 4 in, 16 in (width) weight: 45 g/m2, 90 g/m2
Max Sheets in Multi-Part Form:
6
Duty Cycle
Monthly Duty Cycle:
17000 pages
Networking
Networking:
Print server, internal
Connectivity Technology:
Wired
Data Link Protocol:
Ethernet, Fast Ethernet
Expansion / Connectivity
Expansion Slots Total (Free):
Expansion slot
Connections:
1 x parallel, IEEE 1284 (EPP/ECP), 36 pin Centronics , 1 x USB, 4 pin USB Type B , 1 x network, Ethernet 10Base-T/100Base-TX, RJ-45
Miscellaneous
Consumables Included:
1 x ribbon, up to 7.5 million characters , 1 x printhead, up to 400 million characters
MTBF:
20,000 hour(s)
Power
Power Device:
Power supply, internal
Software / System Requirements
Software Included:
Drivers & Utilities
OS Required:
Microsoft DOS, Microsoft Windows NT 4.0, Microsoft Windows 3.x/95/98, Microsoft Windows 2000 / XP
Environmental Standards
EPA Energy Star Compliant:
Yes
Manufacturer Warranty
Service & Support:
3 years warranty
Service & Support Details:
Limited warranty, parts and labor, 3 years , Limited warranty, printhead, 2 years , Technical support, phone consulting
Environmental Parameters
Min Operating Temperature:
41 °F
Max Operating Temperature:
96.8 °F
Humidity Range Operating:
20, 80%
Sound Emission (Idle):
52 dBA
Sound Emission (Operating):
56 dBA
Oki Microline 421n Dot Matrix Printer Features
It’s designed for commanding performance in demanding environments
A quantum leap forward in Impact printer performance. Print speed and versatile paper handling make it ideal for the office, too.
Performance is built in
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 without 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 superfast 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.
Oki Microline 421n Dot Matrix Printer Included Items
Okidata Microline 421n Dot Matrix Printer
Users Manual
CD ROM: Drivers and Utilities
Cable Not Included
Oki Microline 421n Dot Matrix Printer Warranty Information
Warranty Length: Manufacturer Three Year Limited Warranty
Details: Three Years covering parts and labor, Two Years covering print head. This warranty does not cover consumables.
1.800.814.5410 
858.764.8900 Mon-Fri 6AM-4PM PT
