OKI MICROLINE 421N 92009704 Leaflet

Product codes
92009704
Page of 2
Oki Data Americas, Inc.
USA
2000 Bishops Gate Blvd.
Mount Laurel, NJ 08054-4620
Tel: 800.OKI.DATA (800.654.3282)
Fax: 856.222.5320
www.okiprintingsolutions.com
Canada
2735 Matheson Blvd. East
Mississauga, Ontario L4W 4M8
Tel: 905.238.4250
Fax: 905.238.4421
Latin America 
2000 Bishops Gate Blvd.
Mount Laurel, NJ 08054-4620
Tel: 856.231.0002
Fax: 856.222.5071
Oki Data de México, S.A. de C.V. 
Mariano Escobedo, 748 8º Piso 
Col. Nueva Anzures C.P. 11590 
México, D.F.
Tel: 55.5263.8780
Fax: 55.5250.3501
Oki Data do Brasil Informática Ltda. 
Av. Alfredo Egídio de Souza Aranha, 100 
Bloco C – 4º andar 
04726-170 – São Paulo – SP – Brasil
Tel: 11.3444.3500  
Fax: 11.3444.3502
Printed in the USA.  
MS11326/0609
Wide-carriage MICROLINE 421
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.
Specifications
Technology, Speed and Print Characteristics
 Printhead: 9-Pin SIDM
Graphics Resolution: 240 (H) x 216 (V) dpi maximum
Feed Rate: 4.5 ips (11.4 cm/sec.) 
Print Speed and Character Matrix:  
    
Mode 
NLQ 
Utility 
HSD 
SSD 
   
(10 cpi) 
(10 cpi) 
(10 cpi) 
(12 cpi) 
    
Speed (in cps) 
95 
380 
510 
570
Emulation, Interface and Memory 
Emulation: Epson
®
 FX, IBM
®
 ProPrinter
®
, OKI MICROLINE
Interface: Standard – IEEE Parallel and USB; OkiLAN
®
 
10/100 Base-T Internal Print Server (ML420/n, ML421/n);  
Optional – RS-232C Serial and Ethernet
®
 via OkiLAN 10/100 
Base-T Internal or External Print Servers
Memory: 128K
Compatibility
Operating Systems: Windows
®
 Vista
®
 32/64, XP, 2000, 
98/95, 3.x and NT
®
 4.0; MS-DOS
®
Paper Handling
Paper Input: Single-part, Multi-part, Continuous forms,  
Cut sheet, Index stock, Envelopes, Labels
Number of Copies: 6
Thickness: 0.017" (0.43 mm) maximum
Paper Feeding: Rear Push and Friction Feed 
Options: Bottom Push Tractor, Top Pull Tractor,  
Cut Sheet Feeder, Roll Paper Stand 
Warranty and Reliability
Limited Warranty: 3-Year parts and labor, 2-Year printhead 
MTBF: 20,000 hours (25% duty cycle/35% page density)
Reliability:  
ML420 – 24,000 pg./mo. duty cycle  
ML421 – 17,000 pg./mo. duty cycle
 Printhead Life: 400 million characters
Ribbon Life: 4 million characters
Environmental
Size (WxDxH):  
ML420 – 15.7" x 13.6" x 6.0" (39.8 cm x 34.5 cm x 15.2 cm);  
ML421 – 21.7" x 13.6" x 6.0" (55.1 cm x 34.5 cm x 15.2 cm)
Net Weight:  
ML420 – 16.4 lb. (7.43 kg);   ML421 – 21.2 lb. (9.6 kg)
Acoustic Noise: 56 dBA 
Power Requirements: 120V Model:  120 VAC +6%, -15%;   
230V Model:  230 VAC +15%, -14%
For more information
 
on OKI Impact Printers and 
supplies, including OKIcare
®
 Extended Service Programs:  
1-800-OKI-DATA (800-654-3282). 
Q4 2003 IDC Quarterly Tracker and Evans Research.
2
  3-year standard warranty parts and labor/2-year printhead. 
3
  Available in the U.S. and Canada only.
4
 Has earned the ENERGY STAR.
OKI
®
 MICROLINE
®
 420/421
9-Pin Impact Printers
Ordering Information (Part Number)
Description 
Part Numbers
MICROLINE 420/Parallel/120V 
62418701
MICROLINE 420/Parallel/120V/Black 
91909701
MICROLINE 420/Parallel/230V 
62418702
MICROLINE 420-n/120V 
62418703
MICROLINE 420-n/120V/Black 
91909704
MICROLINE 421/Parallel/120V
 4
 
62418801
MICROLINE 421/Parallel/230V
 4
 
62418802
MICROLINE 421/Parallel/120V/Black
 4
 
92009701
MICROLINE 421-n/120V
 4
 
62418803
MICROLINE 421-n/120V/Black
 4
 
92009704
Accessories
Top-Mount Pull Tractor Kit with acoustic cover: 
  ML420 
70030501 
  ML421 
70030601
Bottom Push Tractor Kit: 
  ML420 
70030701 
  ML420 – Black  
40804502  
  ML421 
70030801 
  ML421 – Black  
40804602
Cut Sheet Feeder   
70030101
Roll Paper Stand (ML420 only) 
70023301
RS-232C Serial Interface (19.2K baud max.) 
70012801
OkiLAN
®
 6120i 10/100 Base-T Ethernet  
  Internal Print Server 
70046502
OkiLAN 6020e+ 10/100 Base-T Ethernet  
  External Print Server 
70036002
Self-inking Ribbon Cartridge 
42377801
OKIcare
®
 Depot Warranty Extensions
 3
 
U.S. 
Canada
OKI ML400 Series 4-Yr. Depot 
38000801  38000811
OKI ML400 Series 5-Yr. Depot 
38000802  38000812
OKIcare
®
 Overnight Exchange Warranty Extensions
 3
 
U.S. 
Canada
Upgrade to 3-Yr. Overnight Exchange  38000803  38000813
OKI ML400 Series 4-Yr. Exchange 
38000804  38000814
OKI ML400 Series 5-Yr. Exchange 
38000805  38000815
All specifications subject to change without notice.
© 2009 Oki Data Americas, Inc. OKI Reg. T.M., M.D., M.R., MICROLINE, OkiLAN, OKIcare Reg. T.M., Oki Electric Industry Co., Ltd. 7-Day/24-Hour logo T.M., Oki Data 
Americas, Inc. Epson Reg. T.M., Seiko Epson Corp. IBM, ProPrinter Reg. T.M., International Business Machines, Inc. Vista, Windows, Windows NT, MS-DOS Reg. T.M., 
Microsoft Corp. Ethernet Reg. T.M., SCO. ENERGY STAR Reg.T.M., U.S. EPA. USB-Logo T.M. Universal Serial Bus Implementers Forum, Inc.