OKI MICROLINE 490 62418901 Leaflet

USA
2000 Bishops Gate Blvd.
Mount Laurel, NJ 08054-4620
Tel: 800.OKI.DATA (800.654.3282)
Fax: 856.222.5320

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.  

 The performance-

optimized power supply of the OKI

®

 MICROLINE

®

 

490/491 has been enlarged to easily handle 
harsh printing conditions. Its energy management 
capabilities match power expenditures to print-job 
size, maximizing the life of the 24-pin printhead 
and other components. These are just a few of the 
reasons why OKI MICROLINE Impact printers are the 
most widely used in North America.

1

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 ML490/491 from damage, even 
in the toughest working environments. 

 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 provides the edge in performance 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 high-quality, highly reliable and highly affordable 
ML490/491 Impact printers from OKI. Put them to 
work in your office or behind the counter—and watch 
them drive your productivity to new limits while they 
improve the look of your forms printing.

•

 Printhead: 24-Pin SIDM

•

Graphics Resolution: 360 (H) x 360 (V) dpi maximum

•

Feed Rate: 4.5 ips (11.4 cm/sec.)  

•

•

Print Speed and Character Matrix:  
  

Mode 

Letter Quality   Utility Hi-Speed Draft  Utility 

 

(12 cpi) 

(12 cpi) 

(10 cpi) 

(15 cpi) 

  

Speed (in cps) 

126 

380 

420 

475

•

Emulation: Epson

®

 LQ, IBM

®

 ProPrinter

®

, IBM AGM, IBM XL24

•

Interface: Standard – IEEE Parallel and USB; OkiLAN

®

  

10/100 Base-T Internal Print Server (ML490/n, ML491/n); 
Optional – RS-232C Serial and Ethernet

®

 via OkiLAN 10/100 

Base-T Internal or External Print Servers

•

Memory: 128K

•

Operating Systems: Windows

®

 Vista

®

 32/64, XP, 2000, 

98/95, 3.x and NT

®

 4.0; MS-DOS

®

•

Paper Input: Single-part, Multi-part, Continuous forms,  
Cut sheet, Index stock, Envelopes, Labels

•

Number of Copies: 5

•

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 

•

Limited Warranty: 3-Year parts and labor, 2-Year printhead 

•

MTBF: 20,000 hours (25% duty cycle/35% page density)

•

Reliability:  

    

ML420 – 20,000 pg./mo. duty cycle  

    

ML421 – 12,000 pg./mo. duty cycle

•

Printhead Life: 400 million characters

•

Ribbon Life: 4 million characters

•

Size (WxDxH):  
ML490 – 15.7" x 13.6" x 6.0" (39.8 cm x 34.5 cm x 15.2 cm); 
ML491 – 21.7" x 13.6" x 6.0" (55.1 cm x 34.5 cm x 15.2 cm)

•

Net Weight:  
ML490 – 16.4 lb. (7.43 kg);    ML491 – 21.2 lb. (9.6 kg)

•

Acoustic Noise:   56 dBA 

•

Power Requirements:  
120V Model:    120 VAC +6%, -15%;       
230V Model:    230 VAC +15%, -14%

on OKI Impact Printers and 

supplies, including OKIcare

®

 Extended Service Programs:  

1-800-OKI-DATA (800-654-3282). 

1

  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.

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.

®

®

24-Pin Impact Printers

MICROLINE 490/Parallel/120V 

62418901

MICROLINE 490/Parallel/230V 

62418902

MICROLINE 490-n/120V 

62418903

MICROLINE 491/Parallel/120V

 4

 

62419001

MICROLINE 491/Parallel/230V

 4

 

62419002

MICROLINE 491-n/120V

 4

 

62419003

Top-Mount Pull Tractor Kit with acoustic cover:
  ML490 

70030501

  ML491 

70030601

Bottom Push Tractor Kit:
  ML490 

70030701

  ML491 

70030801

Cut Sheet Feeder  

70030101

Roll Paper Stand (ML490 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

OKI ML400 Series 4-Yr. Depot 

38000801  38000811

OKI ML400 Series 5-Yr. Depot 

38000802  38000812

Upgrade to 3-Yr. Overnight Exchange  38000803  38000813
OKI ML400 Series 4-Yr. Exchange 

38000804  38000814

OKI ML400 Series 5-Yr. Exchange 

38000805  38000815