Oki Microline 491 User Manual

High-volume versatility in forms and correspondence.

Whether you need regular output of continuous multi-part forms, fine business correspondence— or combinations of both—24-pin OKI

ML490/491

printers are the commanding solution. They handle the printing needs of the most demanding

environments—including point-of-sale, automation and utility applications such as wholesale or retail sales counters, financial departments, and manufacturing or warehouse sites. Yet they also produce letter-quality type and high-resolution graphics for the office and executive suite.

Unequaled performance technology. The

ML490/491 sport features that give them a strong edge over their predecessors as well as the competition:

• 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

• 3-piece top cover provides easy access and

unsurpassed break resistance

Highlights:

Rated at 20,000 hours MTBF 3-year standard warranty Print speeds up to 475 cps

Integrated USB and IEEE Parallel connectivity standard

Optional OkiLAN

6120i 10/100 Base-T Ethernet

internal print server Crisp, clear printing – on letterhead or

5-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 Uses the same accessories as

ML390/391 Turbo Series

Utility/Draft Mode.

Q4 2003 IDC Quarterly Tracker and Evans Research.

Reliable

and fast

with

letter-quality output.

Fast, with finesse. ML490/491 printers run the

gamut of paper types and envelopes at lightning speed—reaching 475 cps in Utility/Draft mode and 105 cps in Letter-quality. Their rugged printhead (200 million-character average life expectancy) is made up of powerful samarium magnets and stored-energy pins that deliver precise, sharp characters all the way through to the last page of a 5-part form.

The patented OKI closed-loop feedback system assures character placement accuracy.And a zerotear feature accurately positions continuous forms for a clean tear at the perforation to eliminate wasted stock.

Sturdy and sophisticated. Field-proven reliability is

just one reason OKI MICROLINE printers are the most widely-used impact printers in North America

The rugged, reliable OKI ML490/491 printers are sure to win you over, too!

Exceptional forms-printing performance, backed by a 3-Year standard warranty

Narrow Carriage MICROLINE 490

OKI®MICROLINE®490/491

24-Pin Impact Printers

To contact Oki Data Americas, Inc. In USA: 2000 Bishops Gate Blvd.

Mount Laurel, NJ 08054-4620 Tel: 800.OKI.DATA (800.654.3282) Fax: 856.222.5320

In Canada: 2735 Matheson Blvd. East Mississauga, Ontario L4W 4M8 Tel: 905.238.4250 Fax: 905.238.4421

In Latin America and Mexico:

2000 Bishops Gate Blvd. Mount Laurel, NJ 08054-4620 Tel: 856.231.0002 Fax: 856.222.5071

www.okidata.com 800.OKI.DATA

Wide-carriage MICROLINE 491

Printed in the USA. MS11327/0404pdf

Built to last, inside and out. 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.

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.

All this performance is 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 provides the edge in performance no competing printer can claim—and backs it with 3 years of warranty coverage

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.

Specifications

Technology, Speed and Print Characteristics

• 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) 126 315 420 475

Emulation, Interface and Memory

• Emulation: Epson®LQ, IBM®ProPrinter®, IBM AGM, IBM XL24

• Interface: Standard – IEEE Parallel and USB;

Optional – RS-232C Serial and Ethernet

via OkiLAN®6120 i 10/100 Base-T Internal Print Server (no AC power adapter required); Twin-ax/Co-ax through 3rd Party

• Memory: 128K

Compatibility

• Operating Systems: Windows®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: 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

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 – 20,000 pg./mo. duty cycle ML421 – 12,000 pg./mo. duty cycle

• Printhead Life: 200 million characters

•Ribbon Life: 7.5 million characters

Environmental

• 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%

For more information on OKI Impact Printers and sup-

plies, including OKIcare®Extended Service Programs: 1-800-OKI-DATA (800-654-3282).

Q4 2003 IDC Quarterly Tracker and Evans Research.

3-year standard warranty parts and labor/ 2-year printhead.

Available in the U.S. and Canada only.

All specifications subject to change without notice. © 2004 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.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.

OKI®MICROLINE®490/491

24-Pin Impact Printers

Ordering Information

Description Part Numbers

MICROLINE 490/Parallel/120V 62418901 MICROLINE 490/Parallel/230V 62418902 MICROLINE 491/Parallel/120V 62419001 MICROLINE 491/Parallel/230V 62419002

Accessories

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 70046501 OkiLAN

6020e 10/100 Base-T Ethernet

External Print Server 70036001 OkiLAN 6010e 10 Base-T Ethernet

External Print Server 70034401 Self-inking Ribbon Cartridge 42377801 Co-ax Adapter 70047201

Twin-ax/Co-ax (Available through Third Party.

Call 1-800-OKI-DATA.)

OKIcare®Overnight Exchange Warranty Extensions

U.S. Canada

OKI ML400 Series 1-Yr.Warranty Ext. 58264901 58263111 OKI ML400 Series 2-Yr.Warranty Ext. 58264902 58263112

OKIcare®Depot Warranty Extensions

U.S. Canada

OKI ML400 Series 1-Yr.Warranty Ext. 58264701 58265511 OKI ML400 Series 2-Yr.Warranty Ext. 58264702 58265512 Upgrade to 3-Yr. Overnight Exchange 58264801 58264811