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OKI MICROLINE 491 Impact Dot Matrix Monochrome Printer with 360 x 360 dpi Resolution, Parallel, USB 1 of 2
OKI MICROLINE 491 Impact Dot Matrix Monochrome Printer with 360 x 360 dpi Resolution, Parallel, USB 2 of 2
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Learn more about OKI MICROLINE 491 Impact Dot Matrix Monochrome Printer with 360 x 360 dpi Resolution, Parallel, USB:

Mfg Part#: 62419001
Sku: 10334565
UPC: 051851420110
UPC 14: 00051851420110
See more in Printers

A forms printer with letter-quality output, designed to perform in demanding environments.

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 single 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 ware-house 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.

    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 zero-tear 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.1 The rugged, reliable OKI ML490/491 printers are sure to win you over, too!

    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. 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 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.

  • Tech Specs

    Tech Specs Technology, Speed and Print Characteristics
    Tech Specs Printhead: 24-Pin SIDM
    Tech Specs Graphics Resolution: 360 (H) x 360 (V) dpi maximum
    Tech Specs Feed Rate: 4.5 ips (11.4 cm/sec.)
    Tech Specs Print Speed and Character Matrix:
    Tech Specs Print Speed and Character Matrix:
    Tech Specs Mode Letter Quality Utility Hi-Speed Draft Utility
    Tech Specs (12 cpi) (12 cpi) (10 cpi) (15 cpi)
    Tech Specs Speed (in cps) 126 380 420 475
    Tech Specs Emulation, Interface and Memory
    Tech Specs Emulation: Epson® LQ, IBM® ProPrinter®, IBM AGM, IBM XL24
    Tech Specs Interface: Standard – IEEE Parallel and USB; OkiLAN®
    Tech Specs 10/100 Base-T Internal Print Server (ML490/n, ML491/n);
    Tech Specs Optional – RS-232C Serial and Ethernet® via OkiLAN 10/100
    Tech Specs Base-T Internal or External Print Servers
    Tech Specs Memory: 128K
    Tech Specs Compatibility
    Tech Specs Operating Systems: Windows® Vista® 32/64, XP, 2000,
    Tech Specs 98/95, 3.x and NT® 4.0; MS-DOS®
    Tech Specs Paper Handling
    Tech Specs Paper Input: Single-part, Multi-part, Continuous forms,
    Tech Specs Cut sheet, Index stock, Envelopes, Labels
    Tech Specs Number of Copies: 5
    Tech Specs Thickness: 0.017" (0.43 mm) maximum
    Tech Specs Paper Feeding: Rear Push and Friction Feed
    Tech Specs Options: Bottom Push Tractor, Top Pull Tractor,
    Tech Specs Cut Sheet Feeder, Roll Paper Stand
    Tech Specs Warranty and Reliability
    Tech Specs Limited Warranty: 3-Year parts and labor, 2-Year printhead
    Tech Specs MTBF: 20,000 hours (25% duty cycle/35% page density)
    Tech Specs Reliability:
    Tech Specs ML420 – 20,000 pg./mo. duty cycle
    Tech Specs ML421 – 12,000 pg./mo. duty cycle
    Tech Specs Printhead Life: 400 million characters
    Tech Specs Ribbon Life: 4 million characters
    Tech Specs Environmental
    Tech Specs Size (WxDxH):
    Tech Specs ML490 – 15.7" x 13.6" x 6.0" (39.8 cm x 34.5 cm x 15.2 cm);
    Tech Specs ML491 – 21.7" x 13.6" x 6.0" (55.1 cm x 34.5 cm x 15.2 cm)
    Tech Specs Net Weight:
    Tech Specs ML490 – 16.4 lb. (7.43 kg); ML491 – 21.2 lb. (9.6 kg)
    Tech Specs Acoustic Noise: 56 dBA
    Tech Specs Power Requirements:
    Tech Specs 120V Model: 120 VAC +6%, -15%;
    Tech Specs 230V Model: 230 VAC +15%, -14%
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