Whether you need regular output of continuous multi part forms, fine business correspondence, or combinations of both the 24-pin OKI ML491 printer is the single solution. It handles the printing needs of the most demanding business environments. Yet it also produce letter quality type and high resolution graphics for the office and executive suite. 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. The ML491 runs the gamut of paper types and envelopes at lightning speed, reaching 475 cps in Utility/Draft mode and 105 cps in Letter Quality mode. Their rugged printhead 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.
Features
Print Head: 24 Pin (200 million character printhead life)
Carriage Type: Wide (up to 16")
Resolution: 360 dpi x 360 dpi maximum resolution
Print Speed: Up to 475 cps
Memory: 128 KB receive buffer/memory
Reliability: Rated at 20,000 hours MTBF
Connectivity: Parallel, Serial and USB
Environments: PC Compatible
Warranty: 3 Year Limited covering parts and labor
Options
Oki MICROLINE 491 Dot Matrix Printer: Supplies and Accessories Options
Envelopes, labels, continuous forms, index cards, bond paper
Max Media Size (Custom)
16 in
Media Sizes
Roll (16 in)
Media Thickness
0.017 in
Media Weight
45 g/m2 - 180 g/m2
Media Feeder(s)
1 x manual load - 1 rolls - Roll (16 in)
Max Sheets in Multi-Part Form
5
Monthly Duty Cycle
12000 pages
The duty cycle is the maximum recommended number of printed pages per month to ensure long printer life.
Connectivity
1 x parallel - IEEE 1284 (EPP/ECP) - 36 pin Centronics
1 x Serial
1 x USB - 4 pin USB Type B
Miscellaneous
Consumables Included
1 x ribbon - up to 7.5 million characters
1 x printhead - up to 200 million characters
MTBF
20,000 hour(s)
Compliant Standards
EPA Energy Star RFID
Power
Power Device
Power supply - internal
Voltage Required
AC 120 V
Frequency Required
50/60 Hz
Power Consumption Operational
78 Watt
Power Consumption Stand by / Sleep
10 Watt
Software Included
Drivers & Utilities
OS Required
Microsoft DOS, Microsoft Windows 3.x/95/98, Microsoft Windows 2000 / NT4.0, Microsoft Windows XP
Dimensions
(H X W X D)
Unit
21.7" x 13.6" x 6"
Weight
Unit
21.2 lbs
Environmental Parameters
Min Operating Temperature
41 °F
Max Operating Temperature
96.8 °F
Humidity Range Operating
20 - 80%
Sound Emission
56 dBA (operating)
Warranty
Limited warranty - parts and labor - 3 years
Limited warranty - printhead - 2 years
Technical support - phone consulting - 3 years
Oki MICROLINE 491 Dot Matrix Printer Features
Unequaled Performance Technology 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 resistanceThe ML491 printer handles a number of paper types and envelopes at lightning speed, reaching 475 cps in Utility/Draft mode and 105 cps in Letter-Quality mode. 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.Field-proven reliability is just one reason Oki Microline printers are the most widely-used impact printers in North America.
Built to Last, Inside and Out The performance-optimized power supply of the Oki Microline 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. The ergonomically-designed, impact-resistant chassis protects the ML491 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.
Advanced Paper Handling
Sturdy and Sophisticated
User-Friendly Performance
Oki Reliability 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.
Oki MICROLINE 491 Dot Matrix Printer Included Items
Okidata MICROLINE 491 Dot Matrix Printer
Documentation
CD ROM: Drivers and Utilities ** Cable Not Included
Oki MICROLINE 491 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
