Fast, reliable output – Quick, consistent performance in commercial environments

Reliably delivering a range of print output at speeds of up to 390cps, the ML3391eco 136-column dot matrix printer produces high-speed data listing and multi-part forms applications with ease.

  • Up to 390 characters per second (cps) print speed
  • USB and Parallel interfaces with RS232 and Network options
  • IBM and Epson emulations

Versatile configuration – Multiple settings and print options

Producing up to 5 high-quality documents simultaneously, the versatile ML3391eco dot matrix printer is easily configured to create a wide range of output including receipts, invoices, picking lists, reports and spreadsheets.

  • Multi-part paper-handling (original + 4 copies)
  • Top, bottom and rear paper input paths and a built-in rear push tractor feed unit
  • Optional bottom push and top pull tractor units available for loading two different media types simultaneously or for feeding heavier papers and labels

High-quality results – Sharp 24-pin output, detailed, readable text

Featuring a 24-pin print head, the ML3391eco delivers crisp, readable print quality ideal for detailed labels, barcodes, forms and other commercial output.

  • 24-pin print head delivers sharp, detailed text
  • Easy change 2 million character cartridge ribbon
  • Comprehensive range of scalable fonts and barcode support

Eco-features – Energy-saving technology, paper-saving design

Built with OKI’s SoC (System on Chip) power management technology, the ML3391eco dot matrix printer includes paper-saving design features and consumes just 1.5W energy in Sleep Mode, lowering running costs.

  • Eco-friendly technology, Sleep Mode consumes just 1.5W
  • Low-tear and auto-park help eliminate wastage

Specifications

Printing Technology Serial Impact Dot Matrix Method
Print Head 24 Pin
Dot Wire Diameter 0.2 mm
Print Direction Bidirectional/Unidirectional printing, Short line-seeking printing
Graphic Resolution Max. 360(H) x 360(V) dpi
Print Speed Utility : 260 cps, Letter Quality : 87 cps
Line Feed Pitch 4.23mm (1/6 “), 3.18mm (1/8 “), n x 0.42mm(m/60 “)(m=0-127), n x 0.35mm(n/72 “) (n=1-85), n x 0.14mm(n/180 “)(n=0-255), n x 0.12mm(n/216 “) (n=0-255), n x 0.07mm(n/360 “) (n=0-255)
Feed Speed 4.5 inches per second
Feed Rate 4.23mm(1/6”) line feed: Approx. 46 milliseconds
Paper Route Manual (Top), Tractor feeder (Rear), Tractor feeder (Bottom), Cut sheet feeder (Rear)
Character Pitch Utility : 10.0 cpi, 12.0 cpi, 15.0 cpi, 17.1 cpi, 20.0 cpi, Propotional
Letter Quality : 10.0 cpi, 12.0 cpi, 15.0 cpi, 17.1 cpi, 20.0 cpi, Propotional
Printing Width 136 characters/line at ANK 10 cpi
Interface IEEE1284-1994 Bi-directional Parallel, USB 2.0 (Full Speed), (Optional) 100BASE-TX/10BASE-T, (Optional) RS-232C (25pin)
Emulation ESC/P2 emulation, IBM ProPrinter emulation, IBM AGM emulation
Supported OS Windows 7, Windows 7 x64, Windows Vista, Windows Vista x64, Windows Server 2008 R2, Windows Server 2008, Windows Server 2008 x64, Windows Server 2003, Windows Server 2003 x64
Receive Buffer Max. 128KB
Resident Font Utility, LQ Gothic, LQ Roman, LQ Courier, LQ Swiss, LQ Prestige, LQ Orator, LQ Swiss Bold, Scalable Roman, Scalable Courier, Scalable Swiss, OCR-A, OCR-B
Font Style Double Width, Double Height, Enhanced, Emphasized, Bold, Italics, Over score, Outline, Shadow, Underline
1-D Barcode UPC-A, UPC-E, EAN8, EAN13, Code39, Interleaved 2 of 5 (ITF), Code128, POSTNET
Paper Type Continuous paper, Continuous copying paper, Cut sheet, Card, Envelope, Label
Paper Weight Adjustment Manual
Paper Size Continuous paper: Width 76.2-406.4mm x Length 76.2-355.6mm
Single part paper: Width 99.1-363.2mm x Length 99.1-356.0mm
Multi part paper: Width 76.2-406.4mm x Length 76.2-355.6mm
Paper Weight Continuous paper : 45 – 90 gsm
Single part paper : 45 – 90 gsm
Multi part paper : 35 – 40 gsm
Copy Capability Normal print mode: original + 4sheets(Total Thickness < 0.36mm)
Dimensions(WxDxH) 552 x 345 x 147 mm
Operating Environment Operating: 5 – 35 °C, 20 – 80 %RH
Storage: -10 – 50 °C, 5 – 95 %RH
No condensation
Power Source Single phase 220 – 240 VAC ±10%, 50/60 Hz ±2%
Power Consumption Operating: Max. -W (ISO10561 (Utility, Range1) Printing Approx. 35W)
Power Save: < 1.7W
Safety & Environment Regulation Energy Star, CE Mark, GS Mark, EMC-Directive
Noise Level Operating :Approx. 57 dBA
Idle: < 0 dBA
Power Save: < 0 dBA or Background level
MTBF(Mean Time Before Failure) 10,000 hours
Ribbon Life Black : 2 million characters
Print Head Life *1 Approx. 300 million strokes/ pin
In the Box Ribbon cartridge, Power cable, CD-ROM, Others

Footnotes;

*1 Average in 10cpi utility mode at 25%duty and 35% page density