Compact design – Fits into small offices and point-of-sale locations

Ideal for a range of business and customer-facing applications, the ultra-reliable ML1120eco can be accommodated in the smallest of spaces.

  • 80 column dot matrix printer
  • Compact space-saving design – 349 x 232 x 150mm (WxDxH)
  • High mean time between failures (MTBF) of 10,000 hours

Easy-to-use – Simple operator panel, low printing noise

System and user-friendly, the ML1120eco features an easy-to-use operator panel with low printing noise to avoid disruption. Multiple emulations and parallel, serial or USB 2.0 connectivity are all included as standard for easy installation.

  • USB, Parallel and RS232C interfaces
  • Epson, LX, IBM Graphics and Microline emulations
  • ISO7779 53dB(A) noise level

Versatile paper handling – Prints on cut sheet paper and continuous forms up to 5 parts

The highly-versatile ML1120eco prints on cut sheet paper and continuous forms up to 5 parts, with quick print speeds and multiple configurations suitable for a wide range of tasks, from invoices, receipts and dispatch notes to address labels and end-of-day reports.

  • Prints on cut sheet paper and multi-part forms up to 5 copies
  • Multi-position tractor feed unit handles continuous paper with ease
  • Up to 375 characters per second (cps) print speed

Cost-effective – Low power consumption of just 1.6W in Sleep Mode

Featuring a durable 9-pin print head and OKI’s System on Chip (SoC) technology, the ML1120eco reduces power consumption and lowers running costs.

  • Durable 9-pin print head
  • 4 million character ribbon life
  • Eco-friendly technology, Sleep Mode consumes just 1.6W


Printing Technology Serial Impact Dot Matrix Method
Print Head 9 Pin
Dot Wire Diameter 0.3 mm
Print Direction Bidirectional/Unidirectional printing, Short line-seeking printing
Graphic Resolution Max. 240(H) x 216(V) dpi
Print Speed Super Speed Draft : 375 cps, High Speed Draft : 333 cps, Utility : 250 cps, Near Letter Quality : 63 cps
Line Feed Pitch 4.23mm (1/6 “), 3.18mm (1/8 “), n x 0.35mm(n/72 “) (n=1-85), n x 0.18mm(n/144 “) (n=0-255), n x 0.12mm(n/216 “) (n=0-255)
Feed Speed 4.0 inches per second
Feed Rate 4.23mm(1/6”) line feed: Approx. 52 milliseconds
Paper Route Tractor feeder (Rear), Tractor feeder (Bottom), Manual (Top)
Character Pitch Super Speed Draft : 12.0 cpi
High Speed Draft : 10.0 cpi, 12.0 cpi, 15.0 cpi, 17.1 cpi, 20.0 cpi
Utility : 10.0 cpi, 12.0 cpi, 15.0 cpi, 17.1 cpi, 20.0 cpi, Propotional
Near Letter Quality : 10.0 cpi, 12.0 cpi, 15.0 cpi, 17.1 cpi, 20.0 cpi, Propotional
Interface IEEE1284-1994 Bi-directional Parallel, USB 2.0 (Full Speed), RS-232C (25pin)
Emulation OKI Microline, ESC/P emulation, IBM ProPrinter emulation
Supported OS Windows Vista, Windows Vista x64, Windows Server 2003, Windows Server 2003 x64
Receive Buffer Max. 128KB
Resident Font NLQ Courier, NLQ Gothic, Scalable Courier, Scalable Gothic, High Speed Draft, Utility, OCR-B
Font Style Double Width, Double Height, Emphasized, Bold, Italics, Over score
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 76.2-254.0mm x Length 76.2-355.6mm
Single part paper: Width 100.0-257.0mm x Length 100.0-356.0mm
Multi part paper: Width 76.2-254.0mm x Length 76.2-355.6mm
Paper Weight Continuous paper : 52 – 82 gsm
Single part paper : 52 – 90 gsm
Multi part paper : 40 – 58 gsm
Copy Capability Normal print mode: original + 4sheets(Total Thickness < 0.33mm)
Dimensions(WxDxH) 349 x 232 x 150 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. 33W)
Idle: Approx. 6W
Sleep: < 1.3W
Safety & Environment Regulation Energy Star, GS Mark, CE Mark, EMC-Directive, CE Mark, GS Mark, EMC-Directive
Noise Level Operating :Approx. 53 dBA
Idle: < 0 dBA
Power Save: < 0 dBA or Background level
MTBF(Mean Time Before Failure) 10,000 hours
Ribbon Life Black : 4 million characters
Print Head Life *1 Approx. 300 million strokes/ pin
In the Box Ribbon cartridge, Power cable, CD-ROM, Others


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