OKI ML5520ECO Mono Dot Matrix Printer

Model: ML5520ECO

  • USB & Parallel
  • 507 cps (Fast Draft) 380 cps (Utility)
  • 240 x 216 dpi
  • Carbon Copy: 5 + 1 Original
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    • FREE Next Business Day Delivery on orders over £120*


      During these very unsettling times, we at Printernet just wanted to give an update on our deliveries. At this moment, deliveries are running as normal as possible with Next Working Day delivery schedules still being met. This I am sure you will understand could change at any time. We will always do our best to get your order to you on time, but that can no longer be guaranteed. If there is a time when your delivery will not be on time, we will endeavor to let you know, but that may not always be possible as sometimes the courier does not always let us know in good time. We understand this is not ideal, however we will do our best.

      Should you have any questions about an order that is running late, please contact us at info@printernet.co.uk and state your order number so we can look into it urgently

      Order Value Inc VAT

      Delivery Address

      Delivery Service

      Delivery Cost

      Under £120 Mainland UK Next Business Day* £7.00
      Over £120 Mainland UK Next Business Day* FREE
      Under £120 Non Mainland UK 2 Business Days* £15.00
      Over £120 Non Mainland UK 2 Business Days* £15.00

      Saturday deliveries are sometimes available on request. Please call 01344 354944 for more information

      *Orders must be placed by 4.30PM for this service


      Please note that our compatible inks or toners come from a different warehouse and the cut off for next working day delivery is 2PM, however the printer will still be delivered next working day even if ordered by 4.30PM.

      For more information on our delivery policy, please click here

    £0.00 Ex VAT: £0.00 Inc VAT:

    £0.00 Ex VAT: £0.00 Inc VAT:

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    • Overview

      OKI ML5520ECO Mono Dot Matrix Printer

      High performance, eco-friendly 9-pin printers, perfect for high volume document production.

      Key Features

      • Up to 570 characters per second (cps) print speed
      • 80 and 136 column versions available
      • OKI Microline, IBM and Epson emulations
      • Scalable fonts and barcode support
      • Eco-friendly technology, sleep mode consumes just 1.5W
      • Powerful, highly durable 9-pin print head
      • Multi-part paper-handling (original + 5 copies)
      • Easy change 4 million character cartridge ribbon
      • Low-tear and auto-park help eliminate wastage
      • USB and Parallel interfaces with RS232 and Network options
      • Three-year warranty as standard (product registration required)

      High volume, high speed printing and energy savings

      The ML5520eco and 136 column ML5521eco dot matrix printers are perfect for high speed, high volume data listing and multi-part forms applications, where fast throughput and reliability are a must. Designed to be tough enough for mission critical printing in the most demanding of environments these high performance desktop printers have provided many years of dependable service to industry. Now enhanced with the latest power management technology power consumption is reduced to just 1.5W in “Sleep mode” to deliver significant energy savings over the products long life.

      Application and media friendly

      The ML5520/1eco printers can handle cut sheets, continuous feed paper and multi-part forms. They are ideal for the fast printing of receipts, invoices, picking lists, reports and spread sheets in industrial and retail applications. Their powerful 9-pin print head can produce up to 6 copies simultaneously for highly efficient document production. Top, bottom and rear paper input paths and a builtin rear push tractor feed unit provide flexibility. Optional bottom push and top pull tractor units are available to allow the loading of two different media types simultaneously or the feeding of heavier papers and labels. A Roll Paper Stand option is available for the ML5520eco for fast printing of long passenger lists, call logs, data logs etc.

      Helping the environment and saving money

      The ML5520/1eco printers have been enhanced to be eco-friendly. OKI’s SoC (System on Chip) technology reduces power consumption to an impressively low 1.5W in “Sleep mode” helping to reduce your carbon footprint as well as keeping your running costs and energy consumption to a minimum.

      OKI’s commitment to customers

      The OKI brand is one of proven reliability and value. With almost half a century of experience in the impact printer industry, you are guaranteed a best-in-class performance and great value for money products. And, for total peace of mind, just register your printer and take advantage of our extended three year on-site warranty at no extra cost.

    • Specifications

      Memory Max. 128KB
      Operating Temperature/Humidity Operating: 5 - 36 °C, 20 - 80 %RH
      Storage: -10 - 50 °C, 5 - 95 %RH
      No condensation
      Print Head 9 Pin
      Print Head Life: Approx. 600 million strokes/ pin
      Embedded Fonts Resident Font: High Speed Draft, Utility, NLQ Courier, NLQ Gothic, Scalable Courier, Scalable Gothic, OCR-B
      Font Style: Bold, Double Width, Double Height, Emphasized, Italics, Over score, Underline
      1-D Barcode: UPC-A, UPC-E, EAN8, EAN13, Code39, Interleaved 2 of 5 (ITF), Code128, POSTNET, Codabar (NW-7), Industrial 2 of 5, Matrix 2 of 5
      Emulation OKI Microline, ESC/P emulation, IBM ProPrinter emulation
      Print General Dot Wire Diameter: 0.3 mm
      Print Direction: Bidirectional/Unidirectional printing, Short line-seeking printing
      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)
      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, Proportional
      Near Letter Quality : 10.0 cpi, 12.0 cpi, 15.0 cpi, 17.1 cpi, 20.0 cpi, Proportional
      Carbon Copy: Normal print mode: original + 5sheets(Total Thickness < 0.36mm)
      Print Resolution 240 x 216 dpi
      Print Technology Serial Impact Dot Matrix Method
      Printing Speed Super Speed Draft:
      570cps (12cpi)
      High Speed Draft:
      507cps (10/12cpi)
      380cps (10/12cpi)
      Near Letter Quality:
      95cps (10/12cpi)
      Feed Speed: 4.5 inches per second
      Feed Rate: 4.23mm(1/6”) line feed: Approx. 48 milliseconds
      Paper & Handling
      Paper Handling Paper Route: Tractor feeder (Rear), Tractor feeder (Bottom), Manual (Top), Roll paper stand, Cut sheet feeder (Rear)
      Printing Width: 80 characters/line at ANK 10 cpi
      Paper Type: Continuous paper
      Paper Weight Adjustment: Manual
      Paper Size:
      Continuous paper: Width 76.2-254.0mm x Length 76.2-355.6mm
      Single part paper: Width 99.1-216.0mm x Length 99.1-356.0mm
      Multi part paper: Width 76.2-254.0mm 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
      Mean Time Before Failure: 20,000 hours
      Interface Type - Non PC IEEE1284-1994 Bi-directional Parallel, USB 2.0 (Full Speed), (Optional) 100BASE-TX/10BASE-T, (Optional) RS-232C (25pin)
      Energy Star Yes
      Power Consumption Operating: Max. -W (ISO10561 (Utility, Range1) Printing Approx. 51W)
      Power Save: < 1.7W
      Operating Systems
      Operating System 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
      Dimensions & Weight
      Dimensions (W x D x H) 398mm x 345mm x 153mm
      Weight 5.9kg
      In The Box
      In The Box Printer
      Starter Ribbon cartridge
      Power cable
      Consumable type Ribbon Life: Black : 4 million characters
      Power Single phase 220 - 240 VAC ±10%, 50/60 Hz ±2%
    • In the Box

      Starter Ribbon cartridge
      Power cable

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