Oki Microline ML3391eco Ink Cartridges

The following 1 products are guaranteed to work in your Oki ML3391eco printer:

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Black ink ribbons for Oki Microline ML3391eco printer

Genuine Oki Microline Black 9002309 Nylon Ribbon (09002309)
  • Microline black nylon ribbon
  • Lowest online price guaranteed

    If within 7 days of buying a product from us, you find the same product cheaper at any other UK online store, we will refund you with 100% of the difference.

  • 12 month guarantee and FREE returns

    If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

    Whatever the reason for returning items to cartridgesave.co.uk, you will never pay a penny for postage.

2 million
characters in draft
print mode
1 £12.62 (£15.15 inc VAT)
2 £10.98 (£13.18 inc VAT)
3+ £10.43 (£12.52 inc VAT)
Prices includes FREE next-day delivery
2 million
characters in draft
print mode
£12.62 (£15.15 inc VAT)

FREE next-day delivery

Multi-buy discount
2 £10.98 (£13.18 inc VAT)
3+ £10.43 (£12.52 inc VAT)

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Microline ML3391eco Printer Review

Expert review of the Microline ML3391eco printer

Our Verdict:

The Oki Microline-ML3391eco is a 136-column, 24-pin-wide carriage dot matrix printer that produces sharp monochrome documents. With a three-year warranty for additional peace of mind, this well-built machine will work reliably even in demanding environments. It is designed for the rapid printing of documents such as receipts, reports, invoices and spreadsheets and has a comprehensive range of fonts and barcode support.

This model is particularly recommended for anyone needing a printer for a production or retail environment. However, if space is short, then it is wise to consider whether this printer will meet all your needs before purchasing.


The dimensions of the Oki Microline-ML3391eco are 552 x 345 x 147mm, and it comes in a classic grey colour. The print resolution is 360 x 360dpi. Connection is achieved via a USB cable or parallel interface. The machine takes a printer ribbon that produces two million characters each. The print speed is 260 characters per second. There are top, bottom and rear input paths to switch between paper forms and single sheets without interrupting the printing process, and a built-in rear push tractor feed unit provides added flexibility.


The Oki Microline-ML3391eco is a hard-working printer and robust enough to cope in tough workplaces. Oki’s System on Chip energy-saving technology reduces running costs significantly over the lifetime of the printer.

The machine prints easily on cut sheets, multi-part forms, and continuous feed paper, producing up to five copies of a document simultaneously. The printer ribbon is easy to change, which minimises the amount of down time.


The Oki Microline-ML3391eco is a dot matrix printer that only prints in monochrome with no function for copying, faxing or scanning. For printing graphics and photographs, an alternative printer would be needed.