Genuine OKI ink ribbon cartridges, like the 09002309, provide you with the crispest characters when using the ML3390, ML3391 or any other compatible printer. Produced by the manufacturer, to the exact specifications of your machine, nothing is more reliable than using the OKI 09002309 ink ribbon.Estimated to offer users of these well-established machines 2,000,000 printed characters in draft mode, the OKI 09002309 ribbon cartridge rarely needs replacing. Every original OKI 09002309 ink ribbon cartridge benefits from free shipping within the UK and comes fully guaranteed.