OKI Black Ribbon 8 Million Characters - 44173405 To get the very best out of your printer, OKI provide everything you need to maximise the quality and versatility of its output. Whatever the print job required, we have the high quality products to help your business do it. Always use genuine OKI Original consumables. Counterfeit and compatible consumables could damage your printer hardware, result in poor quality printing and may invalidate your OKI warranty.