Cartridge. Print technology: Dot matrix. Brand compatibility: OKI. Black. Manufactured for metered inkflow for consistent, high quality output. - 8 million character ribbon. - Minimum wear on printer due to high quality ribbon material. Performance. Compatibility. ML5790eco. Brand compatibility. OKI. Type. Cartridge. Product colour. Black. Print yield. 8000000 characters. Print technology. Dot matrix. Printing colours. Black. Logistics data. Harmonized System (HS) code. 84439990