OKI B721 Black Toner, 45488903

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This is the genuine OKI black toner cartridge for the B721 series mono laser printer, part number 45488903. Fitting the manufacturer's own cartridge keeps toner density matched to the printer's calibration and removes any question of chip recognition. Replace it when the printer reports low toner, when pages start printing grey rather than solid black, or when streaking appears down the page. Brand: OKI Part number: 45488903 Consumable type: toner cartridge Colour: black Suits: OKI B721 series mono laser printer See the full OKI range, or compare options across our toner cartridges. Show more