121 Black Toner Cartridge 2-Pack 121 Toner Cartridge High Yield Compatible Replacement for Canon 121 Black Toner Cartreidge CRG-121 CRG121 CRG 121 for Canon imageCLASS D1620 D1650 1620 1650 Printer LBP3560 The chip is a crucial

The chip is a crucial component that allows your printer to communicate with the cartridge and track usage

About Cool Toner

400 pages once you turn on the printer

HP Color Laserjet Pro MFP M479 HP Color Laserjet Pro M454 Laser Printer

Another difference is the cost per page

121 Black Toner Cartridge 2-Pack 121 Toner Cartridge High Yield Compatible Replacement for Canon 121 Black Toner Cartreidge CRG-121 CRG121 CRG 121 for Canon imageCLASS D1620 D1650 1620 1650 Printer LBP3560 The chip is a crucialIncluded: 2 packs cartridge 121 black toner compatible for d1620 toner cartridge Page Yield: 5,000 pages per 121 black toner cartridge at 5% coverage (Letter A4) for imageCLASS D1620 toner Compatible for imageCLASS D1620 D1650 1620 1650 printer ink Color: 2 Pack 121 Black Toner Cartridge Compatible for D1620 D1650 Toner Cartridge Excellent Performance: 121 black toner cartrigde deliver superior printing results with vivid colors and clear prints