Save even more with our 2 pack remanufactured Canon laser cartridges. This bulk set includes 2 black 128/ 3500B001AA laser toner cartridges. Why pay twice as much for brand name OEM Canon printer laser cartridges when our remanufactured printer supplies deliver excellent quality results for a fraction of the price? remanufactured black replacement 3500B001AA laser toner cartridges are specially engineered to meet the highest standards of quality, reliability and exceptional yields that meet or exceed OEM Original Equipment Manufacturer standards for the 3500B001AA and offer high-quality printing results. The use of remanufactured replacement laser toner cartridges and supplies does not void your printers warranty. This replacement Canon 3500B001AA laser toner cartridge includes an electronic smart chip. The smart chip allows your Canon printer and our remanufactured 3500B001AA cartridge to interact and track toner usage.This combo set works with the following Canon ImageClass printers MFD550, MF4412, MF4420n, MF4450, MF4550, MF4450d, MF4570dn, MF4580dn.