This is a remanufactured Canon 3845A002 (EP-72) black laser toner cartridge guaranteed to perform with your Canon laser printer. It replaces the original Canon EP-72 laser toner cartridge and delivers a yield of up to 20,000 pages. The cartridge contains up to 60% new parts, including OPC drums and wiper blades, making it an economical alternative to expensive OEM cartridges. The use of remanufactured toner cartridges does not void your printer's warranty. Backed by our 100% Quality Satisfaction Guarantee.