Toner Graphics compatible replacement for the Hewlett Packard CF380A (HP 312A) black laser toner cartridge is guaranteed to perform with your HP LaserJet Pro laser printer. It replaces the original HP CF380A laser toner cartridge. This is not a remanufactured cartridge and it was not manufactured by HP. Our compatible replacement CF380A laser toner cartridge is specially engineered to meet the highest standards of quality and reliability. Our CF380A toner page yield meets or exceeds OEM (Original Equipment Manufacturer) page yield for the CF380A and offers high-quality printing results. The use of compatible replacement laser toner cartridges and supplies does not void your printer's warranty. We offer a 100% Quality Satisfaction Guarantee on our compatible CF380A laser toner cartridges and supplies.