HP CF380XC (312X) Contractual LaserJet standard yield black toner cartridge print professional quality documents and marketing materials in your own office. Maintain productivity and avoid the hassle and expense of reprints and wasted time and supplies with cartridges designed to be reliable. Count on easy reordering, replacement and recycling of supplies. Install original HP toner cartridges quickly and easily. HP helps you recycle cartridges through the HP Planet Partners program.