The Hewlett-Packard - 131A LaserJet Black Toner Cartridge prints professional-quality documents and marketing materials in your home or office. Maintain productivity - and avoid the hassle and expense of reprints and wasted time and supplies - with cartridge designed to be reliable. Plus, count on easy supplies reordering, replacement and recycling. Install HP toner cartridge quick and easy. It helps you recycle cartridges through the HP Planet Partners program.