Toner cartridge delivers crisp, black text and graphics. Ideal for business or home users who need professional-quality laser output. The microfine toner cartridge takes full advantage of a compatible printer's smaller-dot, 600-dpi resolution and Hewlett-Packard's resolution enhancement technology. Cartridge is designed for use with the Hewlett-Packard LaserJet 5MP, 5P, 6MP, 6P, 6PSE and 6PXI. Cartridge yields approximately 4,000 pages.