Supplies for the Optra K 1220 laser printer consist of a 5, 000 page toner cartridge (available with one or two cartridges per carton) & a 32, 500 page print unit. Both items are easy to access for installation & removal. The Optra K toner cartridge & print unit are integral components of the Optra K laser printer. They produce consistent quality throughout their specified life including 1200 dpi image quality. The Optra K toner cartridge also provides a 25% larger toner capacity than its major competitor. The design of the toner cartridges assures easy, clean installation & removal.