LaserJet 15X ultraprecise print cartridge is designed to work precisely with the HP LaserJet 1200/1220/3300 Series printers for output that is always clear, always sharp. Ultraprecise advancements and an economical price provide an ideal cartridge solution for the low-volume user who values HP reliability and quality with every printed page. Ultraprecise advancements in the C7115X cartridge include dual polymer toner and a helical roller drive.