Compatible HP 503A Q7583A Magenta Toner Cartridge by Premium Quality | Ink4Less.com
HP 503A 2x Magenta Q7583A 1x Yellow Q7582A 2x Cyan Q7581A Lot of 5 - N – NTC Tech
Amazon.com: TCT Premium Compatible Toner Cartridge Replacement for HP 503A Q7583A Magenta Works with HP Color Laserjet 3800N 3800DN 3800DTN, CP3505 Printers (6,000 Pages) : Office Products