Original HP 641A LaserJet Toner Set (C9720A, C9721A, C9722A, C9723A) - Black, Cyan, Magenta, Yellow
Arizone Toner Cartridge 641A C9723A Magenta
Amazon.com: HP Original 641A Black Toner Cartridge | Works with Color LaserJet 4600, 4610, 4650 Series | C9720A : Office Products
TCT Premium Compatible Toner Cartridge Replacement for HP 641A C9723A Magenta works with HP Color LaserJet 4600 4610 4650 Printers (8,000 Pages) - Walmart.com
HP C9723A 641A 4600 Toner Cartridge Magenta LaserJet 4600 4600DN 4600DTN 4600HDN 4600N 4650 4650DN – Ink Direct Corporation