Amazon.com: HP 12A Black Toner Cartridge | Works with HP LaserJet 1010, 1020, 3015, 3020, 3030, 3050 Series; HP LaserJet MFP M1005, M1319 Series | Q2612A : Office Products
HP LaserJet 1020 Toner Cartridges | CompAndSave
Printer Specifications for HP LaserJet 1020 Printer Series | HP® Customer Support