HP DesignJet 20ps

HP C4838AN (HP 11) Yellow Inkjet Cartridge
C4838AN Yellow Inkjet Cartridge compatible with the HP Business InkJet 1100/ 1200/ 2200/ 2230/ 2250/ 2280/ 2300/ 2600/ Color Inkjet cp1700/ DesignJet 100/ 10ps/ 110/ 120/ 20ps/ 50ps/ 70/ DeskJetJet 2200/ 2250. The use of compatible supplies does not void your printer warranty.

HP C4913A (HP 82) Yellow Inkjet Cartridge
C4913A Yellow Inkjet Cartridge compatible with the HP DesignJet 500/ 800.

HP C4836AN (HP 11) CyanInkjetCartridge
C4836AN Cyan Inkjet Cartridge compatible with the HP Business InkJet 1100/ 1200/ 2200/ 2230/ 2250/ 2280/ 2300/ 2600/ Color Inkjet cp1700/ DesignJet 100/ 10ps/ 110/ 120/ 20ps/ 50ps/ 70/ DeskJetJet 2200/ 2250. The use of compatible supplies does not void your printer warranty.

HP C4837AN (HP 11) MagentaInkjetCartridge
C4837AN Magenta Inkjet Cartridge compatible with the HP Business InkJet 1100/ 1200/ 2200/ 2230/ 2250/ 2280/ 2300/ 2600/ Color Inkjet cp1700/ DesignJet 100/ 10ps/ 110/ 120/ 20ps/ 50ps/ 70/ DeskJetJet 2200/ 2250. The use of compatible supplies does not void your printer warranty.