Premium C5058A (HP 90) Black Inkjet Cartridge fully compatible with the HP DesignJet 4000, 4020, 4520. The use of compatible supplies does not void your printer warranty.
Premium C5061A (HP 90) Cyan Inkjet Cartridge fully compatible with the HP DesignJet 4000, 4020, 4520. The use of compatible supplies does not void your printer warranty.