HP DeskJet 3910HP

HP DeskJet 3910HP, DeskJet 3915,HP DeskJet 3918,HP DeskJet 3920,HP DeskJet 3930,HP DeskJet 3930v,HP DeskJet 3938,HP DeskJet 3940,HP DeskJet 3940v

Cartridge HP 21 black & Cartridge HP 22 colour 

Refill Instructions for HP 21 black|HP 22 colour