These HP 912 ink cartridges are suitable for various HP OfficeJet and OfficeJet Pro printers. You can find a list with suitable printers on the product page of the cartridges. Check if these HP 912 ink cartridges fit in your printer. With a combo pack, you replace all colors ink of your printer in one go. Do you print a lot and often? Choose the HP 912XL cartridges, these contain more ink than regular cartridges.