HP 938 ink cartridges work with: HP OfficeJet Pro HP OfficeJet Pro 9110b Printer, HP OfficeJet Pro 9120b All-in-One Printer, HP OfficeJet Pro 9130b All-in-One Printer (~800) pages Tested Original HP ink cartridges printed more than 2X the pages, on average, than non-HP. Original HP Cartridges returned through HP Planet Partners are not sent to a landfill. You can recycle them for free in more than 60 countries and territories to become part of the circular economy.[3] Designed with security in mind. An upgraded chip[8] adds enhanced security to Original HP Ink Cartridges to help protect your data. So you can print more and worry less.[9] HP cares about your printing needs. We have a simplified product portfolio with cartridge yields based on how and what you print.[11] Ideal for professional-quality printing with vibrant color and bold blacks. What's in the box: 1 Cartridge Ideal for professional-quality printing with vibrant color and bold blacks.Count on professional-quality document