Use the HP SureSupply app or a generic QR code reader to scan the QR code on the cartridge's security seal. If you cannot capture QR codes with a smartphone, go to www.hp.com/go/ok to validate online.

The HP 951 is a standard pigment based cyan, magenta, or yellow ink cartridge that prints 700 pages. The HP 951XL is a high yield cartridge which contains more ink than a standard HP 950 and prints 1,500 pages.

Make sure the exit port of the cartridge is facing up as shown. Insert the needle into the exit port of the cartridge at a slight angle as shown here. And inject the cartridge with ink.

"Ink companies spend a lot of time to get the right blend of pigment, dye, and vehicle to be able to have a very stable small droplet for high-resolution printing," Williams says. All of that research and development, of course, costs a lot of money - and that's where the price comes in.

How do I identify an original HP laptop? You can identify an original HP laptop by its serial number. If you have the information of your computer's serial number, then you can use it to identify your laptop as an original HP product.

The main difference is that genuine ink cartridges are made by that specific printer's manufacturers, while compatible ink cartridges are made by a third party.

700 standard pages Mixed text and graphics

What is the difference between HP 950 and HP 951 ink? HP 950 ink is black, and HP 951 color cartridges are the Cyan, Magenta, and Yellow.

The HP 951 is a standard pigment based cyan, magenta, or yellow ink cartridge that prints 700 pages. The HP 951XL is a high yield cartridge which contains more ink than a standard HP 950 and prints 1,500 pages. The HP 951 and 951XL have the same dimensions and fit in the same color slot in OfficeJet printers.

Yes, you can.

Ink Research and Development Extensive technology goes into cartridge manufacturing. Inks are specially formulated for each brand and type. Printers and copiers are designed to work best with OEM cartridges. This factors heavily into replacement cartridge pricing.

"Ink companies spend a lot of time to get the right blend of pigment, dye, and vehicle to be able to have a very stable small droplet for high-resolution printing," Williams says. All of that research and development, of course, costs a lot of money - and that's where the price comes in.