Click on the icon to see a list of your installed printers. Select the printer you want to shop for, and then click "Shop online." You'll be connected to the HP SureSupply ordering site, where you'll see a list of the supplies that work with your printer. You'll find exactly what you need-without having to look up part numbers.
You can view purchase options, which may include the ability to check availability, compare prices and purchase from HP or from participating online retailers, printing a personal shopping list, finding a local store or obtaining a telephone number to place an order (purchase options vary by country).