How to Refill a Hewlett Packard Ink Cartridge

By Chris Moore

  • Overview

    Hewlett Packard's InkJet printers are among the most widely used. But the cost of buying new ink cartridges can get expensive. It may actually be cheaper to refill the old cartridges with fresh ink. You'll also reduce waste by reusing the cartridges. Some stores will do this for you for less than the cost of a new cartridge, but it is also possible to refill the cartridges at home.
    • Step 1

      Purchase a toner cartridge refill kit. These should be available at any number of stores and should include multiple bottles of replacement ink, along with the supplies to refill any type of printer cartridge and refill instructions for all possible cartridge types.
    • Step 2

      Locate a hole on the cartridge where new ink can be inserted. If the hole is on the top, it is likely covered by a plastic lid or label that must be removed (and there may be more than one there).

    • Step 3

      Find a place to refill the cartridge where you won't mind a possible ink spill or stain. An old, cheap table is a good spot. Line the table with old rags or paper towels for extra protection.
    • Step 4

      Remove the security tab if the hole is on the bottom of the cartridge. Remove the circular seal with a pen knife to reveal a slight depression with a ball bearing in the center. Use the tip of the knife, a pen or anything else that will push the ball bearing into the cartridge.
    • Step 5

      Fill the appropriate refill device with about 10 to 15 milliliters of ink. For most HP cartridges, this is the plastic syringe. Turn the cartridge so the refill hole is on top and slowly inject the ink into it (If there are multiple holes on the cartridge top, use one of the holes closest to the edges).
    • Step 6

      Reseal the hole if it is on the cartridge bottom. Black electrical tape is the best thing to use. It isn't necessary to cover any holes on top, but you need to put the plastic lid back on if there was one.
    • Step 7

      Squeeze the sides of the cartridge lightly, especially if it's one of the long rectangular-shaped types. This will push out any excess ink and make sure the ink is all the way at the bottom of the cartridge.
    • Step 8

      Replace the cartridge in the printer and run a test print to make sure the cartridge still works.
    • Skill: Easy
    • Warning:
    • Never touch the cartridge's printer head, where the ink comes out to the paper. The oils from your skin can damage the head and its ability to print.

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