Refill Instructions
HP 51625A Cartridge

Theory

Instructions

Step 1) Put the cartridge on some paper towels in an area where you can tolerate a spill.

Step 2) We must remove the green or blue top. Use either of these two methods:

1. Gently clamp the cartridge bottom in a vise or similar device. Grab the top with a large wrench or set of pliers and crack off the top. This will likely break some catridge, but this is generally cosmetic damage.
2. Lay the cartridge on a solid surface and put the edge of a sharp knife at the intersection of the black and colored catridge. Hit it sharply with a hammer. Then pull off the top.

Step 3) Keeping the cartridge on paper towels, take a syringe bottle and fill it 1/4 full of ink -- about 8 ml.

It is important to keep the paper towel touching the printhead area while filling to avoid cross-contamination of the colors. If a large drop of ink forms on the bottom of the cartridge, wipe it away immediately.

Step 4) Insert the needle fully into the appropriate hole (from the printhead side, the colors are probably Magenta (Red), Cyan (Blue), and Yellow). Inject the ink very S-L-O-W-L-Y and watch until the sponge is saturated. (Some colors will not be empty, so don't expect the sponge to absorb the entire amount.) Be sure to inject deeply to avoid trapping air bubbles in the bottom of the cartridge.

Step 5) Repeat steps 3 and 4 for the other two colors with different syringes.

Step 6) Put the top back on and tape down in place.

Step 7) Set above a paper towel for an hour as a leak precaution. Expect a few drips. Remove any large drops immediately.

To Clean the Printhead

1. Only clean the printhead if you get poor print quality or no print.
2. Be sure that you don't have an air bubble problem.
   • If cleaning the printhead causes the situation to get worse rather than improve, you probably have an air bubble problem.
   • If you have an air bubble problem, you need to re-inject some ink very deep into the cartridge.
3. Follow the directions in the inkjet manual to run the cleaning routine.
4. If this doesn't work, take the cartridge to the nearest hot water faucet.
   • Turn on the hot water. Let it get hot.
   • Put only the printhead portion (where the ink comes out) under the hot water for 2 to 3 seconds
   • Dry off the cartridge using a soft tissue.
   • Re-insert the cartridge into the inkjet.
   • Run the normal cleaning routine a few times.
5. If this doesn't work, soak only the printhead in simmering water for up to 2 hours. You may add up to 50 percent ammonia for really tough clogs.

To Clean Your Sink

To Clean Your Hands

To Place An Ink Order