Step 1) Put the cartridge on some paper towels in an area where you can tolerate a spill.
Warning: This cartridge can be extremly messy to refill. Please wear latex or rubber gloves and old clothes. Cover all surfaces that the ink can drip onto with newspaper.
Step 2) Fill the syringe bottle with ink.
Step 3) Remove the needle from the syringe bottle. Place the cone-shaped needle adaptor on the syringe bottle.
Step 4) Take the cartridge and locate the hole through which the ink normally exits the cartridge.
Step 5) Turn the exit port down (toward your lap).
Step 6) Take the syringe bottle and inject the ink slowly up through the exit port.
(You may wish to trim the cone-shaped needle adaptor to fit the exit port more accurately.)
Continue to inject the ink until the ink comes out the vent hole on the top of the cartridge and stops foaming.
Step 7) Now flip the cartridge over (the exit port will be toward your face). Now, on the bottom is the vent hole.
Step 8) Place the needle back onto the syringe bottle.
Step 9) Insert the needle into vent hole with the vent hole pointing down toward your lap. Inject ink slowly until ink comes out the ink exit hole (which is now on top) and stops bubbling.
Step 10) Let the cartridge sit for 10 minutes with the ink exit hole pointing upward. You may wish to fill another cartridge while you are waiting.
Step 11) Repeat Step 9 (injecting ink) and Step 10 (letting the cartridge rest 10 minutes).
Step 12) Install in inkjet.
Step 13) You only need cover the vent and exit holes with electrical tape for extended storage or transportation to prevent leaking or drying out. Remove the tape when printing.
Clean the printhead only if the cartridge doesn't print or prints in streaks.
Follow the directions in the inkjet manual.