Instructions
1. Put the cartridge on some paper towels in an area where you can
tolerate a spill.
2. Peal off the top label. 
3. Fill the syringe with 15 ml. of black ink.
4. Very S-L-O-W-L-Y inject ink into any hole (they all go to the same sponge).
5. When finished, replace the top label.
6. Replace the cartridge and run 1 - 3 cleaning cycles as per printer instructions.
If necessary leave cartridge in printer for up to 24 hours.
The cartridge will print just like a new one. Even though the cartridge prints good, the ink level guage will not read full after a refill.