Step 1) Put the cartridge on some paper towels in an area where you can tolerate a spill.
Step 2) For the BC-22 Cartridge, locate the 4 fill hole plugs on top of the cartridge.
Step 3) Use a 1/16 inch or #55 drill to drill holes in the fill plugs on top of the cartridge. Alternatively, you may pop the plugs out of the top.
Step 4) Using a toothpick or the end of an empty syringe needle, insert into each hole to determine the correct color for each chamber (Black, Cyan, Magenta, and Yellow). Make a diagram so you'll remember.
Step 5) Tape over three of the four holes with a sealing tape. This is to prevent accidental contamination of a chamber with the wrong ink if you overfill a chamber.
Step 6) Inject the Black chamber with about 8 ml of ink (about 1/4 of a syringe bottle.)
Inject S-L-O-W-L-Y to fill the entire chamber. Be sure to remove and re-insert the needle a few times to expose the entire sponge to the ink.Inject deeply.
Step 7) Repeat steps 5 and 6 with the other three colors. NOTE: you will only need to put about 4 ml of ink in each of the color chambers.
Step 8) You only need cover the hole with a piece of electrical tape for extended storage or transportation to prevent leaking or drying out. Remove the tape when printing.
Step 5) Set on a paper towel for an hour as a drip precaution. Expect a few drips -- If there aren't any drips, the sponge is not saturated and ready to print. Cover all holes during storage to prevent leaks and evaporation.
Follow the directions in the inkjet manual.
Run the printhead cleaning software.