The ink in this cartridge is retained because the cartridge contains a sponge to hold the ink.
Step 1) Put the cartridge on some paper towels in an area where you can tolerate a spill.
Step 2) Look at the top of the cartridge. You will notice three entry points with plugs in them. (A few of these cartridges don't have these holes, so you will need to drill three 1/16 inch holes, one over each color chamber if you have one of these odd cartridges.)
Step 3) Push the plugs into the cartridge with a ball point pen or similar device. The photo inks go into the middle holes. Check the holes with a toothpick to determine which colors go into which holes.
Step 4) Insert the syringe needle fully into the hole, angling toward the front.
Step 5) Inject 8-10 ml of the ink into the fill hole slowly. Go slowly or you will develop air dams in the sponge which will block ink flow.
Step 6) When the ink starts to come out of the print head, the cartridge is full.
Step 7) The holes on top must be open during printing. You may tape them over for longer storage or during transport.
Step 8) Set above a paper towel for an hour as a drip precaution. Do not allow the cartridge to touch the paper towel, as the towel will draw out the ink.
Step 9) For best results, let sit overnight before using.
To order ink, toner and supplies for you printer, please call 1-877-453-3640 or online www.bestinsupplies.com