Includes printers: Canon BJC-4000, BJC-4100, BJC-4200, BJC-4300, BJC-4550 and Apple StyleWriter 2400

The cap on the top of the cartridge must be removed.   Hold the cartridge with the label facing you.  Insert the blade of the knife where the cap meets the cartridge and twist.  The cap should pop off very easily.  You can also grab the cap with pliers and crack it off. Be careful not to break the finger on the back of the cartridge.   This finger holds the cartridge into the print head.  The cap is not need anymore.

Canon ink refill instructions

Once the cap is off your will see 6 holes.  The 3 larger holes are not fill holes.  The smaller holes are the fill holes. In order to inject the ink you must first drill out the fill holes.  Using the thumb drill provided, drill into each small hole until you feel the drill go through the plastic. Optionally you may put a piece of tape over the outlet hole to prevent the cartridge from dripping while refilling. You are now ready to inject the ink.

Tape over the two holes which you AREN'T filling to prevent ink contamination or have the hole you are filling slightly angled down in case you over fill the ink will run away from the other two holes. Each color can only take about 3 cc when empty, so don't expect much. Insert the needle all the way into the cartridge deep into the hard sponge.
Inject S-L-O-W-L-Y to fill the entire cartridge. Be sure to remove and re-insert the needle a few times to expose the entire sponge to the ink.
Set on a paper towel for an hour as a drip precaution. Expect a few drips. Cover all holes during storage to prevent leaks and evaporation.

Replace the cartridge and run 1 - 3 cleaning cycles as per printer instructions.
Or print the following pages: for Black
For best results, leave cartridge in printer for 8 hours after refilling so the ink can saturate the entire sponge.

A Refill Kit should include Ink plus the following:
3 Syringes for color.
1 Thumb drill
Aluminum Tape

Quality Inks for your Printer
Printer ink and Refill kits for your Printer