Action 1: Exactly what You Required
1. Printer-ink. You can purchase it from a computer system shop. In Bangalore, you can buy it from an ink refill store at the entryway of SP Roadway, near City market.
2. A 1ml nonreusable syringe. The smaller sized the needle, the much better.
3. Your printer cartridge. My printer utilizes an HP56 cartridge. However, the refill approach is exactly same for many inkjet cartridges.
Action 2: The Cartridge.
There is a black area on the white sticker covering the top-cover of the cartridge. Below the black area is a hole through which ink can be injected into the cartridge. You can peel the sticker label to find the hole. Or merely pierce the black area with a needle (as displayed in the figure ). How to Printer Cartridge Refilling.
See it here:
Action 3: Refill Your Printer Cartridge.
Draw ink into the syringe gradually and inject it into the hole. That's it!
Some essential suggestions:
1. The needle size is remarkably little. If you draw ink into the syringe too rapidly, you can develop air-gaps. Air spaces can obstruct your ink cartridge. So make certain that there are no air bubbles before you inject ink through the hole.
2. Filling up is an unpleasant task. Ensure you have a piece of paper/waste fabric. The image has a tidy background just to make it look great!
3. I was encouraged to fill the cartridge to near-capacity and not complete. i.e., my cartridge's capability is 19ml. So I filled it to about 13ml. Most likely this is to avoid a leak.
4. As soon as, the cartridge is loaded, it needs to be permitted to set for a couple of hours. This lets the ink to settle at the bottom of the sponge. The sponge lies inside the cartridge & can not be seen.
P.S. Sorry for the bad image quality in this instructable. I destroyed it by putting the video camera too near the things. How to Printer Cartridge Refilling.
Recognition: I was "taught" to fill ink by my next-door neighbor Sridhar. Thanks entirely!