The new cartridge is much smaller now this changes things a lot with regard to refilling. The problem is that the entire sponge must be filled with ink in order to hold the recommended amount of ink. This is hard to achieve for the amateur because of air in the sponge.
The professional filler fills the cartridge under a high vacuum this removes the air and then the ink is injected. Only after the sponge is filled completely is air let back into the cartridge. This works very well and if the empty is a good one it almost always results in a working cartridge. Now we are talking about the small cartridges produced in the last 2 or 3 years. That is like the small the HP 56 and 57and The Lexmark 16 and 26.
So what can you do to increase your chances of success? First thing is don’t try to fill the cartridge to it’s full capacity. For instance the HP 56 originally had 19 ML so only put in 8 to 10 ML of ink. Trying to fill it full will only result in leaking and other problems.
Because of the air problem I recommend that you insert the needle as far as possible and angle it toward the print head. Another thing that can help is to use a gravity feed. Remove the plunger from the syringe and put in the correct amount of ink. Let the ink slowly enter the cartridge by gravity.
Don’t try and fill a cartridge that been sitting around for weeks or months. Even the professional have problems with these. Fill the cartridge at the first sign that it’s going dry.
After filling your cartridge you may find that it won’t work at all. When you touch it against a paper towel nothing at all comes out. There’s a channel between the print head and the compartment that has the sponge. If this channel gets empty it can take some effort to get it filled with ink. You can buy a cartridge primer to solve this problem. These clip onto the cartridge and the syringe hooks to it. You pull out on the plunger of the syringe and this sucks ink into the empty void I was talking about. You can find these by doing a search on Google or another search engine.
The other way of forcing ink into the cartridges uses centrifugal force. Don’t do this where ink can get on anything! How the cartridge at about shoulder height and bring the cartridge rapidly down to about your knee. Stop abruptly and the ink tries to keep going forcing it up into the print head. You may have to do this several times before your successful. Keep checking by touching the print head against a paper towel. Ink should come out freely. Buying a primer is by far the best method.
The other reason the cartridge won’t print at all is that it is dripping ink. A dripping cartridge won’t print right and in most cases it won’t print at all. If you have over filled then you can suck some of the ink out. Or you may let it set for 2 or 3 hours a will usually do the trick.
Remember we are talking about cartridges that aren’t dried out. If your cartridge are dried out I would recommend buying new or refilled cartridges, as you will probably have a lot of problems. Also we are talking about Hp And Lexmark cartridges. For the others I recommend buying new compatibles, as it’s cheaper in the long run than refilling.