1. Use the best cleaning techniques: Nozzle cleaners and rinse solutions help to clean and prepare the cartridge for reuse.
2. Use proper print head tape: Recommended for black cartridges, but not always for colour--tape can loosen the print head causing it to fall off.
3. Use transport/storage clips: Clips prevent leaking through the print head, extend shelf life as no air can reach the nozzles, and protect the foil.
4. Use the correct inks: Don't take short cuts with cheap or universal ink. The customer is paying for quality.
5. Use the best filling techniques: Whenever possible do not drill new holes in cartridges--if there was meant to be an extra hole there would be!

6. Don't overfill cartridges: Air pressure is part of the system so do not exclude it totally.
7. Test every cartridge: Batch testing is only for the big guys. This is your product--make sure it works
8. Always apply new labels: Never sell a remanufactured cartridge without a label stating that it is remanufactured or a replacement. You are in breach of laws in just about every country in the world if you do not label your product as your own.
9. Sell at a fair price: Too cheap and the customer will not believe it is a quality product. Too expensive and they might as well buy the original. Keep checking market trends.
10. Use a reputable supplier: Buy from a supplier who supports you and your efforts to sell quality products allowing for one-stop shopping.