Refilling a single cartridge requires a tough process, hence it's difficult to produce hundreds of refills with all that having such good quality. It's not just about the knowledge to drill a hole nor pouring the liquid ink inside a cartridge that could suffice. Try to drill a plastic container, notice that there are bits of plastic that can get stuck inside the container. Pour a liquid inside a container through a small hole, no matter how gentle you pour it, air bubbles may appear. With these two issues regarding the process of refilling, these may cause uneven prints, blotches and streaks. Worse, even if the cartridge was recognized by the machine as a new replacement, do you think the ink inside would flow normally once the bits of plastic got stock on the nozzles? Plus, considering that you alone refilled the cartridge, once your experiment doesn't work out as what you expected, how can you get your money back?
Cartridge leaks, print failures due to malfunctioning cartridge, dried inks, clogged print heads, these are just some of the common issues you might possibly encounter when you use refilled cartridges. Instead of saving money, you end up wasting it by buying refill kits, plus the time you spent with its process, all went to nothing.
The good thing about opting for recycled cartridges aside from they're environment friendly and cost you less than 50% over branded cartridges. These consumables comes from a retailer, thus there's someone you can blame for any problems that the product comes with, plus you may request to return your money for a faulty cartridge. Another note worthy to mention about recycled toner cartridges and ink cartridges is that, the third-party manufacturer replaces obsolete components as well as the chip from each cartridges. Hence it is not always necessary for the user to reset the machine whenever installing the cartridge. Additionally, recycled cartridges can last far better than refilled ones, and produce more printouts with better quality and yield.