Printer cartridges...

I have had some that I have only been able to refill a handful of times. Others I have been able to refill around 10 times. I think it depends on the brand, how you do the refilling, if you refill it before it goes empty. Refilling before it is empty is key. Most cartridges will burn out if you try printing with them when they are empty cause the ink helps cool the circuitry. I assume that cleaning the print head each time you refill will help extend the life of the cartridge.