One of the biggest miss-conceptions about these cartridges is that they reset when you take them out and every time you take them out.
They don't. When the cartridge gets to a very low level you will have a few more prints left and then it was auto-reset during a print or during a cleaning. At that point the cartridge is reading "empty" and you take it out and put it back in and it will be reset to full.
That said, we recommend getting chip resetter for the R2000-style carts. They can be manually reset as well as auto-reset. When one is low on these carts, all of them are, so it's worth refilling and resetting all of them when one is empty.