This chip will reset the toner level on a DELL 2230, 2330, 2350, 3330, 3333, 3335 cartridge.
Replacing the chip will also allow you to revive a cartridge whose chip has become unrecognized allowing you to refill many more times. Replacing the chip is not usually required and is never required for the first refill.
The chip is calibrated to the page yield of our toner kits (3500 pages at 5% page coverage).