Refill and Reuse Your Used Toner Cartridges
The mere fact that a printer cartridge is empty doesn’t mean that the cartridge itself is no good. Refilling a toner cartridge is quick and easy and requires no special skills. Toner cartridges can be refilled through either a removable fill cap, or you can make a hole in the cartridge if there is no refill cap. It’s recommended that a soldering iron be used to create the hole; drilling can cause plastic bits to enter the toner chamber, which will cause problems once you start using the printer.
Be warned, the refill process can be messy, harmful to your health, and ruinous to your furnishings. The toner powder can adversely affect your health; therefore, you should protect your eyes and cover your mouth when attempting to do a refill. It is also a good idea to do the refill outside your office or building, as the toner powder can really create a mess.
Before you use a remanufactured or refilled a laser printer toner cartridge, check that it won’t void your warranty. Manufactures usually include this rule to protect the revenue they make from selling replacement cartridges. It is true, a poorly done toner cartridge refill can adversely affect print quality, or even reduce the useful life of your laser printer, but the quality of refill products are, by-and-large, comparable to what you will get from the OEM (original equipment manufacturer).
Some manufacturers include 'smart chips' or fuses, which you will need to replace in order to get the cartridge to function past its “expected" life. Fortunately, these replacement fuses are available from manufacturers of refill kits.