[guroot]

Random info because I used to work at an office supply store: Most brother toner cartridges are cheaper because they separate the drum (That extra piece you take apart and place the cartridge in when you replace the toner) from the toner container. This makes for cheaper cartridges, but at some point you will have to replace the drum and that can sometimes be as much as a new printer. That said drum units last for >10,000 pages usually. Overall in my opinion it's a better design than HP or Cannon who's cartridges include the drum and are thus more expensive up front, because you are only replacing what needs to be replaced at the time.