Unfortunately, these original cartridges Consumers should mercilessly to Checkout! Why? Because of the devices 'empty' reported as cartridges (specifically the color cartridges) usually are still almost full! I had mainly done only black printouts. Nevertheless, after a short time the first color cartridge was empty! Wanted necessarily with my Brother MFC multifunction machine the "empty" ink cartridge - of the notification from the device - Swap. A further printing no longer works with these devices then yes. When unpacking the new cartridge, I noticed that this was not actually heavier than the spent cartridge. That's why I put both cartridges and found that the new cartridge just ridiculous 3g heavier than the supposedly empty cartridge on the letter scale. So I did some research on the Internet and brought in experience that after the number of pages specified by Brother cartridges reported by the device as "empty", although this would still hold mehfach longer before they are really empty. One must then twist only the reset lever about 90 degrees and the cartridge is again assumed by the device as "new"! Is an effort of a few minutes with a saving of more than 50 euros each time for a new original cartridge! Can you make until the print quality of the individual (color) cartridge is actually weaker, and then replace it with a new cartridge. Here a lot of unnecessary waste is produced, the manufacturers of modern laser printers - that still flushed great additional sales in the cash register - here the company Brother! The bona fide user who obediently changes his cartridges, thereby cashed mercilessly! Was recently reported in a television report of this issue - with the statement that some cartridges - to reset the reset lever - still 5-7 times can be reused before they are really empty! The same happens with the so-called "starter cartridge" in the initial in the devices. Who there retrofitted the missing reset lever, can this cartridge - despite lower capacity - even further use. Therefore, I prefer when the costs from three stars. Stay two stars left for good print quality. Individual reset lever to purchase and instructions for resetting there's the Internet!
18/04/2014: In the meantime, the first cartridge is actually empty. Then weigh approx 400g. The full cartridge weighs about 440g. Thus, you can now determine if the "empty" cartridge once (or even several times) could be used. When the cartridge is really empty, it begins on the printout to leave and easy to print on the entire paper surface with color splashes of color. Then you use the entire capacity of the pressure cartridge and specially saved a lot of money in the color cartridge! Hope my information other users help to reduce the own printing costs.