Q Hi, I'm a bit confused about the difference between toner and drum cartridge. When I buy a replacement toner cartridge, it doesn't come with the drum, which came with the machine anyway. Why is it cheaper to buy this four-pack drum and toner set than just the four toner cartridges? What is missing from this pack that makes it cheaper? Says 15000 pages, so obviously a better deal. As I say, confused. Cheers.
All laser printers use both toner and a drum to print. Sometimes drums are packaged together with the toner cartridges, but with Brother laser products the toner and drum work independently – this is cheaper to run than those where the two units are combined. When you buy the drum you do not get any toner - that is why it is the drum unit is cheaper than the toner - they are two totally seperate consumables that your printer uses. The 15000 pages you are referring to is a rough guideline to how long your drum unit will last before it needs replacing.
Basically you only need to replace the drum unit when the printer tells you it needs replacing - if your printer is telling you to replace the toner - you will need to buy toner instead, as you do not get any toner when you buy the drum unit.
Hope that helps to clear up matters.