When it comes to laser printers, in most cases you can either get a lot of technology in a huge package, or just “a bit” of the same tech packed within a smaller case. But, that’s not the case with the Brother MFC-7860DW. As a $600 all in one device packed with features (Wireless connectivity, automatic duplex printing, a capacity of 250 sheers and a 10.000 pages duty cycle), this printer takes a surprisingly small amount of space, and besides the size, it’s also quite silent for a machine of this size. The unit can hold up to 12,000 pages and, since there is no color option, you only have to worry about the black ink. Once you’re finished with the first round of 12,000 pages, you will need to replace the drum unit, so let’s go and cover which exact model you need, how much it’s going to cost you and where do you actually buy a drum:

Where can I buy an affordable Brother MFC 7860dw drum unit?

Brother DR-420 Drum UnitYour printer, the Brother MFC 7860DW, is featuring a single drum unit which then fits toner cartridges in it. The exact model name is Brother DR-420 Drum Unit, also known as the BRTDR-420, depending on the seller. It’s a 12,000 yield unit, which is priced at around $70, but can also be found for a few dollars less if you’re lucky. The best way of buying the right model is to go through the various offers on Amazon, and target the sales which Brother has through the year. You can check out the pricing and shipping rates here: Genuine Brother DR-420 Drum Unit. Once it’s delivered, you want to exchange it asap, and this is how you do it:

How to replace the DR-420 Drum Unit?

  1. Turn on your MFC-7860dw and open the front cover of the device.
  2. Remove the old drum unit from the device, together with the toner cartridge in it.
  3. There is a green lock lever, push it to release the toner from the drum assembly.
  4. Unbox your new Brother MFC 7860dw drum unit
  5. Take the old toner from the old drum assembly and slide it in to the new drum unit until you hear a click.
  6. Install the complete unit back in to your device, same position where you found it.
  7. Close up the front cover, done.