I have the MCF 7340. I am getting a message - End of Drum Soon. So, I bought a new drum ($120) and installed it. Now it says Drum end. and won't print. Ive turned the machine on and off several times, re-insetred the drum and toner, taken toner cartridge out and re-installed and repeated these steps several times not, but still get the End of Drom message. is ther something that I must manually reset to fix this? David

The problem with this is the design. Each toner cartridge has a microchip on it, that counts the pages you print. The company has determined that you get x amounts of prints. Then you have to replace it, empty or not. This printers do not work the same way as an expensive professional business copier. In an pro style there is a spent toner cartridge that collects all of the wasted toner that is on the drum. On a small business/home style this spent toner goes back into the cartridge. There is no level indicator, even on the inkjet printer. They too, have a chip that says you have x amount of prints/cleaning cycles they can go through. Look up inkjet refill kits or inkjet cartridge programmer.

My MFC-7420 began to display the message "Drum end soon" so I quickly went out and purchased a new drum. But I decided not to install it until I needed to. Because what does "drum end soon" mean? I thought it would mean that the print quality would deteriorate enough that I would notice the problem. So I continued to replace toner as needed, and pushed the blue cleaning thing down the wire regularly. This went on for over 3 years until *finally* I started having regular print job production problems. I replaced the drum, and the problems were solved. So,my advice is be prepared, but don't replace the drum until you have to -- the message means very little.

why toner life end message keep on showing on sp 1200s prints.

each replacable part has its own life of rotation, heat conversion ect. may be the life cycle of the drum reached to end. you need to replace the drum assembly.

Hi,
Did you "tell" the machine that you have installed a new drum? You have to confirm that the drum has been replaced, so the unit can reset it's usage counter and work happily.
Go to the link below, it explains the whole procedure, including the confirmation at the end.
Remove the drum again, reinstall same one and confirm as per the instructions.

http://welcome.solutions.brother.com/BSC/public/us/us/en/faq/faq/000000/000100/000054/faq000154_039.html?reg=us&c=us&lang=en&prod=mfc7340_us_as&Cat=7

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Sounds like you need to replace the drum unit soon. Here is a new one that you can buy that is compatible with your printer: http://www.amazon.com/Brother-DR360-DR-360-Drum-Unit/dp/B001QTY5QE/ref=sr_1_9?s=office-products&ie=UTF8&qid=1305153837&sr=1-9.

Open the front cover and press clear/back buttom
then press start
finally, press 00, then the screen will show accepted.

after that, you will be good to go.

To reset the drum counter on the 7340 series press Clear/Back.
Confirm you are installing a new drum by pressing 1.
When the LCD shows Accepted, close the front cover.
Good Luck and Thank You for using Fixya.
WheatlandServices

The drum counter counts to 15000 then says replace drum soon. Just open the front door and press options. Select yes.

If this model comes with the drum separately of the cartridge, only replace the cartridge. There's no need to change it every time. until prints start to get lines or dots. Don't expose the drum to light too much.