Change Drum Soon still shows after changing the drum unit

Time to really order a new drum and really replace with a new one.
Resetting the drum unit will not improve print quality. It only resets your drum and allows you to continue to print. You decide when to replace the drum unit not the manufacturer!

1.Remove the drum unit and toner cartridge. Wait 1 or 2 minutes.
2.Replace the drum unit and toner cartridge into printer.
3.The error message "Change Drum Soon/Drum end soon" will continue to appear if the drum counter was not reset when you replace the drum unit.
4.To clear this error message, you need to reset the drum counter as instructed below.
5.Make sure that the machine is turned on.
6.Press Options.
To confirm you are installing a new drum, press 1.
7.When the LCD shows Accepted, close the front cover.
8.Your drum is now reset.

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

Open the front panel.Press and hold the clear button.When "Drum replaced"shows on the lcd panel select yes.The message will be reset.If you experiece any lines in the future you will have to replace the drum catridge.

7 Wait until the time, date and answering mode appear on the display. Then press the SELECT FUNCTION key. 8 Press the 7/COUNTER DISPLAY One-Touch key. The display will show DRUM COUNT. 9 Press to clear the image drum unit
counter. 10 Press the SELECT FUNCTION key to finish.

Press Clear.
8 Press 1 and when the LCD shows ACCEPTED,
and then close the front cover.

Open the front couver as if you are about to change the drum unit. With the couver still open, press the options button for a while and in the display will apear a message asking if you want to change the drum unit. Choise the yes option and close the front couver. GOOD LUCK.

5750e fax machine: To reset the drum counter follow the instructions listed below :
Get the message to appear in the LED
1. Open the front cover.
2. Remove and Re-insert Drum/Toner unit
3. Press the CLEAR key.
4. Press 1 to reset.
5. Close the front cover, pressing firmly on each side until they click
into place.

http://www.brother-usa.com/FAQs/Solution.aspx?FAQID=100000007572&Sympt=Why+does+the+message+CHANGE+DRUM+SOON+continue+to+appear+on+the+LCD+display+after+I+replaced+the+drum%3f&Model=58&ProductGroup=2&Keyword=Change%20drum%20soon%20message&ProductID=PPF5750e

This machine is reset with a plastic sheet that come in the new drum unit. When the drum is inserted for the first time, the sheet slides out and trip the exit sensor in a certain way. Then the counter is cleared. If you still have this clear plastic sheet, then you can reinsert it into the top of the drum unit and try it again.

Reset of the drum counter
Open the front cover.
Press the Options key on the control panel.
The display will show "REPLACE DRUM - 1.YES 2.NO".
Press 1 to reset the drum count.
Close the front cover.
Hope this helps...

I fixed the problem (following the user's guide).
1. After reinstalling the new drum unit into the printer, keep the front cover open.
2. Press "Clear/Back" on the machine
3. Press "1" and when the LCD shows "Accepted", close the front cover.