The drum unit was replaced because of immovable marks on one of the drums, not because it had exhausted its lifespan. I followed the instructions (Menu, 8, 4) to reset the drum counter, but I cannot get past 'Menu, 8'. (It only gives options 1-3). The drum life usage indicates a life of 64%. Does this mean I'll lose 36% of the life of the new drum? How can I reset the drum counter back to 100%?
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To reset the drum counter on a BROTHER MFC-8950DW open the front cover, press the start '*' button on the keypad, the screen will show the reset menu, click drum, click yes, and you will get a message on screen accepted. The procedure listed in the brother manual for this machine is wrong and does not work.
On the TN-155 toner cartridge, a mechanical 'flag gear' that will reset the counter for each individual cartridge when first 'triggered'. After each page print, the appropriate counters are incremented regardless of toner content (that is why it is still printing 'flawlessly') and after a pre-determined count has been reached, you will get a warning to change the drum as is will then be notionally (not actually) empty. Before you decide to reset the 'flag gear' on the drum, make sure you are not actually nearing the physical empty state ... it might be a wiser decision to purchase a refill kit which should come with instruction on how to fill and reset the 'flag gear' (this needs some dismantling of the drum cartridge) or buy a compatible or genuine toner drum cartridge. In any case, Google 'Brother drum flag gear' for more information. Good luck!
Hi,I think this guys can have more helpful information about your problem.See this link:http://www.quikshiptoner.com/catalog/brother-mfc-9840cdw-toner-color-set.html#resett_drum_manualview More Info button to see how to install the Drum unit. Pay attentionthat after replacing a Drum unit in Brother MFC-9840CDW you have to reset thecounter. See steps 9, 10 and 11 for doing so.9) Close thefront cover, plug the power cable back in and turn on the printer.10) Press the Menu button,and then enter the number 84 to access the Reset Menu.11) Press the scroll keys until Drum is displayed and press OK. I hope this can be helpful for you.
Did you recently replace the drum and the warning is unexpected?
Why does the message "Drum End Soon" continue to appear on the LCD after I replaced the drum?
This message would continue to appear if the drum unit counter was not reset when you installed a new drum.
To reset the drum unit counter, follow the instructions below:
Press Menu on the Control Panel.
Press the Up or Down Arrow key to select Machine Info..
Press the Up or Down Arrow key to select Reset Menu.
Press the Up or Down Arrow key to select Drum.
Press 1 to reset the drum unit counter.
You can use this procedure to reset a drum in order to continue to use up the remaining 'life' of the drum; recognizing that you will need to replace the drum when you start having print quality issues.