Question about Brother MFC-7820N All-In-One Laser Printer

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How do I add toner to machine? Also, is this copier do color copies?

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1 Open the front cover and pull out the
drum unit and toner cartridge assembly.

2 Hold down the lock lever on the left and
pull the toner cartridge out of the drum
unit.

3 Unpack the new toner cartridge. Place
the used toner cartridge into the
aluminum bag and discard it according
to local regulations.

4 Gently rock the toner cartridge from side
to side five or six times to distribute the
toner evenly inside the cartridge.

5 Remove the protective cover.

6 Insert the new toner cartridge in the
drum unit until it clicks into place. If you
put it in properly, the lock lever will lift
automatically.

7 Clean the primary corona wire inside the
drum unit by gently sliding the blue tab
from right to left several times. Return
the blue tab to the Home position (▼)
before reinstalling the drum unit and
toner cartridge assembly.

8 Install the drum unit and toner cartridge
assembly in the MFC.
9 Close the front cover.

If you need illustration for this, click on the link below and turn to page 112

http://www.brother-usa.com/ModelDocuments/Consumer/Users%20Manual/UM_MFC_7420_7820N_EN_1156.PDF

Posted on Jun 02, 2009

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Why does my kyocera 2026 display an error and says add toner even if I have already added toner?


because your dv unit is not agitating your toner these machines are notorious for this you can take out suspect color dv unit cover the toner hole shake the hell out of the unit smack the bottom a few times put it back in and if that works it will say adding toner it may overtone that color but running multiple copies will eventually clear the excess its best if you wrap the unit in a rag as well as cover the toner hole because toner will leak out when you shake it or replace that color dv unit but they are expensive if you don't know how to remove the dv unit try google or youtube try not to let anything come out when you shake it because there is developer as well as toner in there if you lose too much of that your unit will be worthless it wont ever be able to add enough toner to get add toner message to stop

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I suggest removing the toner, and visually inspecting it, make sure the sealing tab has been removed, give it a really good shake, as the toner may have settled in storage. re-insert the cartridge making sure it goes in the right way.


If you can hear a slight 'clicking' noise it's adding toner and pumping it into the developer unit, some machines take 2 minutes, some take 6..

Failing that, lift the platen cover and do a few black copies, so you force the machine to add toner.

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Sounds as if it is low on toner.When they run low, the motor will continue to run trying to add more toner.The toner add system is a glorified flour sifter.Eventually it will set the add toner on.Good Luck

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