Question about Brother TN420-A1
Lights are on solid. We've replaced both the drum and the toner units and it's still not working. Cleaned the corona, turned off and on and still not working. Is there another reset procedure?
Posted by Anonymous on
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Posted on Jan 02, 2017
I have seen the Toner cartridge in these cause this and also thought it was drum but new toner actually fixes it, have you installed new gen toner as well as drum? Make sure you tell machine you have fitted new drum too,
Posted on Oct 27, 2007
SOURCE: brother 8460n - toner error
Hi, This worked for us:
The message "Toner Error" is usually caused by the drum and/or toner
cartridge not being installed properly or if the machine does not
recognize the toner. To clear this message, follow the steps listed
1. Verify you are using Genuine Brother Cartridges. Brother strongly
recommends that you do not refill the toner cartridges provided with
your machine. We also strongly recommend that you continue to use only
Genuine Brother Brand replacement toner cartridges. Use or attempted use
of potentially incompatible tone cartridges in the Brother machine may cause damage to the machine and/or may result in
unsatisfactory print quality. Our warranty coverage does not apply to
any problem that is caused by the use of unauthorized third party toner
and/or cartridges. To protect your investment and obtain premium
performance from the Brother machine, we strongly recommend the use of
Genuine Brother Supplies.
2. Make sure that you are using the correct drum and toner cartridge(s)
for your machine. The part numbers for your model are as follows:
NOTE: Some cartridges can look EXACTLY the same among different models
and will fit the machine even if they are not designed for use in that
model. Verify the part number before using the cartridge(s).
TN550: Toner cartridge (standard)
TN580: Toner cartridge (high yield)
DR520 = Drum unitt.
3. Make sure that the cartridge is not damaged. Remove the toner
cartridge by following the steps listed below:
a. Press the cover release button and then open the front cover.
b. Remove the old drum unit and toner cartridge assembly. Place it on a
drop cloth or disposable paper to avoid scattering toner.
NOTE: Be careful not to spill the toner. If toner gets on your
clothes or hands, wipe or wash it off immediately with cold water.
c. Hold down the blue lock lever on the right and pull the toner
cartridge out of the drum unit.
d. Look at the toner cartridge and see if any parts or pieces appear to
be broken or missing, if so, the cartridge may be defective and should
4. If the toner cartridge is not damaged, reinstall it into the drum
unit. If it was damaged, use a new toner cartridge and reinstall it into
the drum unit.
5. Reset the drum/toner unit into the machine.
6. Close the front cover.
7. If the message "Toner Error' continues to appear on the display
unplug the machine from the wall outlet.
8. Open the front cover and remove the drum and toner assembly.
9. Look inside where the drum was. On the left side wall, look for a
small, black plastic lever/actuator. A flashlight may help see it.
10. Using the palm of your hand, slide it along the left wall in and
out a few times as this may free up the actuator/lever in case it is
stuck. The actuator/lever is spring loaded and needs to move back and
spring forward to operate correctly.
If the lever does not move, spring back or is missing and your machine
is within warranty, you can locate a Brother Authorized Service Center
(ASC) in your area or contact Brother Customer Service by calling
1-877-Brother (1-877-276-8437) Monday through Friday, excluding
holidays. If the machine is out of warranty, you can locate a Brother
Authorized Service Center using the information listed above.
If the lever moves freely and springs back to its original position
continue to Step 11.
11. Reinstall the drum and toner assembly, close the front cover and
plug the machine in.
Posted on Sep 02, 2008
Dear sir you see properly drum unite has a drum image sensor its demage so you change your copier drum unite, thanks.
Posted on Nov 22, 2009
If it is your first toner replacement you shsould only need the TN-360, as the drum should be good for about 12,000 copies. The machine will tell you when you are getting close to replaceing drum unit.
Posted on Oct 13, 2010
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