Description of Problem 100000028220
Why do the Toner and Error LEDs continue to appear on the display after I
replaced the toner cartridge?Description of Solution 200000036167
solution is to be used only when the Toner and Error LEDs are on
immediately after a new toner cartridge has been installed.
strongly recommends that customers use only genuine Brother drum units and/or
toner cartridges. Each Brother laser printer is designed to work at pre-set
temperatures that are matched exactly to each of our individual toner
formulations. Each individual component is designed to work with the other
to ensure quality and reliability. Using non-Brother supplies may affect the
hardware performance, print quality and machine reliability. The Brother limited
warranty does not apply to any problem that is caused by the use of third party
drum units, toner cartridges or toner.
Did you replace the toner cartridge with a NEW, out of the box, genuine Brother
toner cartridge (TN720 or TN750).
If a toner cartridge from another machine was installed (even if there is still
toner left in the used cartridge) it will not clear the Toner and Error
Open the front cover and remove the drum and toner assembly.
recommend placing the toner and drum assembly on a piece of paper in case of
accidental spill or scatter toner.
Remove the gray toner cartridge from the black drum by holding down the green
lock lever on the right side of the drum unit and lifting the toner cartridge
there is no gray cartridge installed, you will need to install a new TN720 or
Gently shake the toner cartridge from side to side.
Reinstall the toner cartridge into the drum unit and you will hear it lock into
place. If you put it in properly, the green lock lever will lift
Reinstall the drum and toner assembly into the printer and close the front
the error is not cleared, the toner cartridge has reached the end of its life
and will need to be replaced with a new, unused genuine Brother TN720 or
the toner cartridge has already been replaced but the error was not cleared,
call Brother Customer Service at 1-877-Brother (1-877-276-8437).