strongly recommends that customers do not use generic drum units and/or toner
cartridges, or refill their Brother 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 unauthorized third party drum units, toner cartridges, or toner.
the machine continues to display the message "Replace Parts Drum", the drum unit
has reached the end of its life and a new DR720 drum unit will need to be
installed. The yield of a drum unit is approx. 30,000 pages (A4/Letter single
sided pages). Please purchase and install a new drum unit.
- DO NOT touch the
surface of the drum unit. If you touch it, it could degrade the print
- Damage caused by
incorrect handling of the drum unit may void your warranty.
1. Press the front cover release
button and then open the front cover.
2. Take out the drum
unit and toner cartridge assembly by pulling on the handle in the middle of the
drum unit and toner cartridge assembly.
NOTE: We recommend that
you place the drum unit and toner cartridge assembly on a piece of paper in case
you accidentally spill or scatter toner.
WARNING: After you have just
used the machine, some internal parts of the machine will be extremely hot. Wait
for the machine to cool down before you touch the internal parts of the
prevent damage to the machine from static electricity, DO NOT touch the
electrodes shown below.
3. Push down the green
lock lever on the right side of the drum unit and toner cartridge assembly and
then lift the toner cartridge out of the drum unit.
NOTE: Handle the toner
cartridge carefully. If toner scatters on your hands or clothes, immediately
wash it off with cold water.
- DO NOT put a toner
cartridge or a toner cartridge and drum unit into a fire. It could explode,
resulting in injuries.
- DO NOT use flammable
substances, any type of spray, or an organic solvent/liquid containing alcohol
or ammonia to clean the inside or outside of the machine. Doing so could cause a
fire. Instead, use only a dry, lint-free cloth.
- Be careful not to
NOTE: To avoid print
quality problems, DO NOT touch the shaded parts shown below.
- Be sure to seal up
the drum unit tightly in a suitable bag so that toner powder does not spill out
of the drum unit.
- Go to http://www.brother-usa.com/environment/tonerinkdisposal.aspx
for instructions on how to return your used consumable items to the Brother
collection program. If you choose not to return your used consumable, please
discard the used consumable according to local regulations, keeping it separate
from domestic waste. If you have questions, call your local waste disposal
4. Unpack the new drum
5. Put the toner
cartridge firmly into the new drum unit until you hear it lock into place. If
you put it in properly, the green lock lever will lift automatically.
6. Put the drum unit
and toner cartridge assembly back in the machine. Close the front cover.
replace the drum unit with a new one, you need to reset the drum counter. DO
NOT reset the drum counter when you only replace the toner cartridge.
Resetting the drum
Stop/Exit to interrupt the error temporarily.
the UP OR DOWN ARROW to display Machine Info.
machine will display Reset Drum?.